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Re: spam with anti-bayesian parts


From: Nick FitzGerald <nick () virus-l demon co uk>
Date: Tue, 13 Jan 2004 01:11:40 +1300

vogt () hansenet com wrote:

<<snip>>
What I'm wondering is:
Why do the spammers even go to the length of using random words? Those are
easy to filter out with some heuristics (e.g. missing punctuation). Why
don't they grab some real text, say from a news site? There's an endless
supply of new, proper text out there.

...and some of them have been using some of it.

That is not a new idea.  Spam with "normal text" filler "stolen" from 
various sources has existed for a while.  The problem with this typeof 
thing is that to hide the extra text (so it does not interfere with the 
desired message) they have to put ti in a really small font and/or make 
the font colour (very close to) the message background.  (Of course, if 
you use a text-only MUA you will either see nothing (because the spam 
contains no text/plain component) or the gibberish or stolen text.

In theory the existence of the HTML markup to perform either of the 
"hiding" tricks should quickly gain high spam-specificity value...


Regards,

Nick FitzGerald

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