Flame cyberweapon is tied to Stuxnet program
Found on New Scientist on Monday, 11 June 2012
Kaspersky says that a module from Stuxnet, known as "Resource 207" is actually a Flame plugin that allows the malicious code to spread via USB devices. "The code of the USB drive infection mechanism is identical in Flame and Stuxnet," says Kaspersky.
A coding error (the US reportedly blames Israel and vice versa) allowed Stuxnet to escape into the wild and reveal its existence - which a secret cyberweapon should of course not do.
Actually it's not too surprising. Stuxnet and Flame both required detailed knowledge of the systems they are made to attack, not to mention the obvious effort that has been put into keeping those pieces of software under the radar for so long.