Multiple files of 44 KB each, which have double extensions(mp3.exe or jpg.exe) are seen as a Trojan.Win32.VB.aia by Kaspersky Antivirus but is not seen by NOD32. What seems to be the problem? In Kaspersky Malware Enciclopedya is written that it appeared on 19-01-2006 and all the "infected" files on my PC are dated - 20-01-2006. You can download a sample from ~sniped~. It includes one of those files. What seems to be the explanation that NOD32 isn't aware of it?