Latest cybersecurity reporting from selected sources.

Researchers found China’s Daxin rootkit and a new Stupig backdoor on a Taiwan firm’s network, suggesting a stealthy intrusion dating back to 2013. Symantec’s Threat Hunter Team found Daxin running on a compromised host at a Taiwan-based subsidiary of a multinational high-tech manufacturer in 2026. Daxin is a Windows kernel-mode rootkit that Symantec first documented […]

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Novel Java-Based QuimaRAT Targets Windows, macOS, and Linux   Vibe Coded Extortion: Avalon’s Path from Legal Lure to CrownX Ransom Capabilities Armored Likho digging a snake pit: inside the covert BusySnake Stealer campaign   RedWing: A […]

China-linked FishMonger used two SprySOCKS Windows variants that leveraged kernel drivers and the Print Spooler to target governments in four countries. ESET researchers have found two previously undocumented Windows versions of SprySOCKS, a backdoor that the security community had until now treated as Linux-only. Trend Micro first documented the Linux variant in September 2023 and […]

A study by the University of Toronto shows how artificial intelligence can power autonomous worms capable of tailoring attacks against Windows, Linux and IoT devices. A group of researchers from the University of Toronto has demonstrated how open-source artificial intelligence models can be used to create a new category of computer worms capable of autonomously […]

Researchers uncovered a 230-node cloud-based email relay network after the actor PCPJack accidentally exposed tools, logs, and C2 files online A threat actor tracked as PCPJack compromised 230 cloud servers across Amazon Web Services, Google Cloud, and Microsoft Azure and turned them into a covert email relay network. Hunt.io researchers discovered the operation because PCPJack […]

Gamaredon exploits a WinRAR flaw to drop modular, nearly fileless malware on Ukrainian targets, hiding payloads in Windows streams and resolving C2s via Telegram. Sekoia’s Threat Detection & Research team dropped a YARA rule in late December 2025 to hunt for new initial access vectors, and by January 2026 it had already generated a dozen […]