[ale] Intelligent Spammers

Rev. Johnny Healey rev.null at gmail.com
Wed Oct 25 10:10:08 EDT 2006


They're replacing the actual spam content with images and filling the e-mail
with markov-chain generated text.  It's meant to fool bayesian classifiers.
To make things more complicated, flagging enough of this stuff as spam will
confuse your filter and lead to false positives.

-Johnny

On 10/25/06, KingBahamut <gwosbahamut at gmail.com> wrote:
>
> I would aggree, time to tweak.
>
>
> On 10/25/06, Christopher Fowler <cfowler at outpostsentinel.com> wrote:
> >
> > Lately spamassasin has been failing.  I think it is because some of
> > these spammers are getting very creative.  Some way they know what I do
> > and send subject lines with the words that are technical.  My guess is
> > that they harvest an address from a mailing list.  Look at the archives
> > and harvest words from the subject list.  Use those words to compose a
> > subject that makes no sense but will pass the test.  I'm getting many
> > "Serious Letter.  You have to read".  So many to the point I may tell
> > procmail to send all emails with the subject "*You have to read*" to the
> >
> > bit bucket.  It might be time to tune spamassassin?
> >
> > _______________________________________________
> > Ale mailing list
> > Ale at ale.org
> > http://www.ale.org/mailman/listinfo/ale
> >
>
>
>
> --
> KingBahamut
> http://doc.gwos.org - Definitive Ubuntu Documentation
> "I could tell you the probability, but you wouldnt like it."
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> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
>
>
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