Con-The-Cat -TRABODA-Forensics-CTF write up

Snehasree S
2 min readJun 20, 2021

Here is the brief write-up of the challenge —Con-The-Cat

This challenge falls under Forensic Category and is of Easy Difficulty level.

There is a file named sus.png attached with the challenge. Opening it we get the following image.

sus.png

There is something hidden in this file is given in the description of the challenge. So we can use tools to get the hidden files.

Initially we can check whether there is any hidden files in the png file. So we are using binwalk command on the png file.

Using binwalk command on the png file.

So here we can see four jpg file, and some other files are hidden inside it. So to extract the hidden files we can use foremost command on it.

Using foremost command

As an output we can find a new folder created on the mentioned directory, here the folder name is newsus. In that folder we can find two more folders — jpg and png. So opening the folder jpg gives four jpg images, among it one is the flag.

Traboda is a great platform for doing CTF challenges of different difficulty levels and a very good platform for beginners to learn more concepts and ideas on different categories of CTF challenges. Easily accessible and user-friendly site and help us to sort out area of our interest.

There are different categories of Challenges such as :

  1. Android
  2. Cryptography
  3. Forensics
  4. Misc
  5. Pwn
  6. Reverse Engineering
  7. Steganography
  8. Web Exploitation

--

--