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Re: Increase in traffic to/from DSL subs since August?
In message <22.214.171.124.2.20031120125430.031eaeb0@LOCALHOST>, "Jared B. Reimer" wr ites: > >Greetings. > >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. --Steve Bellovin, http://www.research.att.com/~smb