McAfee 7.1.0 with DAT 4364 (6/2/04) detects it as BackDoor-CCT. This is
not a worm, it's a trojan. Your systems are being remotely compromised,
possibly with an auto-rooter targeting the lsass vulnerability, which
instructs the compromised system to download, install, and run this
trojan. This trojan includes a keystroke logger, and additional
components that you seem to have missed. Assume that system and any web
site passwords have been compromised. Warn the users of these systems
that unless they change any financial site passwords they are likely to
be victims of theft.
How are these system getting compromised? Why don't you have this patch
deployed yet? Why are these systems reachable from the Internet over port
445?