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botnets: web servers, end-systems and Vint Cerf
On Thu, 15 Feb 2007 Valdis.Kletnieks@xxxxxx wrote: > On Thu, 15 Feb 2007 19:02:12 CST, Gadi Evron said: > > Many of them are SMTP-based only. IP reputation is very limited still. > > > > Now, all that said, back on "most are broadband users" - no longer > > true. Many bots (especially in spam) are now web servers. > > I'm willing to bet that most are *still* broadband users. Quite likely, Oh, safe bet. :) > even if 100% (yes, *every single last one*) of the "web servers" out there > were botted, that would likely still be less systems than if only 5% of end-user But not less spam? :) I seriously doubt more spam is sent from web servers than user systems, but it's changing. Web servers now play a part which we can notice and measure. > systems were botted. Just a little while back, Vint Cerf guesstimated that > there's 140 million botted end user boxes. Unless 100% of Google's servers > are botted, there's no way there's that many botted servers. :) I kept quiet on this for a while, but honestly, I appreciate Vint Cerf mentioning this where he did, and raising awareness among people who can potentially help us solve the problem of the Internet. Still, although I kept quiet for a while, us so-called "botnet experts" gotta ask: where does he get his numbers? I would appreciate some backing up to these or I'd be forced to call him up on his statement. My belief is that it is much worse. I am capable of proving only somewhat worse. His numbers are still staggering so.. where why when how what? (not necessarily in that order). So, data please Vint/Google. > And the fact that web servers are getting botted is just the cycle of > reincarnation - it wasn't that long ago that .edu's had a reputation of > getting pwned for the exact same reasons that webservers are targets now: > easy to attack, and usually lots of bang-for-buck in pipe size and similar. You mean they aren't now? Do we have any EDU admins around who want to tell us how bad it still is, despite attempts at working on this? Dorms are basically large honey nets. :) Gadi.