Heads up, Skype users. Seems there’s a P2P worm that’s working its way through the chat feature. It appears as a link from someone in your contact list or possibly an unknown user. It’ll look like a JPEG file but when you click on it you’ll get a dialog asking you to run or save a “.scr” file. If you run it, jump back Jack. You’ve just been infected and your computer will start sending the infection on to your other contacts.
Symantec, F-Secure Corp., and Kaspersky have already updated their virus definitions and other antivirus software companies should follow suit shortly. In the meantime, don’t download that file!
On the worm that affects Skype for Windows users [Skype Blog] via Yahoo! News