Nyxem worm programmed to overwrite data files on Feb. 3
Antivirus vendors are warning of a rapidly-spreading worm that is carrying a potentially destructive set of instructions. The Nyxem worm - also nicknamed the Kama Sutra worm - is programmed to overwrite all of the files on computers it infects on Feb. 3, said Mikko Hypponen, chief research officer at F-Secure Corp.