Compass Call,
Are you sure it was spelled TROJ_FEMAD.A? I cannot find any reference to that Trojan.
If the Trend Micro found the virus, that means you have had it on your computer and it is now in your restore files.
There are several reasons why Norton did not pick it up. Some of the most likely reasons are that either a virus disabled Norton or Norton has not been updated to include that Trojan in its search.
Take Care,
Richard