Yeah that was my initial thought, but we've been hit now from multiple
nameservers (and constantly machines that are named "ns" or appear in a
'nic record). I just found it odd that we're only getting hit from
machines matching this pattern. I guess it was random, but you never
know 
Best regards,
Jamie Scheinblum - FASTNET(tm) / You Tools Corporation
jamie@fast.net (610)954-5200 http://www.fast.net/
FASTNET - Business and Personal Internet Solutions