BD Internet Security 2008 just identified and moved a file to quarantine that was supposedly infected with Trojan.AgentMB.DWTU1214221. This was an install file for irfanview 4.01. I had done a deep system scan a couple of days and nothing was detected. This file has been on my system for quite awhile. I keep it in a downloaded/installed folder. I've searched for any info on this variant and can't find anything. Anyone know anything?