try this http://www.bleepingcomputer.com/virus-removal/how-to-use-malwarebytes-anti-malware-tutorial
they suggest you run Rkill first but I would download Malwarebytes and try that first. You may have to go into safe mode to install and run Malwarebytes. See if that gets rid of it. Some of this stuff can really drive you crazy...used to manage a repair shop.
bobaloub, November 2010
