David wrote:
> The idea is that there are additional clamd definitions one can use to 
> scan for spam such as the MSRBL definitions ( http://www.msrbl.com/site/ 
> ) and the SaneSecurity definitions ( 
> http://www.sanesecurity.co.uk/clamav/ ) that have been discussed here 
> earlier.
> 
> These definitions allow one to use clamd to scan for spam in a 
> definitions-based manner. They pick up spam (pharm, oem, etc), scams 
> (lotto, 419, phishing, job offer, loan, mortgage), image spam, pdf spam, 
> and various others. They are highly effective and carry very little risk 
> of false-positives due to the strict definition-based nature of the 
> detection.
> 
> Here are a few log snippets to show what I mean:
> 
<snip>
> 
> And regular viruses look like this
> 
> Jul-25-07 03:39:47 ... Trojan.Downloader-11827
> 
> I'm actually having a really hard time finding actual viruses in my 
> logs. Looking through my logs, I find that the spam caught by clamd far 
> far outweighs the real viruses caught by clamd. Numbers like 1000:1 come 
> to mind.

My experience as well. Most viruses never get past delaying. I've had 
maybe 3 virus hits on my exchange server since I started using ASSP(over 
a year).

> The use of virus scoring with regexes would allow one to score the 
> email/html "viruses" differently from the 
> trojan/worm/flooder/backdoor/etc real viruses. Perhaps even coming to 
> the point of scoring "Email.Img" differently from "Html.Phishing". It's 
> all the same to me, though. I'm fine with a virus hit being blocked 
> outright because the definitions are rather fool-proof and so far have 
> not resulted in any false positives for me.

Interesting.

> I hope that covered everything.
> 

I find it amusing that this messages was flagged as spam by ThunderBird. :)

  Kevin

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