HandleKatz Duplicating LSASS Handle

SigmaHQ Detections@sigmaHQ

•updated Apr 25, 2025•0•15

Detects HandleKatz, a tool designed to duplicate the LSASS process handle with specific access rights (PROCESS_DUP_HANDLE, PROCESS_QUERY_LIMITED_INFORMATION, PROCESS_QUERY_INFORMATION) to later dump its memory without opening new handles. The detection logic focuses on the target image being 'lsass.exe', the specific granted access rights, and a suspicious call trace originating from ntdll.dll with an 'UNKNOWN' module.