El presunto grupo de espionaje chino utilizó una cadena de exploits Roundcube para infiltrarse en las universidades

Atacantes alineados con China irrumpieron en las redes de universidades estadounidenses y canadienses para robar datos confidenciales y establecer un acceso persistente a través de webshells y puertas traseras, dijeron el martes los investigadores de amenazas de Proofpoint.

Los ataques motivados por el espionaje se dirigieron a departamentos de física e ingeniería, centrándose en administradores y profesores con vínculos de seguridad nacional u organizaciones que investigan astrofísica y física de partículas.

Proofpoint identificó menos de 10 víctimas universitarias y estima que unas pocas docenas de universidades podrían verse afectadas, dijo a CyberScoop Greg Lesnewich, investigador principal de amenazas de Proofpoint. La compañía observó la campaña por primera vez en mayo y cree que está en curso.

«Existe una alta probabilidad de que muchas víctimas aún no hayan sido informadas de esta actividad», añadió Lesnewich.

Los investigadores rastrearon los ataques hasta un par de vulnerabilidades críticas en Roundcube, un cliente de correo electrónico de código abierto, que fueron explotadas y encadenadas para robar credenciales y obtener acceso a largo plazo.

El grupo de amenazas, que Proofpoint rastrea como UNK_MassTraction, explotó CVE-2024-42009 para ejecutar JavaScript dentro del navegador de la víctima, luego explotado CVE-2025-49113 para hacerse un hueco en el servidor de correo.

El exploit inicial en la cadena solo requiere que la víctima abra un correo electrónico, y los atacantes enviaron a las víctimas una serie de señuelos genéricos para activar el acceso inicial.

Proofpoint atribuye la campaña a un grupo alineado con China porque los atacantes utilizaron una red encubierta conocida utilizada por múltiples grupos de amenazas alineados con China, una cadena de infección que conduce a VShell y dejaron artefactos en idioma chino en los correos electrónicos de phishing.

Los investigadores no han sacado ninguna conclusión sobre por qué los atacantes atacaron las universidades y qué buscan.

«No tenemos datos que sugieran qué fue robado, ya que sólo observamos el intento inicial de entrada de correo electrónico», dijo Lesnewich.

Los aspectos de ingeniería se alinean con las iniciativas estratégicas de China, añadió. Los cazadores de amenazas de Google detectaron recientemente un grupo de espionaje patrocinado por el Estado chino que se metió en los sistemas durante años, robando datos académicos, médicos, militares, de ciberseguridad y de política exterior.

«Los adversarios alineados con China han estado apuntando a otros tipos de dispositivos periféricos, como enrutadores y concentradores VPN, durante años con varios exploits para crear un punto de apoyo en una red objetivo, sin utilizar el correo electrónico para la entrega», dijo Lesnewich. «Esta campaña le da la vuelta a eso, utilizando el correo electrónico para entregar una cadena de exploits para comprometer un servidor de correo, en lugar de usar el correo electrónico para entregar una URL de recolección de credenciales o malware dirigido a un usuario final, no a un servidor».

Matt Kapko

Escrito por Matt Kapko

Matt Kapko es reportero de CyberScoop. Su ámbito incluye delitos cibernéticos, ransomware, defectos de software y (mala) gestión de vulnerabilidades. El californiano de toda la vida comenzó su carrera periodística en 2001 con paradas anteriores en Cybersecurity Dive, CIO, SDxCentral y RCR Wireless News. Matt tiene una licenciatura en periodismo e historia de la Universidad Estatal de Humboldt.

El nuevo ChocoPoC RAT apunta a investigadores de vulnerabilidades a través de repositorios de exploits PoC falsos – CYBERDEFENSA.MX

Los atacantes esconden un troyano que roba datos dentro de un código de explotación falso dirigido a las personas que se ganan la vida cazando errores. El malware, llamado ChocoPoCviaja en repositorios de prueba de concepto (PoC) de Python en GitHub que afirman explotar nuevos CVE.

Ejecute uno y extraerá silenciosamente sus contraseñas guardadas, cookies del navegador y archivos, y luego le entregará al atacante un shell en su máquina. YesWeHack y Sekoia publicaron sus hallazgos conjuntos el 1 de julio y advirtieron que, a partir de ese informe, el malware y sus servidores todavía estaban activos, por lo que no ejecute ninguna de estas PoC.

El truco está en dónde se encuentra el código. El PoC visible parece limpio. El malware se esconde en un paquete de Python que el PoC incorpora como una dependencia, por lo que pasa desapercibido en una revisión rápida del código.

Cómo funciona la trampa

El cebo es la presión del tiempo. Cuando surge una falla importante, los investigadores se apresuran a probarla y a obtener PoC de la comunidad para actuar rápidamente. Esta campaña convierte ese hábito en una vía de infección.

Ciberseguridad

La cadena, en términos sencillos:

  1. Clona el repositorio y ejecuta pip install para obtener los requisitos de PoC.
  2. Eso atrae un paquete llamado frint, que a su vez arrastra un segundo paquete, skytext.
  3. skytext incluye un pequeño archivo compilado (gradient.so en Linux, gradient.pyd en Windows) que se ejecuta en el momento en que inicia el PoC.
  4. Solo se despierta cuando ve el PoC real cargado, busca un archivo llamado EXPLOIT_POC.py o similar, luego descomprime su carga útil y descarga el troyano.

Esa última comprobación es la razón por la que un sandbox simple no ve nada. Detona el paquete por sí solo, sin el PoC completo a su alrededor, y el malware permanece inactivo.

Lo que roba y hace

Una vez en ejecución, ChocoPoC es un troyano de acceso remoto completo. Extrae contraseñas guardadas, cookies, autocompletar e historial de Chrome, Brave, Edge y Firefox. Toma archivos de texto, notas y bases de datos locales, junto con el historial del shell, la configuración de red y la lista de procesos en ejecución.

El atacante también puede ejecutar cualquier comando de shell, ejecutar Python arbitrario, extraer carpetas enteras y ralentizar el malware para permanecer en silencio. Varios nombres de comandos están en español y el código contiene pequeños errores, que los investigadores interpretan como escritos a mano en lugar de generados por IA.

Para controlarlo, el malware se esconde a simple vista. Lee sus órdenes de un conjunto de datos en Mapbox, un servicio de mapas normal, y lo utiliza como punto muerto. Resuelve esa dirección a través de DNS sobre HTTPS y utiliza un truco de dominio frontal, por lo que el tráfico parece llamadas API de Mapbox normales. Las cargas más grandes van a un servidor separado en 91.132.163.78.

¿Hasta dónde se ha extendido?

YesWeHack y Sekoia encontraron al menos siete repositorios PoC falsos, cada uno vinculado a una falla de alto perfil:

  • Recorrido de ruta FortiWeb (CVE-2025-64446)
  • React2Shell (CVE-2025-55182)
  • MongoBleed (CVE-2025-14847)
  • Omisión de autenticación PAN-OS (CVE-2026-0257)
  • Inyección de comando Ivanti Sentry (CVE-2026-10520)
  • Omisión de autenticación de VPN de Check Point (CVE-2026-50751)
  • Generador de páginas Joomla SP RCE (CVE-2026-48908)

Solo el paquete skytext se descargó unas 2.400 veces, principalmente en Linux. Las descargas no prueban que alguien estuviera infectado, pero aumentaron justo después de que los principales CVE se hicieran públicos, lo que encaja con el atractivo.

Una ejecución anterior de la misma campaña, que se remonta a finales de 2025, utilizó otros dos paquetes, slogsec y logcrypt.cryptography, con un código casi idéntico. Sekoia evalúa con alta confianza que un actor está detrás de ambos, basándose en marcadores de control reutilizados.

Dice que el operador rotó cuentas de GitHub, PyPI y Mapbox, varias de ellas creadas a partir de inicios de sesión filtrados o robados. No se ha nombrado ningún grupo conocido.

Los investigadores de seguridad son un objetivo rico. Ejecutan código no confiable por diseño, a menudo con altos privilegios, y sus máquinas contienen credenciales de clientes, informes privados y detalles de interacciones en vivo. Si compromete uno, podrá llegar mucho más allá de una sola computadora portátil.

La campaña MUT-1244 mostró la recompensa, utilizando repositorios PoC falsos para robar claves SSH y credenciales de nube de investigadores y equipos rojos.

Ciberseguridad

Esta no es una idea nueva, sólo un nuevo envoltorio. El grupo Lazarus de Corea del Norte ha cortejado a investigadores durante años, hacerse pasar por compañeros cazadores de errores y enviar proyectos maliciosos de Visual Studio en 2021y luego les quemará un día cero en 2023, con nuevas oleadas desde entonces.

En lo que respecta a los delitos contra las materias primas, Trend Micro encontró un PoC falso para una falla LDAP de Windows (CVE-2024-49113) que robó datos del investigador a principios de 2025, y una campaña separada impulsó PoC CVE falsos que llevaban un troyano llamado WebRAT a finales de 2025, afectando principalmente a estudiantes y evaluadores junior.

