XCTF - She

1 minute read

CTF Name: XCTF

Title: XCTF

Category: reversing

Timestamp: Mon, 29 Apr 2019 06:10:34 GMT

Tags:

  • game cracking
  • cheating

Tasks:

  • [crack]
  • [puzzle]

Challenge Description

Enjoy the game!

Steps to solutions/discovery

After hour of reversing engineering and searching, I found out that the values in the game are calculated as 2*x+1 of their original. So here I decided to use CheatEngine to capture the memory addresses and write them.

In the Screenshot-1: you can see that I have increased the level to 40 and flags to a lot.

Screenshot-1:

https://imgur.com/IC7LkGv

The second step was to beat the boss, so I increased the health to enormous value and kept fighting with it; although, I could not give him damage because the thunder chicken was resistent to my attack, but it had a low poison resistence so after several matches it died of poision and opened me a door to the next level.

Screenshot-2:

https://imgur.com/0nRt6gQ

The next step, was to solve some color riddle and after I opened the yellow chest a hidden door opened and I got into the MD5 room, which suggested that I should combine the numbers of chest and submit the md5 hash.

Screenshot-3-4-5:

https://imgur.com/eOjfxUr

Screenshot-3-4-5:

https://imgur.com/lBte2Qq

Screenshot-3-4-5:

https://imgur.com/qAJwgWz

The last thing was to guess the order of the numbers and submit them as *CTF{md5 of numbers you have found}.