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Date:  Sun, 22 Jul 2007 17:34:34 +0200
From:  Michael Stauber <bq (at mark) solarspeed.net>
Subject:  [coba-e:10426] Re: fighting pdf/xls/... spam
To:  coba-e (at mark) bluequartz.org
Message-Id:  <200707221734.34718.bq (at mark) solarspeed.net>
In-Reply-To:  <00e001c7cc65$9d3fb630$6501a8c0@acerbaby>
References:  <00e001c7cc65$9d3fb630$6501a8c0@acerbaby>
X-Mail-Count: 10426

Hi Florian,

> not exactly on-topic, but does anyone here use the clam-av signatures from
> http://www.sanesecurity.co.uk to fight pdf-spam? please share your
> experiences ;) i am (like probably many others here) using michael
> stauber's av-spam pkg, but until now it is not working against the rising
> amounts of pdf/other document spam.

Run this command from the command line:

/usr/bin/sa-update --nogpg
/etc/init.d/spamassassin restart

That will download and install an updated rule set for SpamAssassin, which 
includes rules to counter the PDF-SPAM and also has some better rules for 
image-SPAM.

In the past I didn't advocate auto-updating SpamAssassin through "sa-update", 
as the quality of the updates was sometimes affecting stability of 
SpamAssassin. But so far it looks good and certainly a manual update once in 
a while as shown above can be recommended.

I experiemented with extra rules for Clam AV (which is what you asked for) to 
fight PDF-SPAM, but I would discourage using that method. I tested that on a 
production box and Clamd fell flat on it's face like four or five times a 
day. That stuff on itself is way too experimental for now. Give it some more 
time to get sorted and use "sa-update" instead for now.


-- 
With best regards,

Michael Stauber
http://www.solarspeed.net