User finds a new file on his desktop, first thing in the morning.
Creation date: last night.
Open with notepad shows a bunch of garbage characters but interspersed in the mess is obviously his contact list from outlook express.
Norton anti-virus did run last night but no viruses found and no mention of this file.
This workstation is w2k and on a LAN protected from the outside by a firewall.
What could this be?