On slashdot today (where is Philip K. Dick when we need him?):

"CNet is reporting that a new IM worm chats with users to get them to down load a file containing a virus. The virus replicates its self and sends its self out to user's buddy lists. The virus will reply 'lol no this is not a virus.' The virus hides users from seeing the messages sent out to members of their buddy list. Viruses are evolving; now they will even talk to you."