First of all, I would suggest that anyone looking for info on specific viruses, worms, Trojan horses and other malware consult various vendor sites. I have about 15 of them bookmarked for when I need to find something.
In this case, I asked my friends over in AVI-EWS about this critter and got a number of replies. Amongst them, was the fact that this Trojan horse exists in numerous variants. Here is one of those descriptions.
In the case of virus forensics, I'd suggest that you check in with a virus specialist, either at a vendor or via AVIEN.
For more info on this topic, visit these SearchSecurity.com resources:
This was first published in October 2003