just remember, it is a computer.....and anything is possible. there have been known .dll's to be virii but there was always a counterpart executable to it, something is loading and you need to find it. what you need to do is send feedback to the AV companies etc and tell them. and never give up hope. also, post the file length of the socks[1].exe if it reappears etc. it will help everyone else determine while we search for your answers if it could be the product of what that other guy said "Mitglieder.J".
heres a link:
http://vic.zonelabs.com/tmpl/body/CA....jsp?VId=38456