Yahoo Contains Yamanner Worm

Yahoo says that it has contained the “Yamanner” Worm, a malicious program targeting the millions of people using their email service. The worm infected anyone who opened the email and the worm then scanned that users contact lists for email addresses with the yahoo.com and yahoogroups.com domains. Yahoo said that a very small fraction of it’s userbase was infected and steps have already been taken to protect their users and that nothing needs to be done by any yahoo users as the fix has already been distributed to all Yahoo Mail customers. Yahoo also advised users to update their antivirus programs and to block all incoming emails from av3(at)yahoo.com. Nothing was said about wether the infected users needed to do anything else or not, but updating antivirus programs and scanning their computers should take care of it.