An interesting description of Trojan.FakeAV.LVT
Source: http://xylibox.blogspot.com/2011/07/trojanfakeavlvt.html
An important take-away from this article is that the fake AV studied can search out and replace via impersonation legitimate antivirus software that is installed on the user’s computer. Scary as that sounds, there are obvious signs to the experienced eye that something is wrong, as you will see from the screenshots. The typical computer user, unfortunately, is fooled more easily.