Author:
UnhappyAngel

Language:
C/C++

Upload:
9:29 AM 09/09/2019

Download

Platform
Windows

Difficulty:
4.0

Quality:
4.0

Arch:
x86

Description

my first crackme, saw a similar algorithm in another task and tried to change it a little

• Comments
• Solutions

HempDay420 on 9:16 PM 10/18/2019: false detection on virus total (trojan downloader)

fondra on 7:53 PM 10/23/2019: Good encryption-based crackme. I patched the file since following the encryption got boring ;)

coyote_0x90 on 2:08 PM 11/03/2019: Spoiler alert!!! Enter password: thinkingthonking Result: true All of the functions used to generate the hash that gets checked are reversible. One of them is just very hard to find the inverse of. I hope to post some code for how I got this later. This should probably be harder than a level 2 if you plan on not patching it.

4epuxa on 9:29 PM 03/13/2021: Is it possible to wrap a function with xor where 4 more functions are called. I didn't convert it normally, I just, one might say by accident, thought, what if I looped it and see the values. I got what I need. The password turned out to be correct as well, but I am wondering how the others have reversed this function.

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