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Re: Re: Strange mail with number in subject line and body

from [Christine Kronberg] Network Security [Permanent Link]
Subject: Re: Re: Strange mail with number in subject line and body
Date: Wed, 7 Jun 2006 15:47:36 +0200 (CEST) 
On Wed, 7 Jun 2006, junkmail@babtras.com wrote:


They are not from any particular IP. 3 that I looked at came from a Bell South IP, an IP in RIPE, and an IP in APNIC. Seems to be a bot network.

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.

  Cheers,

  Christine Kronberg.


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