Just take people off of your list that either dont talk to or dont know wh htey are then make it so that only people on your budyd list can contact you and then you should be good-Thats for Aim
Hahaha... Thats the one my 9 year old neice gave my computer, last time i let her on disney.com >.<! Its really simple to get rid of the virus itself, but it leaves a crap load of spyware/ad-aware, so if you get it, its simpler just to reformat.