lobeshnik's a simple crackme using dll

Author:
lobeshnik

Language:
C/C++

Upload:
2023-04-28 11:33

Download

Platform:
Windows

Difficulty:
2.5

Quality:
3.6

Arch:
x86-64

Downloads:
16

Writeups:
1

Comments:
8

Description

Task: find out what data you need to enter to get a positive answer. Rules: you can't patch.

Comments (8)
Writeups (1)

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timotei_ on 2023-05-02 18:53: You don't need much keys of the keyboard:-) An easy one. Thanks.

rab on 2023-05-05 15:58: Nice lapel in the loop, However, it is easier to try without even looking inside. Thanks for that, it was nice !

spd on 2023-05-07 07:18: A pretty challenging one for people learning reverse engineering, This one took me about half an hour looking at the CheckCommand code lmao, I was struggling with the array thing most of the time.

TyfoC on 2023-05-25 07:52: Okay, it was very interesting and not easy (~20-30m)) So, login length must be at least 6 characters, password is reversed login. Reconstructed CheckPassword(const char*, _BYTE*): #include #include // login - any string // password - reversed login bool CheckPassword(const char* login, const char* password) { int length = (int)strlen(login); if (length = 6 ! std::cout

TyfoC on 2023-05-25 07:54: [Click to reveal]

volts on 2023-06-12 12:04: My third crackme, went pretty smoothly, ended up debugging the CheckPassword method instead of trying to understand it. I actually solved this before I even disassembled it, the first thing I tried was login = "a" and password = "asdfgh", which actually works because of a bug in this method.

Akmore on 2024-08-11 15:09: Solved!!! Just reverse the checkPassword Function and don't take the rabbithole

junfer001 on 2024-10-28 19:38: [Click to reveal]

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Solution by flower on 2023-05-08 18:13:

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crackmes.one

crackmes.one

lobeshnik's a simple crackme using dll