On my planet, BadTrans is the worst email worm ever. I say that because it’s the only one I’ve ever received personally, and I’ve gotten several copies of it. I expunged most of them when I was reading my email in mutt, but I also downloaded a few in Mozilla. It was actually quite exciting to see my anti-virus software do something for a change, I haven’t been responsible for infecting a computer with a virus since I was in college and used software that a friend gave me (the virus back then was JerusalemB).