Looks like a new worm/virus is going around called W32.Bropia.J, my buddy Basil just got hit by it. Don't run executable file types you get from IM clients (Trilian, AOL IM, Yahoo IM etc.) Better yet, if you are not sure don't run ANY files sent to you over IM (instant message) clients.

More info here:
http://securityresponse.symantec.com....bropia.j.html

Here are some of the know file names:

# LOL.scr
# Webcam.pif
# bedroom-thongs.pif
# naked_drunk.pif
# LMAO.pif
# ROFL.pif
# underware.pif
# Hot.pif
# new_webcam.pif