|Wish I knew but in my opinion the likelihood of them being viral is low. It's hard to imagine a virus going totally unnoticed for over five years - they were nowhere near as sophisticated at hiding themselves in 2008 as they are now.|
Did you manage to find any recognisable words in them when viewed in NotePad?
I've got a feeling it matters little whether they stay or go. I don't believe they currently are being used as drivers - might have been used for setting up something. The only hits I get on the file names when using Google are from this thread.
Always pop back and let us know the outcome - thanks