You need to install an anti-virus program immediately and perform a full system scan in "Safe Mode
". You also need to install at least one good anti-spyware program like SUPERAntiSpyware Free
and perform a full system scan, again in safe mode.
See BC's Freeware Replacements For Common Commercial Apps
and List of Virus & Malware Resources
If you are only using Windows XP, please update to Service Pack 1a
and install All CRITICAL Updates and security patches except SP2
which will help to prevent crippling malware attacks. Without doing this first, you are wide open to re-infection and other high security risks which are prone to an unpatched system and we are just wasting our time. By applying all critical updates, you will close many of these security holes which make your computer vulnerable and not keep getting reinfected while cleaning your machine.
Further, unpatched and infected Windows systems on the Internet are a security risk to everyone
. When there are insecure computers connected to the Internet, malware spreads faster and more extensively, distributed denial-of-service attacks are easier to launch, and spammers have more platforms from which to send e-mail.