If it's Friday, it must be time for another Bagle/W32 variant. This time, it seems that the coders are playing games that make it easier for the virus to get past AV scanners. It is a good reminder to keep signature files up to date, and post notices that employees really shouldn't go around opening strange attachments they weren't expecting.
I suppose it's appropriate to get a little scare just before Halloween. Just remember to keep the little goblins in check, and have a scary, safe weekend.