Hexed Virus/Malware/Spyware/etc

[e><ius]

This concept is also called "Packing", as in, packing the executable down into a smaller size, thus changing the signature

What joo packin? "I'm packing HEAT!"

Finally there are antivirus products that use an internal "sandbox" to open and examine files in. This is actually a rather old concept.

that was what i was refering to. what does this "sandbox" consist of? a folder? a directory? an image? if i were in my sandbox, i'd eventually wanna play 4-square or kickball.