[Tyhm]

Yes yes, and you can embed virii in MP3s and in the subject lines of emails. You can put a virus anywhere, even in a forum post's text - what matters is if the recieving person uses a viewer stupid enough to execute any code it comes across. Some viewers are, it's called a Memory Leak: If they read a text box with "; format c:; print ", it processes that as print""; format c:; print "" instead of print""; format c:; print ""; with the obvious effects.

Point being, unless Graal has a memory leak I could rename the melissa virus frog.png and force everyone to download it, a few virus checkers would detect and delete, nobody would properly see the frog graphic, but nobody would be attacked by the virus. If virii were as sci-fi dangerous as you think, they'd dissolve the disk they were stored on.