I’m having the same problem with the Win32:Beagle-K [Wrm]
“C:\Documents and Settings\Admin\Local Settings\Temp\Perflib_Perfdata_600.dat”

No matter what I try, I cannot delete it. I even tried starting in safe mode, but the file does not exist there.

Does anyone know how to get rid of this thing? It may be harmless, but it keeps setting off virus warnings and it is very annoying.