Larva-24009 keylogger: hidden hooks, spoofed mutex, priority boost, OneDrive-disguised logs
Detects the HeptaX keylogger by identifying a specific sequence of suspicious process behaviors: installation of WH_KEYBOARD_LL or WH_MOUSE_LL hooks, creation of a specific "Microsoft_SysInternal_logger-v2.0" mutex, elevating the process priority class to high or realtime, and writing log files to a directory masquerading as a OneDrive folder within ProgramData.
Microsoft Sentinel (KQL)
