Hydan: Steganography in Executables

An anonymous reader says "Ever wanted to hide a message into an executable? Now you can with Hydan. Presented recently by Rakan El-Khalil at Defcon and Blackhat, this tool lets you embed data into an application without changing its functionality or filesize! Check it out. Use includes steganography as well as embedding a program's signature into itself to verify it's not been tampered with."

Comments

quick question about including the signature

[k2enemy]

sorry if this is horribly ignorant...

inserting the signature into the exe will change the signature of the file, so don't you need to know the (exe + embedded sig)'s signature before embedding anything? how?

thanks in advance for any explanations.

nevermind, read it in the comments

[k2enemy]

nt