mbarrick | Viri I'd Like to See

AOhelL virus: An AOL-specific virus that changes it from "You've got mail!" to "You're going to Hell!" (betcha that would mess with a lot of people in Arkansas!)
Truth virus: Changes the "S" in every instance of the word "Microsoft" to a dollar sign
The Idiot "virus": A simple executable with the filename "This_is_a_Trojan_-_Click_here_if_you_are_an_idiot.EXE" that when launched it present a dialogue box explaing exactly what will happen and if the user clicks 'OK' it mails itself to everyone in the idiot's Outlook address book, posts the idiot's e-mail to a list on "www.idiotsthatwillclickanything.com", changes the idiot's start-up bitmap to a graphic that reads "I'm an idiot" and changes the start-up sound to say "I'm an idiot".