2ourc3's 2 - Baby Crackme

Author:
2ourc3

Language:
C/C++

Upload:
2022-12-27 16:56

Download

Platform:
Windows

Difficulty:
1.6

Quality:
3.7

Arch:
x86-64

Downloads:
25

Size:
54.79 KB

Writeups:
0

Comments:
4

Description

Hi Crackers! Today we are doing a veryyy simple cypher challenge! Enjoy :) Wrote by 2ourc3 (www.bushido-sec.com)

Comments (4)
Writeups (0)

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wind010 on 2023-01-22 07:21: Is this really just decoding the printed out text after entering any key and enter or is it actually expecting a valid key value?

ssranked on 2023-03-05 16:26: I have the same question as wind010. I was able to get the correct answer from the string from console, but I couldn't find a way to get a key that would cause the program itself to return the decrypted text

featherfx on 2023-03-20 16:39: This one is pretty straight forward, since a standard caesar cipher just shifts the letters around based on the shift amount(integer) it's easy to do. If you drag the exe into cmd prompt, it will execute without instantly terminating. At the prompt you want to type 0, this will spit out the actual cipher you want to decode : Nkrru&Ngiqkxy - now you can manually shift letters to the left to figure out the key or you can paste into https://www.dcode.fr/caesar-cipher and have it bruteforce it, in which case you will get 6 as the key as it's the only that uses real words. Now type 6 for the exe prompt and u should get your decipher text. In x64dbg you can find the same cipher as typing in 0 if you search for the string at the prompt ("Enter the key:"), double click to go to location and slightly below it should be "call caeser.401550", double click it and you should see the same cipher stored as indivual chars.

featherfx on 2023-03-20 16:41: Nkrru&Ngiqkxy *** sorry idk where it got the amp; from lol

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2ourc3's 2 - Baby Crackme