Kissbaby, I still receive the process [cmdagent.exe], memory block, Win32:FakeVimes-B [Trj], 'high severity' threat notification whenever I complete any scan which includes a high-sensitivity memory check.
I'm satisfied that Win32:FakeVimes-B [Trj] is merely a fragment of the actual virus which Comodo loads into memory as part of a legitimate process. It's irritating to see it flagged with every Avast! scan, but I can live with it.