Lo que añade ChocoPoC es el escondite. El malware vive en una dependencia, por lo que la prueba de concepto que lees permanece limpia. Como lo expresaron los investigadores, el malware en sí es una noticia vieja, pero «lo que está cambiando es el mecanismo de entrega».

Que hacer ahora

  • Trate cualquier PoC como hostil hasta que se demuestre lo contrario y manténgase alejado del código de cuentas nuevas o desconocidas.
  • Lea la cadena de dependencia completa, no solo el archivo PoC. Esté atento a paquetes recién publicados, mantenedores desconocidos y cuentas con historial oculto.
  • Pruebe solo en una máquina virtual desechable, pero recuerde que el aislamiento por sí solo no activará esta. La verdadera solución es no instalar ningún paquete.
  • Verifique sus sistemas en busca de frint, skytext, slogsec y logcrypt.cryptography, además de los hashes de archivos en el informe. Si ejecutó alguno de ellos, rote las credenciales y reconstruya el host.

El mayor riesgo está aguas abajo. Estos señuelos se dirigen a los investigadores que proporcionan detecciones y PoC a marcos como Nuclei y MDUT. Sekoia señala el peligro de un doble impacto en la cadena de suministro: si se envenena a un investigador, el código incorrecto puede trasladarse a un marco en el que confían miles de personas más.

Chrome 0-Day, UniFi Exploits, macOS Stealers, VPN Flaw and More – CYBERDEFENSA.MX

Stuff broke again. Not in a movie way. An old tool was left exposed. An abandoned package was abused. A deprecated feature was still running in prod.

This week is the same lesson in a new form: phishing kits are easier to rent, AI names are useful bait, old login paths still fail, and forgotten software keeps becoming someone else’s entry point.

Scroll through the full Monday Cybersecurity Recap below for the news, tools, webinars, and fixes worth your time this week.

⚡ Threat of the Week

Google Patches Actively Exploited Chrome 0-Day – Google released security updates to address 74 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-11645 (CVSS score: 8.8), has been described as an out-of-bounds memory access in V8, Chrome’s JavaScript and WebAssembly engine. Google acknowledged that an «exploit for CVE-2026-11645 exists in the wild,» but stopped short of sharing additional specifics to ensure that a majority of the users are updated with a fix and to prevent further exploitation. Google has addressed a total of five actively exploited Chrome zero-days since the start of the year. This includes CVE-2026-2441, CVE-2026-3909, CVE-2026-3910, and CVE-2026-5281.

🔔 Top News

  • ShinyHunters Gang Exploits Oracle PeopleSoft Zero-Day – The ShinyHunters (aka UNC6240) extortion crew exploited an unpatched flaw in Oracle PeopleSoft (CVE-2026-35273, CVSS score: 9.8) to break into enterprise networks. The vulnerability relates to a missing authentication for a critical function that could allow an unauthenticated attacker to obtain takeover of PeopleSoft Enterprise PeopleTools. According to Google Mandiant, the exploitation activity was observed between May 27 and June 9, 2026. Following a successful compromise, the attackers have been observed conducting targeted internal reconnaissance using MeshCentral, lateral movement, and data exfiltration. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added the flaw to its Known Exploited Vulnerabilities (KEV) catalog, giving Federal Civilian Executive Branch (FCEB) agencies until June 15, 2026, to apply the fixes. The campaign has mainly targeted the higher education sector; 68% of the more than 100 notified organizations were universities and colleges. «The observed exploitation targeted PeopleSoft’s Environment Management Hub (PSEMHUB) endpoints, and data stolen during the campaign was published on the ShinyHunters Data Leak Site (DLS) on June 9, 2026,» Rapid7 said.
  • 100s of Arch Linux Packages Compromised to Push Rootkit and Stealer – Unknown threat actors have managed to compromise hundreds of legitimate-but-abandoned packages in the Arch User Repository (AUR) and modify them with preinstall scripts that download and execute a malicious npm package called atomic-lockfile. The campaign has been codenamed Atomic Arch by Sonatype. «Analysis of atomic-lockfile, the malicious dependency, found a bundled Linux payload with functionality tied to credential harvesting, stealth, anti-debugging, and potential data exfiltration,» the company said. Although the initial number of affected packages was 400, it has since risen to over 1,500. As of June 12, 2026, Arch Linux developers have deleted all the malicious commits they are aware of.
  • Outside PhaaS Enterprise Taken Down – The U.S. Federal Bureau of Investigation said it took down a number of domains linked to Outsider, a Chinese phishing-as-a-service (PhaaS) software kit behind an estimated 3,870,000 stolen credit cards and a corresponding estimated $1.9 billion in losses since July 2023. In tandem, Google said it pursuing legal action against the operators, who weaponized Gemini to «help generate fraudulent phishing pages and deploy massive SMS phishing (‘smishing’) attacks, often through text messages impersonating legitimate brands, alerting recipients of ‘brokerage account issues’ or insisting they are eligible for ‘rewards through their mobile phone carrier.» According to a complaint filed by Google, the group «built, maintains, and uses a turn-key, online software suite that enables criminals, regardless of technical skill, to publish fraudulent websites designed to rob victims and enrich themselves.» The toolkit costs $88 per week or $200 per month, offering access to more than 290 pre-built templates that mimic legitimate websites. The goal is to steal passwords and corresponding multi-factor authentication codes, as well as financial information in real-time. «Part of the Outsider software’s appeal is the ease with which someone with limited technical expertise -like many members of the Enterprise – can purchase the software, execute various phishing attacks, and, upon purchase, meet other members of the Enterprise who are proficient in other areas,» the tech giant added.
  • Critical Check Point VPN Flaw Exploited in Limited Attacks – Check Point warned of active exploitation of a critical vulnerability CVE-2026-50751 (CVSS score: 9.3) impacting Remote Access VPN and Mobile Access deployments that are configured to use the deprecated IKEv1 key exchange protocol. The security flaw is a case of a logic flow weakness in certificate validation that allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password. The Israeli cybersecurity company said it first observed indications of suspicious activity on June 4, 2026, with the earliest observed exploitation dating back to May 7, 2026. Exploitation efforts are said to have ramped up starting this month. The exploitation activity, Check Point added, has been limited to a «few dozen targeted organizations globally.» In one case, the post-exploitation phase has been associated with a Qilin ransomware affiliate.
  • The Gentlemen Ransomware Claims 478 Victims – A new analysis of The Gentlemen operation revealed that the financially motivated threat group initially operated as an affiliate responsible for conducting double extortion attacks, while leveraging resources from various ransomware-as-a-service (RaaS) schemes like LockBit (aka Tenacious Mantis), Qilin (aka Pestilent Mantis), and Medusa (aka Venomous Mantis). The group, which it tracks as Phantom Mantis, is led by a Russian-speaking cybercriminal it calls LARVA-368, who goes by the online aliases hastalamuerte, ArmCorp, zeta88, nobody0, and santamuerte. The Gentlemen is known to be active since March 2025, claiming a total of 478 victims to date. Microsoft, which is tracking the cluster under the moniker Storm-2697, said the operation «initially started as a closed ransomware group then began offering its RaaS to affiliates in September 2025.»

‎🔥 Trending CVEs

Bugs drop weekly, and the gap between a patch and an exploit is shrinking fast. These are the heavy hitters for the week: high-severity, widely used, or already being poked at in the wild.

Check the list, patch what you have, and hit the ones marked urgent first – CVE-2026-11645 (Google Chrome), CVE-2026-50751 (Check Point Remote Access VPN and Mobile Access), CVE-2026-35273 (Oracle PeopleSoft), CVE-2026-5027 (Langflow), CVE-2026-44963 (Veeam Backup & Replication), CVE-2026-23111 (Linux kernel), CVE-2026-45447 (OpenSSL), CVE-2026-44748, CVE-2026-27671 (SAP NetWeaver AS ABAP and ABAP Platform), CVE-2026-22732 (SAP Commerce Cloud and SAP Data Hub), CVE-2026-40128 (SAP NetWeaver Application Server Java Web Container), CVE-2026-10520 (Ivanti Sentry), CVE-2026-28252, CVE-2026-28253, CVE-2026-28254, CVE-2026-28255, CVE-2026-28256 (Trane Tracer SC+ HVAC controller), CVE-2025-46412, CVE-2025-41426 (Vertiv Liebert IS-UNITY-DP network cards), CVE-2026-0274 (Palo Alto Networks Cortex XSOAR and Cortex XSIAM), CVE-2026-20253 (Splunk Enterprise), CVE-2026-9648 (Haskell TLS software stack), from CVE-2026-12007 through CVE-2026-12011 (Google Chrome), CVE-2026-45034 (PhpSpreadsheet), PTT-2026-004, PTT-2026-005, an authentication bypass vulnerability (phpBB), and a maximum-severity code injection vulnerability in Wazuh (no CVE).

