"Favorite" Virus

[Flying Mullet]

Have you even heard of or encountered any computer viruses that you thought were creative or original and do more than just try to delete files or clog a network?

I remember a while back there was a virus that would go into Word and add a bunch of common mispellings into the dictionary, such as "alot", "thier" and "teh" so that the spell-check wouldn't catch it and it basically rendered Word's spelling dictionary useless.