A program called hijack this here is a link:
http://www.majorgeeks.com/HijackThis_d3155.htmldownload it to a location on your hd SAVE IT DONT JUST RUN FROM LOCATION then when you get it in its own folder click run scan and save logfile after it scans it will appear with a logfile which you can copy and paste into a new thread in the security forum and explain your situation and they will get back to you

I cannot help there however, as i am not an hjt expert.