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Name	Author	Language	Arch	Difficulty	Quality	Platform	Date	Downloads	Writeups	Comments

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Crackme	Comment	Date
Obsidian	Cracked using cutter. There's no license server(checked with Wireshark). Strings like INVALID LICENSE KEY have 0 XREFs (nice try hiding them), but I managed to find the main validation function by tracking the XREFs of the decoration strings. I also noticed the key generator uses a 34-character alphabet (excluding I and O). I patched the length check detour to a forced jump, and bypassed the final error judgment (test ebx, ebx / jne) with NOPs to accept any input. â â â AUTHENTICATION PORTAL â â â â â £ â â â This software is bound to your hardware. â â Each machine has a unique license key. â â â â Your HWID: 4353D77870A94175 â â â â Enter your license key below. â â Format: XXXX-XXXX-XXXX-XXXX â â â â [>] License Key : 1 [] Contacting license server..... [] Validating HWID binding... [*] Verifying license key... ââ â â â âââââââââââ âââ âââââââ â ââââââââââââââââââââââ â â ââââââ ââââââââââââââââ â âââââââââââ ââââââ âââ ââââââ ââââââââ â â ââââââ ââââââ âââ ââââââ â â ââââââââââââââââââââ âââââââââââââââââââââââââ â â â â â â License validated. HWID binding confirmed. â â â â You have defeated OBSIDIAN. â â You are a true reverse engineer. â â â (Used wine to run executable)	2026-06-28 01:11

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