🎥 Expert Webinars

  • Find Out What Your Automated Pentest Is Missing Before Attackers Do → Automated pentesting is useful. It is also easy to overread. A tool that proves an exploit path worked does not prove your SIEM saw it, your EDR reacted, or your team could respond before damage spread. This webinar cuts through that gap: what automated pentesting actually validates, why repeat runs start returning fewer useful findings, and how BAS helps show which controls failed, not just which vulnerabilities exist.
  • Stop AI-Speed Attacks Before Your Legacy Controls Catch UpAI has changed the pace of cyberattacks. Lures get sharper, campaigns adapt faster, and attackers can test what works before defenders finish investigating. This webinar breaks down how AI-powered threats like Mythos get in, move, and scale, then shows how to fight back with tighter access, reduced attack surface, blocked lateral movement, and in-line controls that stop risky behavior before it becomes an incident.
  • Stop Employees From Leaking Source Code, Contracts, and PII Into AI Tools → Employees are already pasting company data into AI tools. Source code, contracts, customer records, and internal notes can leave the business through one prompt. This webinar shows how to move from after-the-fact detection to real-time prevention, with browser-level controls that stop risky AI use at the point where data is about to leak.

📰 Around the Cyber World

  • Campaigns Use AI Brands as Lures – Microsoft warned of campaigns capitalizing on the global interest around artificial intelligence (AI) as a social engineering lure in campaigns. «These campaigns, which don’t represent compromise of services, span phishing, malvertising, and search engine optimization (SEO)-driven attacks that ultimately lead to credential theft, financial fraud, or malware infection,» the company said. Some of the campaigns include a ChatGPT-themed lure that leads to a phishing kit collecting credit card data, a Claude-themed phishing campaign collecting credentials and access tokens, an «Awesome AI Windows Plugin» malvertising campaign deploying Vidar Stealer, and Fake DeepSeek V4 installers on GitHub delivering Vidar Stealer. The tech giant said it «observed the initial access broker Storm-3075 employing AI-themed malvertising to deliver payloads, including malware signed by the malware-signing-as-a-service (MSaaS) offering attributed to the financially motivated threat actor Fox Tempest, on behalf of multiple downstream actors.»
  • macOS Users Targeted by Fake Installers – Deceptive installers for popular software are being used to push information stealers to macOS users. «The infection chain almost always starts inside a web browser,» Huntress said. «Threat actors lean heavily on search engine optimization (SEO) poisoning to hijack search results, or they seed compromised links across torrent networks and cracked software forums. A user drops their guard, clicks the malicious link, and downloads what they assume is an authentic installer.» The DMG files, once executed, aim to bypass Apple Gatekeeper protections to realize their goals. In 2024, more than 65% of newly reported macOS malware was classified as infostealers.
  • History of Chinese-Language Guarantee Marketplaces – Flare has shed light on the «guarantee model» that powers various illicit online Telegram marketplaces like HuiOne Guarantee and Tudou Guarantee. «These marketplaces are third-party escrow services for illicit transactions,» security researcher Chris d’Eon explained. «The marketplace operator stands between buyer and seller, holds the buyer’s funds in escrow, releases them to the seller only when the buyer confirms delivery, and adjudicates disputes when something goes wrong. In return, the operator collects deposits from vendors who want to advertise under its brand, fees on transactions, and revenue from paid promotional slots.» The model, which has its roots in legitimate Chinese consumer-internet trust architecture launched by Alipay in 2003, facilitates the sale of money laundering services, stolen data, fraud kits, fake identity documents, recruitment for scam compounds, retail fraud, deepfake services, and the physical infrastructure that drives human trafficking and forced-labour compounds. Law enforcement crackdown has led to «fragmentation but not elimination» of the criminal enterprise. More than 30 successor marketplaces have emerged following the takedown of HuiOne and Xinbi, almost all of them managing their operations via Telegram owing to its reach, bot infrastructure, and improved resilience despite the platform’s efforts to crack down on such activities. These include Tiancheng, Dabai, Ouyi, Yinuo, Jin Bo, Haihua, Timi, and Lao Niu.
  • UniFi OS Flaws Exploited – The UniFi OS Server remote code execution chain, comprising CVE-2026-34908, CVE-2026-34909, and CVE-2026-34910, is now being actively exploited, according to Defused Cyber, following a report from Bishop Fox about how the three flaws could be combined to achieve unauthenticated code execution as root. The attacks culminated in the deployment of commodity malware.
  • Khmer Shadow Targets Cambodian Government Entities – A targeted cyber espionage campaign against Cambodian government entities has leveraged a meeting-themed SFX archive to sideload a custom C++ loader dubbed NIGHTFORGE, which then decrypts and executes a Havoc Demon payload in memory. «NIGHTFORGE has demonstrated a moderate level of sophistication, combining advanced defense-evasion techniques such as NTDLL unhooking and Hell’s Gate syscall resolution, a method that enables direct system calls and helps evade user-mode monitoring, with operational shortcomings that suggest the tool is still under active development,» Acronis said. The activity has been attributed to any known threat group, but it’s «likely aligned with regional intelligence collection interests in Southeast Asia.»
  • How Attackers Could Exploit Cloud Logging Services – Palo Alto Networks Unit 42 has warned that threat actors could exploit cloud logging services, which are crucial for security monitoring, to «create weak spots, evade detection, and in certain scenarios, establish continuous visibility within a target’s environment.» Attackers could tamper with resources within the cloud logging service (e.g., disabling, altering, or deleting logs, or even impairing logging) to hide their presence or attempt to route logs to their own accounts, establishing continuous visibility over the victim’s environment, performing continuous discovery, and passively monitoring all activity.
  • Operation TaxShadow Delivers Multi-Stage Malware Framework – An Indian tax-themed phishing campaign has been observed delivering a sophisticated multi-stage malware framework through a mix of social engineering, phishing infrastructure, and memory-resident malware execution techniques. «The campaign begins with a fraudulent tax notification email impersonating an official Indian tax authority, leveraging government branding, urgency-based messaging, and compliance-related threats to manipulate victims into interacting with a malicious phishing website,» CYFIRMA said. «Victims are subsequently instructed to download a malicious ZIP archive containing three staged payload components: कर विवरण.exe, SbieDll.dll, and SbieDll.bin, which collectively establish the complete infection lifecycle.» The attack makes use of a highly modular malware architecture, coupled with advanced defense-evasion and anti-analysis techniques, to launch a payload in memory. The malware also establishes persistent WebSocket-based communications.
  • MagicAd Displays Background Ads on Android Devices – A new Android trojan called MagicAd has been found to bypass operating system restrictions to display background ads. «One of these methods is universal, while the others are designed for devices from specific manufacturers,» Russian cybersecurity company Doctor Web said. «These include exploiting third-party software and using the system media player.» The malware is distributed via apps on GetApps, the official app catalog for Xiaomi devices. It has been discovered in more than 50 games and apps. The campaign is assessed to have commenced in 2025, with the threat actors behind it also leveraging the Samsung Galaxy Store as a distribution mechanism. Currently, none of the apps are available for download.
  • Residential Proxies in the Wild – Residential proxies are designed to relay internet traffic through devices that belong to regular consumers, such as home routers, mobile devices, IoT devices, and devices with applications embedded with proxyware. One way this is achieved is that application developers themselves can embed software development kits (SDKs) provided by the residential proxy networks into their products as a way to monetize their software, allowing them to receive a small amount of money on each installation. In an analysis published last week, Infoblox said monthly queries to residential proxy domains steadily grew from nearly 400 billion to over 500 billion between January 2025 and April 2026 across its customer base, an increase of about 25%. «There are likely several explanations for this: certainly, the rise in AI-related training, which often requires scraping websites, is a major driver of residential proxy demand,» it said. «Residential proxies bypass many anti-scraping measures, as the traffic appears to be coming from the devices of real people.» Some of the most commonly observed proxy services queried include Bright Data, Hola VPN, Oxylabs Proxy, Honeygain, and Grass. The DNS threat intelligence firm said many residential proxy services operate in a grey space.
  • SHEET#CREEP Drops C# Remote Access Trojan – An ongoing cyber espionage campaign dubbed SHEET#CREEP has leveraged a diplomatic-themed ISO phishing lure to distribute a C# remote access trojan (RAT). The activity was previously flagged by Zscaler and Bitdefender, attributing it to a threat actor known as Transparent Tribe. «The RAT abuses the Google Sheets API as its command-and-control (C2) channel, authenticating via an embedded GCP service account private key and using individual spreadsheet tabs per victim for bidirectional communication,» Securonix researchers Shikha Sangwan, Akshay Gaikwad, and Aaron Beardslee said. «The LNK triggers a C# dropper that extracts a bait PDF, drops the RAT payload into the Windows Vault directory, and establishes persistence through a scheduled task, before melting (self-deleting) to remove forensic traces.» The cybersecurity company said it identified 91 active victim tabs in the C2 spreadsheet, including a high-confidence target located in Pakistan.
  • Malware Distributed via npm and PyPI Packages – A cryptocurrency-focused software supply chain campaign has used malicious npm packages to facilitate credential harvesting, wallet theft, remote payload delivery, and blockchain-based command-and-control. «Technical analysis uncovered capabilities including cryptocurrency wallet interception, private key and mnemonic phrase theft, SSH credential harvesting, environment variable collection, sensitive file discovery, remote activation mechanisms, blockchain-based infrastructure retrieval, and multi-stage malware deployment,» CYFIRMA said. A second campaign, codenamed Solana FakeFix, has targeted Solana developers with 20 bogus npm and PyPI packages to steal wallet keys, cloud credentials, source-control tokens, SSH keys, and environment secrets, while a third campaign, CMS Windows Loader, has used five npm packages to load remote executables and JavaScript code dynamically. In a related development, two versions of the dbmux npm package (2.2.5 and 1.0.5) were flagged for containing malware. «Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer,» according to a GitHub advisory. «The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.»
  • Ransomware Attack Uses Easyupload.io for Data Exfiltration – In one ransomware attack investigated by Huntress, a threat actor accessed the victim’s hypervisor and created a new virtual machine (VM) as a staging location from which they launched the Akira ransomware. The threat actor rapidly progressed through the attack, disabling Microsoft Defender and installing WinRAR, an archival tool typically used by threat actors for staging data. «The threat actor used the Microsoft Edge browser to access Bing, and search for the term ‘eayupload’ before settling on Easyupload.io, a website that provides access to file uploads via drag-and-drop,» the cybersecurity company said. «Shortly after accessing the LimeWire website, presumably to exfiltrate staged archives, the threat actor launched the akira.exe file encryptor against several mounted shares.»

