: >Another independent ISP operator and I have noticed a pretty significant : >increase in traffic to and from our broadband (DSL) subscribers since : >August. It's been a fairly steady uptick, at least in my case, resulting : >in a doubling of overall average traffic to/from these folks since then. : > : >Have others seen a similar trend? Any thoughts as to what the cause may : >be? Our best guess a virus/worm, possibly being used as a spam relay or : >other proxy at this point... : At the IETF Plenary, Bernard Aboba showed a graph of spam, with a : marked uptick since SoBig.F in August. My guess is worm-deposited spam : relays, though Joel's guess of Nachi or Welchia can't be ruled out, : either, without flow data. Don't forget the NTFS ADS spam crap. >:-( scott