Author:
deo

Language:
C/C++

Upload:
2026-05-18 18:10

Platform:
Windows

Difficulty:
2.5

Quality:
4.0

Arch:
x86-64

Downloads:
89

Size:
4.60 MB

Writeups:
0

Comments:
0

Description

Input Format: 32-character hex string {X:016X}{Y:016X} without spaces. Anti-Analysis: Anti debug (No anti attach) JIT-decrypted Custom VM. Hint: Before the inputs $X$ and $Y$ enter the VM, they are encrypted with a 3-Round Feistel Cipher. Do not use Z3 or brute-force. Just reverse the 3-Round Feistel network backwards from the VM target constants to generate the key. I included a little easter egg; it would be great if you found it. :D

• Comments (0)
• Writeups (0)

You must be logged in to post a comment

You must be logged in to submit a writeup