Hello there, I'm experiencing the exact same problems as the guy in this thread : http://www.bleepingcomputer.com/forums/t/298584/infected-with-http-tidserv-request-and-http-tidserv-request-2-and-cant-run-gmer/
I'm getting notifications from Norton (every 5 minutes or so) that it has blocked an intrusion attempt.
Also, whenever I'm in Firefox, sometimes it will automatically open a new tab to some random site advertising things.
I've been running Ad-Aware, Malwarebytes, and Norton Anti-Virus scans. They only picked up some tracking cookies, no dice.
I know that I'm infected with something, but I don't know how to go on fixing it. If anybody could help me with this problem, that would be very much appreciated.