Author:
Colby5Covington

Language:
C/C++

Upload:
5:12 PM 09/06/2021

Download

Platform
Windows

Difficulty:
4.0

Quality:
4.0

Arch:
x86-64

Description

This is my test crackme using code meme mutation, your task is to find the key without any patches of checks on it. Good luck:)

• Comments
• Solutions

r3dh4wk on 2:01 AM 09/21/2021: Any test key example? Because I think there is glitch in your crackme's encryption. After entering the correct key it just closes without showing any Good boy message.

Colby5Covington on 5:40 PM 09/22/2021: r3dh4wk, no, when you enter the correct key, the string "okay, you win" is output

pranav on 7:28 AM 10/17/2021: I am not planning to crack it or something(coz I can't), but I'm just curious what's this 'code meme mutation'? What did you mean by that?

lola on 2:04 PM 10/19/2021: Creator, can you please upload the solution?

hacker. on 3:12 AM 10/23/2021: I do not know what "meme mutation" is, but I know what "insert blocks of random instructions between blocks of real instructions" or "obfuscation" is. I'm too lazy to get the right key, because the whole interest for me is in getting the algorithm. Correct hashed key: 0x52799C0ABE85BBE0 Hashing goes something like this: mov rdx, qword[rbp+0x1358] add rdx, qword[rbp+0x1388] ; 0x00000000000000E0 mov qword[rbp+0x1358], rdx ...In a loop, with a certain condition. Who wants to get the correct password - here are the file offsets, where the main functionality lies: Installing the hashed key in r14: 8682C (file offset) Hashing algorithm: 7E432 (file offset) Checking the hashed key entered with the correct one: 8EE72 (file offset) Don't take my beginning as rude. This crackme was interesting, thank you.

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