IIRC there was a clue about stego earlier
Ok tell me how to use/run stegdetect@tejas
A jpeg is a bitmap.
so if the duplicate image has the same size and same resolution, then it will have same bitmap. The steganography works by changing the bit value of pixel. so same bitmap will have same info hidden.
whats the clue? pm me
in a previous CTC
on windows, first start command prompt, then cd to the directory
run stegdetect and use the readme file for commands
The previous answer + current answer is the page for the next clue.