Forensics 1 - Writeup

Forensics 1 - Valentine CTF 2020


The Challenge leaves you with a jpg file without any hints or tips.

Approach
Since we haven’t been given a particular path to start with, we will have to test out the simple forensics techniques we know. Such as:
- Using the Strings command to find text strings embedded in the file.
- Altering the image colors & tune, to see any hidden messages.
- Checking if there is any hidden zip file inside the jpg file.

Let’s start with the very basic which is the Strings command, to check the embedded text strings in the file.

strings Trolololololo.jpg

Screen Shot 2020-03-20 at 3.30.57 AM

As we can see, strings revealed the embedded text strings in the file, including the Flag!