Hiding Files in ZIP Archives

from blog Blog on hjr265.me, | ↗ original
I remember seeing a tool many years ago that could hide other files in BMP image files. I was a bit too young to understand how it worked, but I think I understand the trick now: Understand the structure of the file type at the byte level. Find a spot that can hold an arbitrary length of data. Sneak in whatever you want in there. As a proof of...