crackmes.one

lmrt's NYX-ABYSS

Author:
lmrt

Language:
Rust

Upload:
2026-08-12 20:34

Platform:
Windows

Difficulty:
6.0

Quality:
4.0

Arch:
x86-64

Downloads:
8

Size:
134.34 KB

Writeups:
0

Comments:
0

Description

Recover the unique activation key in the format XXXX-XXXX-XXXX-XXXX-XXXX-XXXX and enter it to reveal the flag. The challenge is fully self-contained and may be approached with static analysis, dynamic analysis, symbolic execution, constraint solving, or custom tooling. Tested on Windows 10 and Windows 11 x64. The program performs no network communication, persistence, privilege escalation, or access to personal files.

Labels ?

Anti-debugging IsDebuggerPresent Timing (rdtsc/GetTickCount) PEB BeingDebugged / NtGlobalFlag Exception-based (SEH/VEH/INT2D) NtQueryInformationProcess CheckRemoteDebuggerPresent TLS callback String / data encryption XOR Self-modifying / runtime decrypt Crypto / hash algorithm SHA-256 Other / custom hash Code virtualization / VM Control-flow obfuscation Exception / interrupt-based State machine / dispatcher Anti-tamper / integrity Custom / generic obfuscation