Hello. Welcome to 2-Spyware.com forums!
It seems that you have a worm infection. To provide you with manual removal instructions I will need more details on your problem. Please
download the HijackThis program, scan your system and post a fresh log here.
The worm that your system might be infected with is not new. Its variants are on a spreading spree for last few years. Today practically every antivirus program can eliminate it. You should install a powerful antivirus (NOD32, Kaspersky Anti-Virus, AVG Anti-Virus, AVAST, etc.) and scan your system with it. This should be done in
Safe Mode.