By Ellen Messmer

Thu, June 18, 2009 — Network World — Twitter spam bearing a worm virus is on the loose today trying to lure Twitter users into opening a malicious file attachment containing malware that could take over Windows-based machines, Symantec is warning.

It works through a Twitter message that arrives claiming your friends are inviting you to join them and to check the attachment — which is a ZIP file — to find out who, says Kevin Haley, director of Symantec’s security response division. “It's a new social-engineering trick,” he says, adding the payload is Ackantta.B, a variant on the Ackantta worm discovered in February that has been used in e-mail spam attacks.

Continued @ CIO.com