Most protectors redirect the Import Address Table (IAT). Enigma 5.x often destroys the original IAT structure entirely, replacing API calls with jumps into "mutation" stubs that resolve the address only at the exact microsecond of execution.
Enigma installs several callbacks via NtSetInformationProcess (to hide breakpoints) and patches system DLLs in memory. A good unpacker: Enigma Protector 5.x Unpacker
Remove the now-useless protector sections to reduce file size and ensure the new executable is portable. ⚠️ Common Hurdles Most protectors redirect the Import Address Table (IAT)
The goal is to let the protector unpack the code in memory and then "freeze" it at the moment the real program starts. Enigma Protector 5.x Unpacker