First bumper stickers, t-shirts and coffee mugs - now Obama is a worm!

During the 2008 presidential election campaign the Obama for America team branded almost everything that moved with logos and slogans promoting Barack Obama.

During the transition period for President-elect Obama his face began appearing on even more merchandise.

Now as President Obama his face appears on PC monitors if these have been infected with an Obama Worm.

The worm spreads via USB drive, using the Windows autorun feature to install itself automatically on any drive it connects with. Unlike most of today's profit-driven malware, the Obama worm doesn't steal your credit card number or turn your PC into a remote-controlled zombie system. In fact, it isn't designed to do anything besides float a small picture of Obama at the bottom right corner of your desktop all day every Monday.

Unfortunately, it is so badly written that the worm gradually renders any PC it is run on completely useless, according to Rob Koliha, Walling Data's director of innovation. "It will basically prevent execution of any kind of files."

Because antivirus programs don't detect it yet, it's also hard to know when you've been infected, except on Monday.