On Wed, 2006-08-16 at 05:49 -0400, John Hinton wrote: > I keep seeing 'Joe Average compromised computer on broadband' being used > to do email dictionary attacks on our systems. Seems I always have > several domains going through these. One in particular has been in the > 'a-' list for weeks with about 20,000 attempts per day from various > systems. Yeah, I do have a system which blocks email from these systems > for a period of time after 3 bad email address attempts.... throttling... > > Anyway, this brought to mind.... Joe Average! Joe Average buys a > broadband connection, has someone hook up his computer.. talks to tech > support about everything and eventually, an AV subscription dies or > something and Joe just doesn't care or doesn't know how to deal with > that. Meanwhile Joe's computer gets a virus allowing some baddy to start > sending email. Joe notices his computer is getting a little slow.. but > it's not bad enough to worry about. > > So, this made me start wondering about how to do something that makes > Joe's computer so slow that he finally gives up and calls in tech > support to fix the damned thing. > > I wonder if there is a way that a firewall rule could be written, that > would let a trickle of the connection from Joe through, so as his > dictionary attack gets backed up with a huge number of connections which > are trickling through at such a slow rate, with maybe just enough delay > built in to make it keep trying.... Basically making Joe's compromised > computer useless.. and maybe he'd at least turn it off if it didn't lock > up all by itself.... > > It is so very sad that some providers don't monitor their own people. I > see where comcast has now slid down to number 8 after holding the number > one spot as the biggest spammer network for a very long time. Good for > them! It seems the undisputed king of this world now is > verizonbusiness.com.... bad bad very bad.... > > Sorry.. yeah.. a bit off topic...... > > John Hinton > _______________________________________________ Don't be sorry, John, I'm gettin pissed bout spam myself...I am thinking about coming up w/a way to somehow forward the spam msg back to who ever is relaying it 10 fold to get their attn! John Rose _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos