Just noticed during a routine scan of the network that one of the pc was infected by In fact doing the scan remotely only advised of the infection, I then did a scan at the pc and had it cleaned as above. I am wondering why this was not detected earlier (not trying to blame - just trying to understand ) - as I have been doing these scans for more than a year. The dates of the files in this folder are 2006 and older. Can you trust these dates, meaning they have been sitting there for that long? Did NOD only now include a definition for this particular malware ? If the user had executed the file, would NOD have interfered earlier?