rippy's You can't solve this one

Author:
rippy

Language:
C/C++

Upload:
2022-06-25 11:21

Download

Platform:
Windows

Difficulty:
3.0

Quality:
3.8

Arch:
x86

Downloads:
10

Size:
186.50 KB

Writeups:
0

Comments:
8

Description

Patching is allowed even tho you can't understand anything. Find the password and if you find it, contact me on discord !

Comments (8)
Writeups (0)

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kiter on 2022-07-22 17:17: So i guess i found a patch but i have no idea how to output the actual password onto the screen

timotei_ on 2022-07-31 20:57: For me the program crashes on an illegal instruction or is this part of the protection? Any hint?

nassimorg on 2022-08-01 10:13: @timotei_ ik how to solve this but i have no idea how to find the flag or the password i need some hint if possible and thx

timotei_ on 2022-08-01 21:27: I cannot even start the program, it crashes due to an illegal cpu instruction (vpxor). Or is this part of the protection?

timotei_ on 2022-08-02 19:23: I think it manipulates the code at runtime.

1320014053 on 2022-08-04 12:16: I can easily patch the crackme, but I can't find the password

funkster on 2022-09-13 01:06: the password is randomly generated

Delirium on 2022-09-15 04:19: I think during the first phase, the Mersenne Twister pseudorandom number generator (PRNG) is used. The algorithm is seeded with the first four bytes of the key. Then, each byte of the cipher is XORed with the next byte generated by the PRNG.

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crackmes.one

crackmes.one

rippy's You can't solve this one - Corch