Infected with the trojan.patchep!sys - manual removal

After reviewing the forum it is to my understanding that the removal of this trojan is specific to each machine.  I only recently found out that I have been infected.  I installed norton security suite from my service provider and found that I need to manually remove trojan.patchep!sys.  I also keep getting notifications that my c:\windows\system32\services.exe file is infected.  I am running Windows 7 x64