crackme552's BinaryShield (Custom VM + Open-Source!)

Author:
crackme552

Language:
C/C++

Upload:
2024-09-24 15:27

Download

Platform:
Windows

Difficulty:
3.5

Quality:
4.8

Arch:
x86-64

Downloads:
15

Size:
10.25 KB

Writeups:
0

Comments:
4

Description

Custom VM protection I am developing. You can find the source code here, but I encourage you to attempt getting the key, or devirt, before looking :)

Comments (4)
Writeups (0)

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dev0 on 2024-10-11 10:16: Is there a logic bug in this? I have 5 "keys" that will get the correct input message. Either way this is really well done. Really cool idea on a stack VM.

ToMKoL on 2024-10-11 13:42: Spoiler https://blog.washi.dev/posts/binaryshield-vm-crackme/ Spoiler

Narmjep on 2024-10-21 00:59: Loved the challenge, learned a lot. I recommend learning ghidra scripting for this one to set references automatically

crackme552_2 on 2024-10-26 14:03: Hello, OP here, I forgot the password to my original account LOL. dev0, you are correct, I accidently created multiple keys when trying to add source code level obfuscation, sorry about that. Thank you everyone for your kind words regarding the protection. I intend on updating it, but started 2nd year university and thus not much time :P. Please see the following links: source code: https://github.com/connorjaydunn/BinaryShield walshi's blog (SPOILER: SOLUTION IN HERE): https://blog.washi.dev/posts/binaryshield-vm-crackme/

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crackmes.one

crackmes.one

crackme552's BinaryShield (Custom VM + Open-Source!)