You've Got an E-Card--From the Storm Worm

How has the Storm Worm managed to insinuate itself onto more than a million PCs (and perhaps several million) worldwide? The bad guys behind it use slick and imaginative messages to deceive their victims. This wave from around August prompted recipients to download a supposed greeting card. Hallmark says that valid e-mail messages announcing an e-card should have subjects such as "A Hallmark E-Card from [name of the sender]"; the company lists other tip-offs in its notice about fraudulent messages. (Image provided by Postini.)