🔧 Cybersecurity Tools

  • SpooNMAP → It is a Python tool that wraps Nmap and Masscan to make port scanning easier and faster. It guides users through scan options, supports small, medium, large, full, and custom scans, can grab service banners with Nmap, and lets users scan target IPs or CIDR ranges from a file.
  • CVE MCP Server → It connects Claude to 27 security intelligence tools across 21 data sources, helping analysts look up CVEs, check EPSS and CISA KEV status, find PoCs, scan dependencies, review IP reputation, and generate risk reports from one place.

Disclaimer: This is strictly for research and learning. It hasn’t been through a formal security audit, so don’t just blindly drop it into production. Read the code, break it in a sandbox first, and make sure whatever you’re doing stays on the right side of the law.

Conclusion

This week’s lesson is simple: attackers do not need magic. They need old code, busy teams, weak defaults, and one forgotten box nobody wants to claim.

That is the uncomfortable part. The next big incident may already be sitting in your stack, quietly working as designed.

La falla del kernel de Linux de un carácter permite el acceso raíz local, los exploits ahora son públicos – CYBERDEFENSA.MX

Investigadores de seguridad han publicado un exploit detallado y funcional para un kernel de Linux de uso libre que permite a un usuario local sin privilegios escalar a root y salir de un contenedor.

La falla, CVE-2026-23111, se encuentra en el código de filtrado de paquetes nf_tables del kernel y fue parcheado aguas arriba el 5 de febrero de 2026. Exodus Intelligence lanzó su tutorial técnico completo el 8 de junio, y ni siquiera es el primer exploit público: FuzzingLabs publicó un reproducción independiente allá por abril.

La falla se redujo a un solo carácter perdido, una marca invertida en nf_tables, y la solución ascendente lo eliminó en una línea. Ubuntu califica el defecto CVSS 7.8 (alto). Si el paquete del kernel de su distribución aún no incluye la solución, actualice y reinicie.

La configuración accesible es común: nf_tables más espacios de nombres de usuario sin privilegios, una característica de Linux que permite que una cuenta normal actúe como root dentro de una zona de pruebas privada y acceda al código del kernel que de otro modo no podría.

Ambos se envían de forma predeterminada en la mayoría de las computadoras de escritorio y en muchas versiones de servidores. No existe un vector remoto por sí solo. Este es un error que un atacante aprovecha después de establecerse, convertir un shell con pocos privilegios, un contenedor comprometido o una cuenta de servicio en root en el host.

Ciberseguridad

El investigador de Exodus, Oliver Sieber, que encontró el error a principios de 2025, lo encadenó a una raíz local completa. El exploit activa el uso después de la liberación, evita las protecciones de memoria integradas del kernel y luego toma el control de la ejecución para otorgarse root y salir del espacio de nombres del contenedor.

Lo demostró en Debian Bookworm, Debian Trixie, Ubuntu 22.04 LTS y Ubuntu 24.04 LTS.

FuzzingLabs reprodujo el error en RHEL 10 antes de Pwn2Own Berlin 2026, creando su propio exploit raíz por una ruta diferente. El cronograma es ajustado: la solución se envió el 5 de febrero, FuzzingLabs se publicó el 16 de abril y el artículo detallado de Exodus llegó el 8 de junio.

La técnica ahora está documentada en Debian, Ubuntu y Red Hat. Debido a que el error está en la línea principal, cualquier distribución que envíe un kernel vulnerable con ambas características habilitadas está expuesta, a menos que el endurecimiento o las restricciones de espacio de nombres de una distribución bloqueen la ruta.

CVE-2026-23111 aparece en medio de una gran cantidad de divulgaciones de raíz local de Linux. Las últimas semanas han traído Copy Fail, la cadena Dirty Frag, su variante Fragnesia, DirtyDecrypt, y una falla de ptrace de nueve años que lee /etc/shadow y ejecuta comandos como root.

Difieren en los detalles, pero comparten la parte que debería preocupar a los defensores: un punto de apoyo sin privilegios sigue convirtiéndose en root en instalaciones normales.

Actualice el kernel y reinicie. El error es solo local y necesita espacios de nombres de usuario sin privilegios, así que concéntrese primero en los sistemas que permiten que los usuarios o cargas de trabajo que no son de confianza los creen.

Ciberseguridad

Ubuntu tiene correcciones para 22.04, 24.04 y 25.10, y Debian corrigió Bookworm y Trixie, con un backport 6.1 para Bullseye LTS. Red Hat, SUSE y Amazon Linux también rastrean la falla; Consulte el aviso de su distribución para encontrar el paquete del kernel que coincida con el suyo, ya que la versión fija exacta varía. La solución inicial fue una sola línea de código.

Hay un panorama más amplio. en un revisión reciente del aumento de LPESynacktiv vincula el ritmo con la investigación asistida por IA y la diferenciación de parches que eliminan los exploits funcionales antes de que se propaguen las correcciones, y argumenta que el endurecimiento ordinario aún les da tiempo a los defensores.

La mayoría de estos errores se basan en características opcionales del kernel o valores predeterminados flexibles, por lo que cortar lo que los usuarios sin privilegios pueden alcanzar, en este caso los espacios de nombres de usuario, retrasa el exploit hasta que se implementa el parche.

No hay informes públicos de explotación en la naturaleza y ningún actor de amenazas ha sido vinculado a ella. El parche ha estado disponible desde febrero y el código de explotación es público desde abril.

Los atacantes atacaron con fuerza las vulnerabilidades el año pasado, lo que convirtió a los exploits en el principal punto de entrada para las infracciones.

Los atacantes no se cansaron de las vulnerabilidades a su disposición el año pasado, lo que convirtió a los exploits en el principal vector de acceso inicial en más de 22.000 infracciones que Verizon analizó en su último informe. Informe de investigaciones de vulneración de datos lanzado el martes.

El enorme estudio anual descubrió una oleada de vulnerabilidades explotadas durante un período de un año que finalizó en octubre de 2025. Los defectos explotados representaron el 31% de todos los vectores de acceso inicial conocidos, frente al 20% del año anterior.

El aumento de las vulnerabilidades explotadas es un reflejo de la “causa sísifo” de la gestión de vulnerabilidades, escribieron los investigadores en el informe. «En pocas palabras, a menudo hay demasiadas vulnerabilidades y no hay tiempo suficiente para parchearlas todas».

Las organizaciones están luchando por mantenerse al día con el torrente de vulnerabilidades que afectan la tecnología en todos sus sistemas. Esta caída es especialmente preocupante, y está en declive, entre los defectos del catálogo de vulnerabilidades explotadas conocidas de la Agencia de Seguridad de Infraestructura y Ciberseguridad.

Solo el 26% de las vulnerabilidades críticas en el catálogo de CISA fueron remediadas por completo por más de 13.000 organizaciones que Verizon estudió en 2025, lo que representa una caída con respecto al 38% del año anterior.

«También hay un peor resultado para el tiempo medio transcurrido hasta que una vulnerabilidad se repara por completo mediante la detección», escribieron los investigadores en el informe. «Nuestra nueva mediana de tiempo es de 43 días, casi dos semanas más que los 32 días del año pasado».

