Silent Lynx Exploits WinRAR in CIS Government Campaign

Fri, 16 Oct 2026 15:21:49 +0000

Engineer — Learn: No CVE or patch version is named, no enrichment signals exist, and targets are CIS government entities — nothing actionable for patching or configuration today, but the WinRAR exploitation chain is worth tracking if a specific CVE surfaces.
SOC/IR — Plan: The multi-stage chain — macro-enabled lures → PS2EXE dropper → GitHub-hosted PowerShell C2 → WinRAR delivery — maps to detectable ATT&CK behaviors; consider building or tuning detections for GitHub-domain PowerShell callbacks and PS2EXE execution patterns this quarter.
Leader — Skip

Winrar on CuraSec