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New Java-Based QuimaRAT MaaS Built to Run on Windows, Linux, and macOS
Cybersecurity researchers have flagged a novel Java-based remote access trojan (RAT) called QuimaRAT that's capable of targeting Windows, Linux, and macOS environments. According to LevelBlue, the cross-platform malware is advertised under a malware-as-a-service...
SkillCloak Lets Malicious AI Agent Skills Evade Static Scanners with Self-Extracting Packing
Scanners meant to catch malicious add-on "skills" for AI coding agents can be fooled by a few simple changes that leave the malware working, according to a new study from researchers at the Hong Kong University of Science and Technology. Their strongest trick slipped...
Opera GX Flaw Let Malicious Sites Auto-Install Mods to Steal Data From Visited Pages
Researchers found a flaw in Opera GX, the gaming-focused version of the Opera browser, that let a malicious website silently install a browser add-on and use it to lift specific data from the pages a victim visits. In a proof of concept, they reconstructed a signed-in...
U.S. Government Entity Paid Kairos $1 Million in Data-Theft Extortion Case
A U.S. government entity paid about $1 million to keep stolen files from being leaked, according to a new case study by Rakesh Krishnan for Ransom-ISAC, built on a leaked negotiation chat and the blockchain trail the payment left. The odd part: the group that took the...
North Korean Hackers Publish 108 Malicious Packages and Extensions in PolinRider Campaign
The North Korean threat actors linked to the Contagious Interview campaign have been observed publishing 108 unique packages and web browser extensions spanning npm, Packagist, Go, and Google Chrome as part of an ongoing activity referred to as PolinRider. "The...
Unpatched Flaws Disclosed in Filesystem Bundled Into Millions of Embedded Devices
Security firm runZero has disclosed seven vulnerabilities in FatFs, a small filesystem library that lets a device read and write the FAT and exFAT formats used on USB drives and SD cards. The flaws matter because FatFs is nearly everywhere. It ships inside the...
New “Bad Epoll” Linux Kernel Flaw Lets Unprivileged Users Gain Root, Hits Android
A newly disclosed Linux kernel flaw called Bad Epoll (CVE-2026-46242) lets an ordinary user with no special access take full control of a machine as root. It affects Linux desktops, servers, and Android, and a fix is out. Bad Epoll sits in the same small stretch of...
New Avalon Malware Framework Packs CrownX Ransomware Capabilities
Cybersecurity researchers have discovered a previously undocumented modular malware framework codenamed Avalon that's distributed by means of a multi-stage phishing chain capable of bypassing traditional security controls. Avalon combines credential collection,...
North Korea-Linked npm Packages Mimic Rollup Polyfills to Steal Developer Secrets
Threat actors with ties to North Korea have been linked to a fresh set of malicious npm packages that masquerade as Rollup polyfill tooling to facilitate remote access and data theft. According to JFrog, the packages "rollup-packages-polyfill-core" and...
Armored Likho Targets Government Agencies, Power Sector with BusySnake Stealer
A previously undocumented threat actor known as Armored Likho has been attributed to cyber attacks targeting government agencies and the electric power sector across Russia, Brazil, and Kazakhstan. "Armored Likho blends financially motivated campaigns targeting...
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