Analysis jpg file---write up for FE01 in Cyber FastTrack

Problem: find the flag in the file



Step 1: when we receive the img file, we should do the following step as routine : 'binwalk-> strings-> exiftool'

 As we can see the metadata in FE01.jpg has a base64 cipher, that's suspicious.


Step 2: then we decode it in the terminal, we can see that the plaintext are invisible characters.


 Step 3: XOR brute force.


The flag is 'follow_the_xor_brick_road'

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