Verizon también señaló que el número medio de vulnerabilidades KEV que las organizaciones tuvieron que parchear aumentó de 11 en 2024 a 16 en 2025.

El catálogo KEV de CISA contenía más de 1.500 CVE a febrero y el 65% de ellos fueron explotados durante el año anterior, según el informe.

Verizon identificó las cinco debilidades más comunes de CISA KEV CVE en su informe: lectura fuera de límites, desbordamiento del búfer basado en montón, uso después de la liberación, control externo del nombre o ruta del archivo y acceso al recurso mediante un tipo incompatible.

Las motivaciones de los atacantes se mantuvieron relativamente constantes el año pasado: los ciberdelincuentes con motivaciones financieras representaron el 88% de todas las infracciones. El resto fueron ataques impulsados ​​por espionaje por parte de grupos afiliados al Estado.

«El ransomware sigue estando entre los tipos de infracciones más perturbadores e impactantes que vemos. Al igual que el precio de todo, desde comida rápida hasta bebidas para adultos en los estadios, continúa con una tendencia al alza», escribieron los investigadores en el informe.

El ransomware representó el 48% de todas las infracciones el año pasado, frente al 44% en 2024. Sin embargo, Verizon también observó algunas tendencias positivas en el ransomware.

Los pagos de rescate continuaron disminuyendo, y el 69% de las víctimas informaron que no pagaron, y el pago medio cayó de 150.000 dólares en 2024 a casi 140.000 dólares el año pasado.

El seguimiento del ransomware sigue siendo un desafío para los investigadores y las autoridades.

«Existe una desconexión cada vez mayor entre lo que se informa y la realidad de lo que ha ocurrido, en gran parte debido a que los actores de amenazas reutilizan filtraciones antiguas, vuelven a publicar filtraciones de otros socios criminales e inventan filtraciones de la nada para ayudar a aumentar su notoriedad en el mundo criminal», escribió Verizon en el informe. «Estamos empezando a pensar que estos ciberdelincuentes podrían no ser del todo dignos de confianza».

Sin embargo, a pesar de la falta de datos indiscutibles sobre la actividad del ransomware, los investigadores concluyeron: «El ransomware sigue siendo el pantalón de yoga de la ciberseguridad: ubicuo, obstinadamente popular y aparece en lugares inesperados cerca de usted».

Matt Kapko

Escrito por Matt Kapko

Matt Kapko es reportero de CyberScoop. Su ámbito incluye delitos cibernéticos, ransomware, defectos de software y (mala) gestión de vulnerabilidades. El californiano de toda la vida comenzó su carrera periodística en 2001 con paradas anteriores en Cybersecurity Dive, CIO, SDxCentral y RCR Wireless News. Matt tiene una licenciatura en periodismo e historia de la Universidad Estatal de Humboldt.

Axios Hack, Chrome 0-Day, Fortinet Exploits, Paragon Spyware and More – CYBERDEFENSA.MX

This week had real hits. The key software got tampered with. Active bugs showed up in the tools people use every day. Some attacks didn’t even need much effort because the path was already there.

One weak spot now spreads wider than before. What starts small can reach a lot of systems fast. New bugs, faster use, less time to react.

That’s this week. Read through it.

⚡ Threat of the Week

Axios npm Package Compromised by N. Korean Hackers—Threat actors with ties to North Korea seized control of the npm account belonging to the lead maintainer of Axios, a popular npm package with nearly 100 million weekly downloads, to push malicious versions containing a cross-platform malware dubbed WAVESHAPER.V2. The activity has been attributed to a financially motivated threat actor known as UNC1069. The incident demonstrates how quickly the compromise of a popular npm package can have ripple effects through the ecosystem. The malware’s self-deleting anti-forensic cleanup points to a deliberate, planned operation. «The build pipeline is becoming the new front line. Attackers know that if they can compromise the systems that build and distribute software, they can inherit trust at scale,» Avital Harel, Security Researcher at Upwind, said. «That’s what makes these attacks so dangerous — they’re not just targeting one application, they’re targeting the process behind many of them. Organizations should be looking much more closely at CI/CD systems, package dependencies, and developer environments, because that’s increasingly where attackers are placing their bets.» Ismael Valenzuela, vice president of Labs, Threat Research, and Intelligence at Arctic Wolf, said the Axios npm compromise reflects a broader trend where attackers infiltrate trusted, widely used software components to obtain access to downstream customers at scale. «Even though the malicious versions were available for only a few hours, Axios is so deeply embedded across enterprise applications that organizations may have unknowingly pulled the compromised code into their environments through build pipelines or downstream dependencies,» Valenzuela added. «That downstream exposure is what makes these incidents particularly difficult to spot and contain, especially for teams that never directly chose to install Axios themselves. This incident reinforces that security teams need to treat build‑time tools and dependencies as part of the attack surface and not just trust tools by default.»

🔔 Top News

  • Google Patches Actively Exploited Chrome 0-Day—Google released security updates for its Chrome web browser to address 21 vulnerabilities, including a zero-day flaw that it said has been exploited in the wild. The high-severity vulnerability, CVE-2026-5281 (CVSS score: N/A), concerns a use-after-free bug in Dawn, an open-source and cross-platform implementation of the WebGPU standard. Users are advised to update their Chrome browser to versions 146.0.7680.177/178 for Windows and Apple macOS, and 146.0.7680.177 for Linux. Google did not reveal how the vulnerability is being exploited and who is behind the exploitation effort.
  • TrueConf 0-Day Exploited in Attacks Targeting Government Entities in Southeast Asia—Chinese hackers have exploited a zero-day vulnerability in the TrueConf video conferencing software in attacks against government entities in Southeast Asia. The exploited flaw, tracked as CVE-2026-3502 (CVSS score of 7.8), exists because of a lack of integrity checks when fetching application update code, allowing an attacker to distribute a tampered update. «The compromised TrueConf on-premises server was operated by the governmental IT department and served as a video conferencing platform for dozens of government entities across the country, which were all supplied with the same malicious update,» Check Point said. The activity, which began in January 2026, involved the deployment of the Havoc framework. Most infections likely began with a link sent to the victims. TrueConf is used widely across organizations in Asia, Europe, and the Americas, serving about 100,000 organizations globally.
  • Fortinet FortiClient EMS Flaw Under Attack—Fortinet released out-of-band patches for a critical security flaw impacting FortiClient EMS (CVE-2026-35616) that it said has been exploited in the wild. The vulnerability has been described as a pre-authentication API access bypass leading to privilege escalation. Exploitation efforts against CVE-2026-35616 were first recorded against its honeypots on March 31, 2026, per watchTowr. The development comes days after another recently patched, critical vulnerability in FortiClient EMS (CVE-2026-21643) came under active exploitation.
  • Apple Backports DarkSword Fixes to More Devices—Apple expanded the availability of iOS 18.7.7 and iPadOS 18.7.7 to a broader range of devices to protect users from the risk posed by a recently disclosed exploit kit known as DarkSword. The update targets customers whose devices are capable of upgrading to the newest operating system (iOS 26), but have chosen to remain on iOS 18. Apple has taken the unprecedented step to counter risks posed by an exploit kit called DarkSword. The broader availability of the patches underscores the level of threat that malware like DarkSword poses. The fact that a large number of users were still using iOS 18, combined with the leak of a new version of DarkSword on GitHub, has pushed Apple towards releasing the fix so that they can stay protected without the need for updating to iOS 26. The leak is significant as it puts it within reach of less technically savvy cybercriminals out there.
  • ClickFix Attack Leads to DeepLoad Malware—The ClickFix technique is being used to deliver a stealthy malware named DeepLoad that’s capable of stealing credentials and intercepting browser interactions. The malware first emerged on a dark web cybercrime forum in early February 2026, when a threat actor, using the alias «MysteryHack,» advertised it as a «centralized panel for multiple types of malware.» According to ZeroFox, «DeepLoad’s design is explicitly focused on actively facilitating real-time cryptocurrency theft, which almost certainly makes it an attractive malware suite in the cybercrime-as-a-service (CaaS) environment.» The malware has since been distributed to Windows systems through ClickFix under the guise of resolving fake browser error messages. Besides stealing credentials, the malware drops a rogue browser extension to intercept sensitive data and spreads via removable USB drives. DeepLoad’s actual attack logic is buried under layers of obfuscation, raising the possibility that some parts of the malware were developed using an artificial intelligence (AI) model.
  • Claude Code Source Code Leaks—Anthropic acknowledged that internal code for its popular artificial intelligence (AI) coding assistant, Claude Code, had been inadvertently released due to a human error. Essentially, what happened was this: When Anthropic pushed out version 2.1.88 of its Claude Code npm package, it accidentally included a map file that exposed nearly 2,000 source code files and more than 512,000 lines of code. The source code leak has since revealed various features the company appears to be working on or that are built into the service, including an Undercover mode to hide AI authorship from contributions to public code repositories, a persistent background agent called KAIROS, combat distillation attacks, and active monitoring of words and phrases that show signs of user frustration. The leak also quickly escalated into a cybersecurity threat, as attackers pounced on the surge in interest to lure developers into downloading stealer malware.

