The story of Israel using a sophisticated cyberweapon to spy on the United States and others attending nuclear talks is getting weirder. According to Kaspersky, the attackers not only used a Stuxnet-like weapon—they also used a stolen security certificate from Foxconn to sign the malware.

A newly surfaced version of the Duqu trojan indicates that the authors of one of the most sophisticated computer worms in recent memory are aggressively trying to figure out how to attack their next target.

When Kaspersky Labs revealed its analysis of the Duqu Trojan earlier this month they were stumped by a block of code that appeared to be a previously unseen programming language. With the help of the Internet, Kaspersky's identified the code, not as a new computer language, but rather, an old one.

The Duqu Trojan is one nasty piece of code, rivaled in sophistication only by its relative, the Stuxnet Worm. A new analysis of the Trojan, however, has revealed just how advanced it really is.