Detection and Anti-Detection

Indicators of Hooking:

1. Prologue modification (e.g., JMP instructions).

2. Suspicious DLLs in memory (e.g., unknown EDR hooks).

3. Differences in loaded ntdll.dll between memory and disk.

Detection Tools:

• PE-sieve, HookFinder, HollowsHunter, Detect-It-Easy.

Unhooking Strategies:

1. Manual Patching: Copy clean syscall instructions into memory.

2. ReMap ntdll.dll: Load a fresh copy manually.

3. Use SysWhispers/Hell's Gate: Avoid user-mode altogether.