Share how awesome the crack me was or where you struggle to finish it! Stay polite and do not spoil the solution/flag!
Author:
praisetheveil
Language:
C/C++
Upload:
6:04 AM 11/17/2025
Platform
Windows
Difficulty:
6.0
Quality:
4.0
Arch:
x86-64
Description
Goal: Derive the real key algorithm and produce valid, unpatched keys. Your solution is accepted if you provide at least one of: A full, technically correct explanation of the algorithm A working keygen that produces valid serials for arbitrary valid input (name / machine) Rules: You may patch anti-debug/anti-analysis/integrity checks if you want (good luck figuring all of them out). You may not solve it by simply forcing the program to always print “correct” / always accept the key. I will reject “solutions” that don’t actually understand the core algo (e.g. nop compare, force branches, etc). Features: Custom 64-bit hash / mixing primitive with: Feedback loops Multi-round finalization Global state pollution (g_state, g_checksum, g_vm_key) Multi-stage key derivation chain: name → hn_chaos HW fingerprint → hh_chaos time / rdtsc / drift → tbits_secure anti-debug bits → abits_extreme + pebdbg_advanced .text integrity hash → tcrc_advanced all fed into core_seed_extreme, ps_decoy_multi, chain_multi Triple-stage custom VM: 3 encrypted bytecode blobs (BC_ENC1/2/3) Per-run key schedule and bytecode decryption 16-reg VM, 8-key schedule, custom stack, polymorphic opcodes Opcode metamorphism via OPCODE_MORPH + state-dependent decode Global state coupling: Almost every check / hash pollutes global state Order of operations matters “skip check X” can corrupt later stages Anti-debug / anti-RE: PEB checks, NtQueryInformationProcess family Hardware breakpoint detection (DR0–DR3) Parent-process scan (x64dbg / x32dbg / Olly / WinDbg, etc.) Timing probes (QPC, rdtsc + Sleep drift) Multiple __debugbreak + vectored exception handler that mutates state Self-modifying code: Entry point region is read/modify/written at runtime Mod hash feeds back into global state and keys Flag handling: Multi-layer encrypted flag blob (FLAG_ENC) Custom multi-key, multi-stage RLE / transform unpacker Final consistency check tying flag back into internal golden value