[Snort-users] deploying ClamAV with Snort IDS

Will Metcalf william.metcalf at ...11827...
Mon Feb 1 12:46:39 EST 2010

If you are interested in stopping viruses in http/ftp traffic with ClamAV I
suggest you have a look at HAVP.  They do this better than we did, the
problem being that ClamAV expects a file so unless you do some serious work
writing protocol dissectors to hand it something in a format it expects,
most of the time it will only find viruses in protocols where the file
starts at the beginning of the payload i.e. (no application headers
present).  We add some rudimentary support for http but HAVP is way more



On Mon, Feb 1, 2010 at 11:24 AM, Alan Brennan <alanbrennan1 at ...11827...>wrote:

> Hi guys,
> I wish to deploy Snort in IDS mode (sitting off a tap), but I also want to
> have detection of viruses, spyware, malware, etc.
> Apparently it is possible to integrate the Clam AntiVirus system with
> Snort.
> However, does Snort have to be deplpoyed in Inline (IPS) mode to avail of
> the ClamAV preprocessor? Can I install ClamAV when Snort is running in
> passive/IDS mode?
> Also, can ClamAV module be used not only to detect viruses or malicious
> code but also to drop/block these viruses?
> Thanking you inadvance.
> Alan
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