Author:
timotei_

Language:
Assembler

Upload:
5:30 PM 06/29/2023

Download

Platform
Windows

Difficulty:
3.0

Quality:
5.0

Arch:
x86

Description

This aims to advanced beginners. No overbloated insructions, no anti-debug-tricks, no packing, just clean code which should be good to trace. Find a working serial and try to create a keygen. Have fun.

• Comments
• Solutions

nightxyz on 1:36 PM 07/11/2023: 141157CM

BeginnerCracker123 on 1:01 PM 07/14/2023: i only can patch sadly, how to find the pass? i cannot find it in the dump and when i step into either not

nightxyz on 1:33 PM 07/14/2023: @BeginnerCracker123 There is no stored password inside file.There is an algorithm which you must solve to get valid passwords. I wrote pascal program to find a valid password using algorithm and brute force and finally found one of them is 141157CM

cnathansmith on 1:58 PM 08/08/2023: There is a small mistake in the writeup portion of my solution, where I stated that 'if "9999CMabcd" is a valid key, then so are the permutations "9999aCMbcd", "9999bcCMda", etc.' 'CM' must be at an even position in the serial. This is handled correctly in the keygen, I just forgot to update it in the writeup after realizing it. Note that 9999CMabcd isn't a valid key, just an illustrative example when explaining the permutations. If you want valid keys, run the keygen and you'll be lousy with them: 8823CMi 3077CM\ 2044CMJ 4003CMq 7146CMx ...

timotei_ on 4:07 PM 08/09/2023: @cnathansmith: Thanks for your solution, well written with good explanations.

cnathansmith on 3:19 PM 08/16/2023: Thanks!

seawolf on 8:23 AM 09/01/2023: I had prepared a solution, in 10th of July, but for some reason I did not see it online. Anyway, I will share with you some of the keys I have found and wrote them in the unpublished paper which are not in the comments. 164685CM 247025CM 494052CM 9981CM39

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