Using ClamAV to find spam

Andy Wright mailscanner at eltofts.homelinux.com
Fri Aug 3 00:44:20 IST 2007


Scott Silva wrote:
> Andy Wright spake the following on 8/2/2007 4:09 PM:
>   
>> Brent Addis wrote:
>>     
>>> Try the clamav spamassassin plugin. If your spam scores high enough it
>>> shouldn't be virus scanned and won't scew your stats.
>>>  
>>> http://www.nabble.com/My-bash-script-to-upload-PDFinfo-daily,-safely-t4115144.html
>>> has an example about halfway through the comments at the bottom.
>>>  
>>>
>>>  
>>> ________________________________
>>>
>>> From: mailscanner-bounces at lists.mailscanner.info on behalf of Andy Wright
>>> Sent: Fri 3/08/2007 10:42 a.m.
>>> To: mailscanner at lists.mailscanner.info
>>> Subject: Using ClamAV to find spam
>>>
>>>
>>>
>>> Hi list,
>>>
>>> I've enabled the "ClamAV Full Message Scan" option and installed the
>>> sanesecurity sigs. Clam is nicely finding loads (and loads... and
>>> loads...!) of spam, but of course is causing all these messages to be
>>> tagged as Virused. This is  making my MailWatch screen a sea of red and
>>> skewing the stats such that I appear to be receiving loads of viruses
>>> instead of spam.
>>>
>>> Is it possible to get MailScanner to look at the report from ClamAV and
>>> determine if the message is really spam rather than virused ?
>>>
>>> Cheers,
>>> Andy.
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>>>
>>>   
>>>       
>> Hi Brent,
>>
>> thanks for the suggestion, although I'm reluctant to add yet more
>> plugins - most of the spams are already being scored at 20+  (how high
>> does this have to get before virus scanning is skipped?)
>>
>> I guess what I'm after is a way for MailScanner to handle things
>> differently if the return from ClamAV is "Email.*, Html.*" etc  Now that
>> Clam seems to be more than just a *virus* finder might it make sense for
>> MailScanner to look more closely at the returned result ?  Maybe an
>> excuse for Julian to up the options well beyond the 300 mark ?!
>>
>> Andy.
>>     
> AFAIK all their signatures give sanesecurity in their responses. Maybe an
> option to look for this and just give spam scores.
> For me, I don't really care right now what stops them, as long as it doesn't
> go to the users. Maybe later if I start reporting ratios to someone, I might.
>
>   
Most do, but there are a few along the lines of "Email.Phising.RB-1221"

I do report results to clients so this would be a nice thing to be able 
to correct.



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