steganography

Continuing our conversation on Steganography from Tuesday's edition of the Gazette, Infopackets Reader Mike D. exclaims how he downloaded a .WAV sound file that also contained a Trojan: " Hi Dennis, As part of a talk I gave some time ago on IPSec ... [the IP Security Protocol Working Group], I wandered into the area of Steganography. The topic was of particular relevance to me because I had only just discovered (thanks to PestPatrol ) that a Star Trek sound file that I downloaded from the Internet contained a Trojan!" Side note: Digital Steganography is the ability to hide a file inside ... (view more)

I received a fascinating question the other day from Infopackets Reader John B. He writes: " Dear Dennis, I just read about a new privacy program which is able to hides files inside jpeg image files. My question is: If I downloaded a jpeg file from ... the Internet, can it have a virus hidden inside? The reason why I ask is because I found a jpeg image file in my temporary Internet file folder. When I tried to open it, I was told that the file .exe could not be located. I immediately deleted the jpeg and am worried that my PC is now infected. What do you think? " My response: What you ... (view more)