A file posing as photographic evidence that Osama Bin Laden has killed himself is in fact infected by the Hackarmy Trojan horse, according to Sophos. The Lynnfield, Mass.-based IT security firm said thousands of messages have been posted on Internet message boards and Usenet newsgroups. It claims CNN journalists found the terrorist leader's hanged body earlier this week, but that the photographs have not been officially made public because the U.S. government wants to verify it's Bin Laden. The messages point to a Web site where a file can be downloaded, purporting to contain photographs. In reality the file contains the Trojan, which can allow hackers to gain remote control of the victim's computer.