I think, and I may be wrong, but with all the email trafic I get, that has to be source.  I get on average about 30 to 40, give or take a few, viruses emailed to me daily.
This Trojan.CD-IT thing really cought me off gaurd.  Evidently I have had it for a few days now.  I swept my system on monday and it was clean, but here it is on Thursday. 
