Actually, there is a "folkie" version. It is disguised as a fairly innocuous-sounding chorus, preceded by the words, "sing along with me, now..." It infects your very soul, nevermind your silly little 'puter! We must all be ever-vigilent. Remember, only ewe can prevent the spread of virii through the practice of safe folking! (I hope I haven't lost any friends with this post; I am down to only three already, and I'm not too sure about two of them.)