BeepRAT Screen Capture via GDI BitBlt/GetDC API Calls

Ibrahim Saud@tektrix

•updated Jun 30, 2026•0•0•2

Detects suspicious behavior linked to the BeepRAT malware or related tooling (tcc.exe, LuaJit.exe). It monitors for the loading of GDI32 modules by these specific processes and identifies instances where these processes perform cross-process access to sensitive Windows system processes like explorer.exe or dwm.exe, which is indicative of process injection or defense evasion techniques.