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. F-Secure researchers found the worm truncates files to 20 bytes and causes an error message when one is opened, he said. Full Story