Russian firm Solar (a Rostelecom subsidiary) reported a nearly two-year intrusion at an unnamed Russian healthcare organization, attributed to the Belarus-aligned hacktivist cluster Partisan Zmiy (Cyber Partisans). Solar found the compromise in December 2025, but the earliest signs date to early 2024. Unlike the group's usual destructive …
Kaspersky analysis of an installer first classified as adware (MD5 c24e99f9437feacaa63766a3cde3fe3d) found that it delivers the ValleyRAT backdoor. The installer drops a modified, signed Chinese wallpaper tool, QN Wallpaper, and uses it for DLL sideloading of a malicious libcef.dll. The adware's advertising function does not work. Attacke…
BRONZE SANDCASTLE (written Bronze Sandcastle by thehackernews.com) is a previously undocumented intrusion set disclosed by SophosLabs on 2026-10-21. It is assessed as China-based or China-aligned and has been active since mid-2025 (thehackernews.com). Between August 2025 and August 2026 it compromised victims in the Philippines, Taiwan, A…
Researchers at SafeDep analyzed a macOS implant recovered from a compromised workstation. Infection began on 2026-07-26 with a paid YouTube video ad impersonating TradingView that led to a fake .pkg installer. The malware is a remote-controlled task runner, not a single-purpose stealer. It persists via a LaunchAgent that re-fetches a shel…