First off, welcome to THE forum! Second, in order for us to help you, we need more info from you, such as what antivirus are you using and what firewall, if you scanned your pc with the anti-virus, etc. A good place to start you off is downloading Spybot Search&Destroy, install it and run it. After that download HiJackThis, run it and attach the log it creates to a future post in this thread. Good luck!