🔥 Trending CVEs

New vulnerabilities show up every week, and the window between disclosure and exploitation keeps getting shorter. The flaws below are this week’s most critical — high-severity, widely used software, or already drawing attention from the security community.

Check these first, patch what applies, and don’t wait on the ones marked urgent — CVE-2026-35616 (Fortinet FortiClient EMS), CVE-2026-20093 (Cisco Integrated Management Controller), CVE-2026-20160 (Cisco Smart Software Manager On-Prem), CVE-2026-5281 (Google Chrome), CVE-2026-3502 (TrueConf), CVE-2026-27876, CVE-2026-27880 (Grafana), CVE-2026-4789 (Kyverno), CVE-2026-2275, CVE-2026-2285, CVE-2026-2286, CVE-2026-2287 (CrewAI), CVE-2025-14819 (Notepad++), CVE-2026-34714, CVE-2026-34982 (Vim), CVE-2026-33660, CVE-2026-33696 (n8n), CVE-2026-25639 (Axios), CVE-2026-25075 (strongSwan), CVE-2026-34156 (NocoBase), CVE-2026-3308 (Artifex MuPDF), CVE-2026-1579 (PX4 Autopilot), CVE-2026-3991 (Symantec Data Loss Prevention Agent for Windows), CVE-2026-33026 (nginx-ui), CVE-2026-33416, CVE-2026-33636 (libpng), CVE-2026-3775, CVE-2026-3779 (Foxit PDF Editor), CVE-2026-34980, CVE-2026-34990 (CUPS), and CVE-2026-34121 (TP-Link).

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📰 Around the Cyber World

  • Device Code Phishing Attacks Surge —Device code phishing attacks, which abuse the OAuth device authorization grant flow to hijack accounts, have surged more than 37.5x this year. Push Security said it detected a 15x increase in device code phishing pages at the start of March 2026, indicating that the technique has finally entered mainstream adoption. «The technique tricks a user into issuing access tokens for an attacker-controlled application (not a device, confusingly),» the company said. «Any app that supports device code logins can be a target. Popular examples include Microsoft, Google, Salesforce, GitHub, and AWS. That said, Microsoft is, as always, much more heavily targeted at scale now than any other app.» This has been fueled by the emergence of EvilTokens (aka ANTIBOT), the first reported criminal PhaaS (Phishing-as-a-Service) toolkit that supports device code pushing. EvilTokens features a Cloudflare Workers frontend and a Railway backend for authentication. Early iterations of the PhaaS kit emerged in January 2026. Another closed-source PhaaS kit called Venom offers device code phishing capabilities similar to EvilTokens. Some of the other PhaaS kits that have incorporated this technique include SHAREFILE, CLURE, LINKID, AUTHOV, DOCUPOLL, FLOW_TOKEN, PAPRIKA, DCSTATUS, and DOLCE.
  • LinkedIn Comes Under Scanner for BrowserGate —A newly published report called BrowserGate alleged that Microsoft’s LinkedIn is using hidden JavaScript scripts on its website to scan visitors’ browsers for thousands of installed Google Chrome extensions and collect device data without users’ consent. «LinkedIn scans for over 200 products that directly compete with its own sales tools, including Apollo, Lusha, and ZoomInfo,» the report said. «Because LinkedIn knows each user’s employer, it can map which companies use which competitor products. It is extracting the customer lists of thousands of software companies from their users’ browsers without anyone’s knowledge. Then it uses what it finds. LinkedIn has already sent enforcement threats to users of third-party tools, using data obtained through this covert scanning to identify its targets.» The report also claimed LinkedIn loads an invisible tracking pixel from HUMAN Security, along with a separate fingerprinting script that runs from LinkedIn’s servers and a third script from Google that runs silently on every page load. In response to the findings, LinkedIn told Bleeping Computer it scans for certain extensions that scrape data without members’ consent in violation of its terms of service. The company also claimed the report is from an individual who is «subject to an account restriction for scraping and other violations of LinkedIn’s Terms of Service.»
  • ICE Confirms Use of Paragon Spyware —The U.S. Immigration and Customs Enforcement (ICE) confirmed it uses spyware developed by Paragon to «identify, disrupt, and dismantle Foreign Terrorist Organizations, addressing the escalating fentanyl epidemic and safeguarding national security.» Paragon’s Graphite spyware has been found on the phones of journalists. WhatsApp last year said it disrupted a campaign that deployed the spyware against its users. The governments of Australia, Canada, Cyprus, Denmark, Israel, and Singapore are suspected to be customers of the Israeli company.
  • Ex-Engineer Pleads Guilty to Extortion Campaign —Daniel Rhyne, 59, of Kansas City, Missouri, pleaded guilty to a failed data extortion campaign that targeted his former employer. Rhyne was arrested in September 2024. According to court documents, Rhyne worked as a core infrastructure engineer at a U.S.-based industrial company headquartered in New Jersey. In November 2023, the defendant executed a ransomware attack against the company and sent an extortion email to its employees, threatening to continue shutting down the firm’s servers unless he was paid about 20 Bitcoin, which was valued at $750,000 at the time. Last month, the U.S. Justice Department (DoJ) announced the conviction of Cameron Curry (aka Loot), a 27-year-old from Charlotte, North Carolina, for carrying out a cyber extortion scheme against a D.C.-based international technology company called Brightly Software. «Trial evidence established that Curry misused his position to access the victim company’s personnel and other sensitive corporate records, which he then used to carry out the cyber extortion scheme after he learned that his contract was not going to be renewed and that he would no longer be employed by the company,» the DoJ said. Between December 11, 2023, and January 24, 2024, Curry sent more than 60 emails to company executives and employees, stating he would disclose sensitive information unless he was paid $2.5 million in cryptocurrency. Brightly ended up paying $7,540 in Bitcoin.
  • Residential Proxies Bypass Reputation Systems —Threat intelligence firm GreyNoise’s analysis of 4 billion sessions targeting the edge over a 90-day period from November 29, 2025, to February 27, 2026, found that 39% of unique IP addresses targeting the edge originated from home internet connections, and that 78% vanish before any reputation system can flag them. «78% of residential IPs appear in only 1–2 sessions and are never observed again,» it said. «IP reputation is structurally broken against residential proxies. The rotation rate exceeds the update cycle of any feed-based defense.» This behavior also makes source IPs indistinguishable from a legitimate user’s connection. The data also showed that 0.1% of residential sessions carry exploitation payloads, in contrast to 1.0% from hosting infrastructure, indicating that they are primarily used for network scanning and reconnaissance. The residential proxy traffic is generated by IoT botnets and infected computers, with the networks also resilient against takedown efforts. «After IPIDEA lost 40% of its nodes, operators backfilled within weeks,» GreyNoise said. «Every major takedown produces the same result — temporary disruption, then regeneration.» The company also recommended that «Detection must shift from ‘where is the traffic from?’ to ‘what is the traffic doing?» Device fingerprinting provides more durable detection because fingerprints survive IP rotation.»
  • Suspected N. Korea Campaign Targets Cryptocurrency Companies Using React2Shell —A new campaign has been observed systematically compromising cryptocurrency organizations by exploiting web application vulnerabilities such as React2Shell (CVE-2025-55182), pillaging AWS tenants with valid credentials, and exfiltrating proprietary exchange software containing hardcoded secrets. «Their targeting spans the crypto supply chain, from staking platforms, to exchange software providers, to the exchanges themselves,» Ctrl-Alt-Intel said. The threat intelligence firm has assessed the activity with moderate confidence to be aligned with North Korean cryptocurrency theft operations.
  • India Extends SIM-Binding Mandate —The Indian government has extended its SIM-binding mandate through December 31, 2026, while shelving plans to require messaging apps to forcibly log out web-based sessions like WhatsApp Web every six hours. The decision comes after the Broadband India Forum, which represents Meta and Google, warned the Department of Telecommunications (DoT) that the directions were unconstitutional. Under the framework announced in November 2025, a messaging app account would be tied exclusively to the physical SIM card during registration. This meant that the users could access the messages and other content only when that SIM is present in the device. Companies were given 90 days (i.e., until the end of February 2026) to comply. While SIM binding has been proposed as a way to combat spammers and conduct cross‑border fraud, the move has raised feasibility and user experience concerns. According to Moneycontrol, WhatsApp is said to be beta testing SIM binding on Android.
  • Russian Threat Actors Looking to Regain Access Through Compromised Infrastructure —Russian threat actors like APT28 and Void Blizzard are attempting to regain access to computer systems they previously compromised to check if access is still available and whether the obtained credentials remain valid, CERT-UA has warned. «Unfortunately, these attempts sometimes succeed if the root cause of the initial incident has not been completely eliminated,» the agency said.
  • OkCupid Settles with FTC for Privacy Violations —OkCupid and its owner, Match Group, reached a settlement with the U.S. Federal Trade Commission over allegations that it did not inform its customers that nearly three million user photos were shared with Clarifai, a company that develops AI systems to identify and analyze images and videos. The complaint also accused the dating site of sharing users’ location information and other details without their consent. As part of the settlement, OkCupid and Match did not admit or deny the allegations but agreed to a permanent prohibition that prevents them from misrepresenting how they use and share personal data.
  • New Android Malware Mirax Advertised —A sophisticated new Android banking trojan named Mirax is being advertised as a private malware-as-a-service (MaaS) offering for up to $2,500 per month. The malware enables customers to gain remote control over devices and includes specialized overlays for more than 700 different financial applications to steal credentials and other sensitive information. It can also capture keystrokes, intercept SMS messages, record lock screen patterns, and use the infected device as a SOCKS5 proxy.
  • Venom Stealer Spreads via ClickFix —A new malware-as-a-service (MaaS) platform dubbed Venom Stealer is being sold on cybercrime forums as a subscription ($250/month to $1,800 for lifetime access). It’s marketed as «the Apex Predator of Wallet Extraction.» Unlike other stealers, it automates credential theft and enables continuous data exfiltration. «It builds ClickFix social engineering directly into the operator panel, automates every step after initial access, and creates a continuous exfiltration pipeline that does not end when the initial payload finishes running,» BlackFog said. The development coincides with a new ClickFix variant that replaces PowerShell with a «rundll32.exe» command to download a DLL from an attacker-controlled WebDAV resource. The attack leads to the execution of a secondary loader called SkimokKeep, which then downloads additional payloads, while incorporating anti-sandboxing and anti-debugging mechanisms. In the meantime, recent ClickFix campaigns have also leveraged searches for installation tutorials for OpenClaw, Claude, and other AI tools, as well as for common macOS issues to push stealer malware like MacSync.
  • More Information Stealers Spotted —Speaking of stealers, recent campaigns have also been observed using procurement-themed email lures and fake Homebrew install guides served via sponsored search results to deliver Phantom Stealer and SHub Stealer. Some other newly discovered infostealer malware families include Storm, MioLab, and Torg Grabber. In a related development, CyberProof said it observed a surge in PXA Stealer activity targeting global financial institutions during Q1 2026. Another malware that has gained notoriety is BlankGrabber, which is distributed through social engineering and phishing campaigns. Data gathered by Flare shows that a single stealer log can be devastating, with individual logs containing up to 1,381 pieces of personally identifiable information. In an analysis published by Whiteintel last month, the company found that a single careless download of cracked software by one employee can hand criminal groups direct access to an entire corporate network in under two days. «An employee downloads cracked software on Tuesday afternoon,» it said. «By Thursday morning, their credentials are listed on the Russian Market for $15. Corporate VPN access, AWS credentials, session tokens that bypass MFA – all packaged and ready for purchase.»
  • Phishing Campaign Targets Philippine Banking Users —An ongoing phishing campaign targeting major banks in the Philippines is using email phishing via compromised accounts as the initial vector to harvest online banking credentials and one-time passwords (OTPs) for financial fraud. According to Group-IB, the campaign began in early 2024, distributing over 900 malicious links as part of the coordinated scheme. Clicking on the link embedded in the email message triggers a redirection chain that uses trusted services like Google Business, AMP CDN, Cloudflare Workers, and URL shorteners before taking the victims to the final landing page. «The campaign enables real-time financial fraud by bypassing MFA mechanisms through the theft of valid One-Time Passwords (OTP), allowing attackers to perform unauthorized fund transfers,» the company said. «Telegram bots were used as exfiltration channels, enabling threat actors to automatically collect victims’ login information in real time.» The activity has been attributed to a threat group called PHISLES.
  • Chrome Extensions Harvests ChatGPT Conversations —A malicious Chrome extension, named «ChatGPT Ad Blocker» (ID: ipmmidjikiklckbngllogmggoofbhjikgb), found on the Chrome Web Store masquerades as an ad-blocking tool for the AI chatbot, but contains functionality to «steal the user’s ChatGPT conversations data by systematically copying the HTML page and sending to it to a webhook on a private Discord channel,» DomainTools said.
  • Iran Conflict Triggers Espionage Activity in Middle East —In the aftermath of the U.S.-Israel-Iran conflict, Proofpoint said it has recorded an increase in campaigns from state-sponsored threat actors likely affiliated with China (UNK_InnerAmbush, which uses phishing emails to deliver Cobalt Strike payload), Belarus (TA473, which has used HTML attachments in emails for reconnaissance), Pakistan (UNK_RobotDreams, which has sent spear-phishing emails to India-based offices of Middle East government entities to deliver a Rust backdoor), and Hamas (TA402, which has used compromised Iraq government email addresses to conduct Microsoft account credential harvesting) targeting Middle East government organizations. The enterprise security company said it also identified the Charming Kitten actor targeting a think tank in the U.S. to trick recipients into entering their Microsoft account credentials. One activity cluster that remains unattributed is UNK_NightOwl. The email messages include a domain that spoofed Microsoft OneDrive, leading the victim to a credential harvesting page. If the user enters credentials and clicks the sign-in button, the target is redirected to «hxxps://iran.liveuamap[.]com/,» a legitimate open-source platform called Liveuamap with news updates on the Middle East conflict.
  • U.K. Warns of Messaging App Targeting —The U.K. National Cyber Security Centre (NCSC) became the latest cybersecurity agency to warn of malicious activity from messaging apps like WhatsApp, Messenger, and Signal, where threat actors could trick high-risk individuals into sharing their login or account recovery codes, or linking an attacker-controlled device under their accounts.

