Author:
mongyru12

Language:
C/C++

Upload:
12:10 PM 08/23/2025

Platform
Windows

Difficulty:
2.0

Quality:
4.0

Arch:
x86-64

Description

Simple license check with a bait (surprise), goal is to crack this statically (e.g., IDA, Ghidra etc). Uses: Lazy importer (for message box) Xorstr skCrypt Either find the license key in the binary by reverse engineering the file or patch it. You can also patch out the message box if you want to

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karabatik on 1:34 PM 08/25/2025: In Binary Ninja, user input in main is compared with the target string generated by sub_140002f50 from XOR-ed 256-bit constants using memcmp. After decrypting and XOR-ing the constants, the license key was revealed: 123_isthekey-crkm.

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