full-disclosure - Comment Spam: new trends, failing counter-measures and why it's a big deal

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Date: Mon Feb 13 05:32:26 2006
From: gareth.davies at mynetsec.com (Gareth Davies)
Subject: Comment Spam: new trends,
	failing counter-measures and why it's a big deal

php0t wrote
>
>   Yep.. I repeat. 'Big part of the problem'. Which is nowhere near
> 'singularly successful solution'.
>
> Let's suppose 20% of that spam you see is posted by people doing this
> all day, getting paid for it. It's probably much less, but this is all a
> guess, nothing more. Would it not be a solution for the other 80% ?
>   Of course, if you have some statistics that tell me I terribly
> underestimated that overestimation of 20%, or just introduce new
> elements that I did not consider, do not hesitate to show it to me, I'm
> happy with accepting facts.
>
> php0t
>
>
> _______________________________________________
> Full-Disclosure - We believe in it.
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>
>   
And a friend of mine has already written a PHP class using GD that can 
beat 80-90% of common CAPTCHA implementations.

It's not a particularly complex algorithm.

What's to stop the spammers investing a little more money.

Anyway I have a high traffic blog and I have found since the advent of 
Wordpress 2.0, Akismet has been extremely successful against even the 
latest most human like spam.

Spam Karma 2 before that was of course the king.

-- 
Gareth Davies - BS7799 LA, OPST

Manager - Security Practice

Network Security Solutions MSC Sdn. Bhd.
Suite E-07-21, Block E, Plaza Mont' Kiara, No. 2 Jalan Kiara,
Mont? Kiara, 50480
Kuala Lumpur, Malaysia 
Phone: +603-6203 5303 or +603-6203 5920

www.mynetsec.com