Re: [Snort-users] preprocessor's rules?

This is a discussion on Re: [Snort-users] preprocessor's rules? within the Snort forums, part of the System Security and Security Related category; (I removed the useless extra "?"s from the subject, if this breaks your threading try using a real ...


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Old 04-15-2008
Nigel Houghton
 
Posts: n/a
Default Re: [Snort-users] preprocessor's rules?


(I removed the useless extra "?"s from the subject, if this breaks your
threading try using a real MUA)

On 4/15/08 1:36 AM, "Rachmat Hidayat Al-Anshar"
<rachmat_hidayat_02@yahoo.com> wrote:

> Hi all.... :)
>
> I just want to know more about this following line on
> snort configurations file..
> var PREPROC_RULE_PATH ../preproc_rules
>
> what is preprocessor rules are??
> and then, since I know that Snort's preprocessor only
> use plug-ins for its
> process, is it something that I missed about this
> "rules" for preprocessor...
>
> Any response supporting this question will greatly
> appreciated
> Thanks in advance
> Rachmat Hidayat Al Anshar


>From the ChangeLog:


2007-08-30 Steven Sturges <ssturges@sourcefire.com>

<snip>

Added support to provide action control (alert, drop, pass, etc)
over preprocessor and decoder generated events, as well as references
and classifications via a rule. These rules do not include IP
addresses as the individual preprocessor/decoder configuration
dictates the traffic to which an event applies. In conjunction
with this, certain post-processing rule options (tag, logto, etc)
may be added to those rules, while other options that relate to data
inspection (content, byte_test, etc) may not. Enable via
--enable-decoder-preprocessor-rules option to configure.

Been there for a while.

--
Nigel Houghton
Resident Hooligan
SF VRT


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