An AVG scan this morning turned up a threat. It was labeled as Trojan Horse Small FHT, C:\Program Files\Microsoft Security Client\MsMpEng.exe (1084). AVG reported the threat as removed however a subsequesnt scan finds it again. I am running Windows 7 Home Edition Premium with Firefox browser. All windows updates as well as virus definitions are up to date. Please advise on removal instructions. Thanks so much! I have successfully used these forums in the past and really appreciate the help you offer!