Anti-virus support for packers

Hello all:

During an interesting "study" session on viruses, I found to my dismay Norton Antivirus Corp. Ed. wouldn't even detect UPXed viruses (the UPX version being the latest. The older ones too weren't detected!). Funny enough, NAV wouldn't detect the file on accessing it and not even when the virus is run!!! Is this behaviour common with all other Virus Scanners too (such as McAfee, Kaspersky etc.) I also tried ASPack and still same result. NAV simply couldn't detect the virus. The "virus" sample chosen for the study was the W32.Debploit virus.

What gives?

Thanks and Regards,
Raghav Received on Mon Nov 25 19:29:33 2002