[COLOR=#1951B9]Security researchers have discovered a malicious program that installs itself through a pop-up ad and can read keystrokes and steal passwords when victims visit any of nearly 50 targeted banking sites.[/COLOR]

Security experts at the Internet Storm Center have studied the "img1big.gif" trojan file, and have discovered it to target a long list of banks and attempted to steal the account information of those institutions' customers.

More here.