EnCase BYOVD - User-Mode NTDLL Unhooking

Ibrahim Saud@tektrix

•updated Jun 23, 2026•0•0•2

Detects the EDR Killer utility restoring or unhooking user-mode APIs in ntdll.dll (by reading a fresh copy from disk into memory) before it begins communicating with the vulnerable kernel driver. This is identified by a file access event on ntdll.dll in System32 folder, joined with an image load event for EEDbg.sys by the same initiating process.