Security Incidents mailing list archives
Re: Re: Strange mail with number in subject line and body
From: "Jamie Riden" <jamesr () europe com>
Date: Thu, 8 Jun 2006 11:05:45 +1200
On 08/06/06, Christine Kronberg <seeker () shalla de> wrote:
On Wed, 7 Jun 2006, junkmail () babtras com wrote: > My best guess is that this is meant to poison the statistics of bayesian mail filters and trick them into letting spam through. Do you really think a few mails with just a number in it will have a noticeable effect on the filters? To me it seems more likely that someone uses a bot net for address verification and list washing.
Indeed - most Bayesian techniques I have seen will only look at the n most 'useful' words in determining whether it's spam or not spam. I just can't see any feasible way to poison this sort of scheme. cheers, Jamie -- Jamie Riden / jamesr () europe com / jamie.riden () computer org NZ Honeynet project - http://www.nz-honeynet.org/ ------------------------------------------------------------------------------ This List Sponsored by: Black HatAttend the Black Hat Briefings & Training USA, July 29. August 3 in Las Vegas. World renowned security experts reveal tomorrow.s threats today. Free of vendor pitches, the Briefings are designed to be pragmatic regardless of your security environment. Featuring 36 hands-on training courses and 10 conference tracks, networking opportunities with over 2,500 delegates from 40+ nations.
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Current thread:
- Strange mail with number in subject line and body paul.johnson8 () gmail com (Jun 06)
- RE: Strange mail with number in subject line and body Poof (Jun 06)
- RE: Strange mail with number in subject line and body Trevor Jennings (Jun 06)
- Re: Strange mail with number in subject line and body Russell Fulton (Jun 06)
- Re: Strange mail with number in subject line and body Jamie Riden (Jun 06)
- RE: Strange mail with number in subject line and body Tim Boyer (Jun 07)
- Re: Strange mail with number in subject line and body Isaac Perez (Jun 07)
- <Possible follow-ups>
- Re: Re: Strange mail with number in subject line and body junkmail (Jun 06)
- Re: Re: Strange mail with number in subject line and body Christine Kronberg (Jun 07)
- Re: Re: Strange mail with number in subject line and body Jamie Riden (Jun 07)
- Message not available
- Re: Strange mail with number in subject line and body Anthony Petito (Jun 07)
- Re: Re: Strange mail with number in subject line and body Christine Kronberg (Jun 07)
- RE: Strange mail with number in subject line and body Poof (Jun 06)
- RE: Strange mail with number in subject line and body Shaffer, Bruce (Jun 07)
- Re: Re: Strange mail with number in subject line and body paul . french (Jun 07)
- Re: Strange mail with number in subject line and body Jesse Gough (Jun 07)
- RE: Re: Strange mail with number in subject line and body Latalladi, Eric (Jun 08)