🔧 Cybersecurity Tools

  • Dev Machine Guard → It is an open-source script that scans a developer machine to list installed tools and detect security risks across IDEs, AI agents, extensions, and configurations, without accessing source code or secrets, helping expose gaps traditional tools miss in developer environments.
  • Pius → It is an open-source tool that maps a company’s external attack surface by discovering and cataloging internet-facing assets, helping security teams identify exposure and reconnaissance risks that could be targeted by attackers.

Disclaimer: For research and educational use only. Not security-audited. Review all code before use, test in isolated environments, and ensure compliance with applicable laws.

Conclusion

The lesson is simple. Small things matter. Most issues now start from normal parts of the system, not big, obvious gaps.

Don’t trust anything just because it looks routine. Updates, tools, and background systems can all be used in the wrong way. If it seems low risk, check it again. That’s where the problems are starting now.

Apple envía alertas de pantalla de bloqueo a iPhones obsoletos a través de exploits activos basados ​​en la web – CYBERDEFENSA.MX

Apple ahora envía notificaciones de pantalla de bloqueo a iPhones y iPads que ejecutan versiones anteriores de iOS y iPadOS para alertar a los usuarios sobre ataques basados ​​en web e instarlos a instalar la actualización.

El desarrollo fue reportado por primera vez por MacRumors.

«Apple es consciente de los ataques dirigidos a software iOS desactualizado, incluida la versión de su iPhone. Instale esta actualización crítica para proteger su iPhone», se lee en la notificación emitida por Apple.

El desarrollo se produce una semana después de que Apple publicara un documento de soporte, pidiendo a los usuarios que ejecutan versiones anteriores de iOS y iPadOS que actualicen sus dispositivos tras el descubrimiento de nuevos kits de exploits para iOS como Coruna y DarkSword.

Ciberseguridad

Se ha descubierto que múltiples actores de amenazas con diversas motivaciones aprovecharon estos kits durante el año pasado para entregar cargas útiles maliciosas cuando usuarios desprevenidos visitan un sitio web comprometido. Mientras que Coruña apunta a versiones de iOS entre 13.0 y 17.2.1, DarkSword está diseñado para iPhones que ejecutan versiones de iOS entre 18.4 y 18.7.

Un nuevo informe de Kaspersky esta semana encontró que el kit de exploits Coruna es una evolución del marco utilizado en la Operación Triangulación, una sofisticada campaña dirigida a iPhones a través de exploits de iMessage sin hacer clic. Salió a la luz por primera vez en junio de 2023.

«Coruña no es un mosaico de exploits públicos; es una evolución mantenida continuamente del marco de Operación Triangulación original», dijo el proveedor ruso de ciberseguridad.

Actualmente no se sabe cómo los dos kits llegaron a manos de varios actores de amenazas y ciberdelincuentes, pero una investigación reciente ha planteado la posibilidad de que exista un mercado activo para exploits de día cero de segunda mano.

La aparición de estos kits, junto con la filtración de una versión más nueva de DarkSword, ha generado preocupaciones de que podrían democratizar el acceso a exploits que antes estaban reservados para los estados-nación, convirtiéndolos potencialmente en herramientas de explotación masiva. En el proceso, corren el riesgo de transformar los iPhone y iPad en una superficie de ataque mayor que la que tienen actualmente.

Ciberseguridad

Se recomienda a los usuarios que no puedan actualizar a una versión compatible que consideren habilitar el modo de bloqueo, si está disponible, para protegerse contra contenido web malicioso. El modo de bloqueo se introdujo en 2022 y está disponible en dispositivos con versiones de iOS 16 y posteriores.

En una declaración compartida con TechCrunch, Apple dicho«No tenemos conocimiento de ningún ataque exitoso de software espía mercenario contra un dispositivo Apple con modo de bloqueo habilitado».

FortiGate RaaS, Citrix Exploits, MCP Abuse, LiveChat Phish & More – CYBERDEFENSA.MX

ThreatsDay Bulletin is back on The Hacker News, and this week feels off in a familiar way. Nothing loud, nothing breaking everything at once. Just a lot of small things that shouldn’t work anymore but still do.

Some of it looks simple, almost sloppy, until you see how well it lands. Other bits feel a little too practical, like they’re already closer to real-world use than anyone wants to admit. And the background noise is getting louder again, the kind people usually ignore.

A few stories are clever in a bad way. Others are just frustratingly avoidable. Overall, it feels like quiet pressure is building in places that matter.

Skim it or read it properly, but don’t skip this one.

Some of this will fade by next week. Some of it won’t. That’s the annoying part, figuring out which “minor” thing quietly sticks around and turns into a real problem later.

Anyway, that’s the rundown. Take what you need, ignore what you can, and keep an eye on the stuff that feels a little too easy.

Posibles exploits desarrollados en EE. UU. vinculados al primer ataque 'masivo' conocido a iOS

Un kit de explotación que puede haberse originado a partir de un marco de trabajo filtrado del gobierno de EE. UU. está detrás de lo que los investigadores llaman el primer ataque a gran escala contra iOS, el sistema operativo de los iPhone de Apple.

Rastros de los exploits, encontrados en el trabajo de ciberdelincuentes chinos, también han sido detectados en ataques rusos a Ucrania y utilizados por un cliente de un proveedor de software espía.

Esas conclusiones provienen de dos investigaciones que Grupo de inteligencia sobre amenazas de Google y iVerificar publicado por separado el martes. Rocky Cole, cofundador de iVerify, dijo que representaba un potencial “momento EternalBlue”, con ecos de ese software de explotación que escapó de la Agencia de Seguridad Nacional para alimentar el ransomware global WannaCry y los ataques NotPetya en 2017.

Google dijo que el llamado kit de exploits Coruña que es el tema de la investigación del martes «proporciona otro ejemplo de cómo proliferan las capacidades sofisticadas», como escribió en una publicación de blog sobre los exploits de día cero, o no divulgados ni parcheados previamente.

«No está claro cómo se produjo esta proliferación, pero sugiere un mercado activo para exploits de día cero de 'segunda mano'», escribió Google. «Más allá de estos exploits identificados, múltiples actores de amenazas han adquirido técnicas de explotación avanzadas que pueden reutilizarse y modificarse con vulnerabilidades recientemente identificadas».

Dijo iVerify: «Si bien iVerify tiene alguna evidencia de que esta herramienta es un marco del gobierno de EE. UU. filtrado, eso no debería eclipsar el conocimiento de que estas herramientas encontrarán su camino hacia la naturaleza y serán utilizadas sin escrúpulos por malos actores».

La semana pasada, un tribunal estadounidense condenó a prisión a un ex ejecutivo de L3 Harris por vender exploits de día cero a un corredor ruso.

Tanto Google como iVerify conectaron el kit de exploits a la Operación Triangulación, que según la firma rusa de ciberseguridad Kaspersky en 2023 había apuntado a la compañía y al gobierno ruso atribuido al gobierno de Estados Unidos. La NSA se negó a comentar sobre esa acusación.

Un portavoz de Apple no respondió a una solicitud de comentarios el martes por la tarde. Apple emitió varios parches en respuesta a la Operación Triangulación y trabajó con Google en la investigación más reciente.

Spencer Parker, director de productos de iVerify, dijo que el ataque afectó al menos a 42.000 dispositivos, una «cifra enorme» para iOS, aunque parezca pequeña para otras plataformas. Ese número tiene el potencial de expandirse a medida que los investigadores profundicen en los detalles técnicos, dijo Cole.

Otras señales apuntan al desarrollo del kit de exploits en Estados Unidos, dijo Cole.

«La base del código para el marco y los exploits fue excelente», dijo. «Estaba escrito con elegancia. Es fluido y se mantiene muy bien. Había comentarios en el código que, como alguien que ha estado en la base industrial de defensa de EE. UU. durante años, realmente recuerdan el tipo de bromas y comentarios internos que podrías ver de un codificador con sede en EE. UU. Sin duda, eran hablantes nativos de inglés».

Google dijo que rastreó el uso del kit de explotación a lo largo del año pasado en operaciones desde un cliente anónimo de un proveedor de vigilancia hasta ataques a usuarios ucranianos por parte de un presunto grupo de espionaje ruso, antes de recuperar el kit de explotación completo de un grupo con motivación financiera que opera desde China.

El investigador de seguridad de Apple, Patrick Wardle, observó en el sitio de redes sociales X sobre la investigación de Coruña: «Resulta que incluso los ciberdelincuentes más humildes estaban (ab)usando 0days para piratear dispositivos Apple».

Tim Starks

Escrito por Tim Starks

Tim Starks es reportero senior de CyberScoop. Sus paradas anteriores incluyen trabajar en The Washington Post, POLITICO y Congressional Quarterly. Originario de Evansville, Indiana, se ocupa de la ciberseguridad desde 2003. Envíe un correo electrónico a Tim aquí: tim.starks@cyberscoop.com.

Ex ejecutivo de L3Harris condenado a 87 meses de prisión por vender exploits de día cero a un corredor ruso

Un ex ejecutivo de L3 Harris fue sentenciado a más de siete años de prisión el martes después de declararse culpable de vender ocho exploits de día cero a un corredor ruso a cambio de millones de dólares.

Peter Williams, de 39 años, admitió dos cargos de robo de secretos comerciales en el Tribunal de Distrito de Estados Unidos en Washington, DC, el año pasado, reconociendo que tomó al menos ocho exploits o componentes de exploits mientras trabajaba en Trenchant, una unidad especializada en ciberseguridad propiedad de L3Harris. Los fiscales dijeron que los materiales estaban destinados a un uso restringido por parte del gobierno de Estados Unidos y sus socios aliados.

Las autoridades dijeron que Williams vendió la información robada a un corredor que se anunciaba como revendedor de herramientas de piratería y lo describió como un servicio a múltiples clientes, incluido el gobierno ruso. En el tribunal, el gobierno se refirió al comprador como “Compañía 3”, pero los detalles leídos en voz alta durante la audiencia de declaración de culpabilidad apuntaban a Operation Zero, un corredor de exploits ruso que se comercializa públicamente en línea como una plataforma para comprar vulnerabilidades de día cero.

Además, la Operación Cero fue una de las dos corredurías de día cero sancionado por el Tesoro de Estados Unidos en un anuncio separado hecho el martes.

Los fiscales dijeron que Williams usó su acceso a Trenchant durante aproximadamente tres años para obtener materiales patentados y celebró varios acuerdos con el corredor, recibiendo pagos en criptomonedas. Las autoridades dijeron que utilizó las ganancias para comprar artículos de lujo. El Departamento de Justicia ha estimado que el robo causó pérdidas por 35 millones de dólares al contratista, mientras que los fiscales dijeron que Williams ganó 1,3 millones de dólares vinculados a las ventas y se le debería ordenar que pague esa cantidad en restitución.

Los antecedentes de Williams agregaron otra capa que se observó en el tribunal. Los fiscales dijeron que anteriormente trabajó en la Dirección de Señales de Australia, la agencia de inteligencia de señales extranjeras de Australia. Los orígenes de Trenchant también son parte del historial: se formó después de que L3Harris adquiriera Azimuth Security y Linchpin Labs, empresas australianas asociadas con el desarrollo de exploits.

Ni Trenchant ni L3Harris están acusados ​​de irregularidades en el caso penal.

Para mayo está prevista una audiencia para una mayor restitución relacionada con las pérdidas de 35 millones de dólares.

Greg Otto

Escrito por Greg Otto

Greg Otto es el editor en jefe de CyberScoop y supervisa todo el contenido editorial del sitio web. Greg ha dirigido una cobertura de ciberseguridad que ha ganado varios premios, incluidos los de la Sociedad de Periodistas Profesionales y la Sociedad Estadounidense de Editores de Publicaciones Empresariales. Antes de unirse a Scoop News Group, Greg trabajó para Washington Business Journal, US News & World Report y WTOP Radio. Tiene una licenciatura en periodismo televisivo de la Universidad de Temple.