Re: Interested in developing a preprocessor; want all the documentation I can get.

[Bill Reimer <breimer273 () gmail com>]

Went down this path a few years ago. I couldn't find any documentation
then, I don't know if there is any now. Even posted in this mailing list,
still no dice. Anyway, the best advice I can give is to look at a
preprocessor that is included with snort and take a look at how that is
built. I believe it is either a compile time option or a run time option
that you will also need to add your preprocessor to the list. It sounds
like what you want to do would be good to do in a preprocessor. Keep in
mind there are other preprocessors that do useful things, like there is one
that will tell snort to ignore SSL traffic. Good luck! I will keep watching
this in case anyone else has any other ideas.


On Mon, Aug 12, 2013 at 10:34 PM, Rodrigo Montoro(Sp0oKeR) <
spooker () gmail com> wrote:

> Take a look at host attribute tables http://manual.snort.org/node22.html
>
> Anyway this tool with nmap do something similar what you want I guess but
> not analyzing traffic is passing on snort.
>
>
> http://global-security.blogspot.com.br/2010/02/hogging-snort-host-attribute-table.html
>
> Maybe studying DAQ you could get hook you want easier than a preproc.
> Anyway as I said before I'm not a devel so I'm just looking as a infosec
> guy.
>
> Good luck!
>
> regards,
>
>
> On Mon, Aug 12, 2013 at 10:52 PM, Tony Robinson <
> deusexmachina667 () gmail com> wrote:
>
> > this gives me a good starting point... Do you or anyone else for that
> > matter know if the starter kit is compatible with the latest snort
> > versions? I'm assuming so, since the web page refers to snort 2.9.4.x while
> > the text doc in the tarball refers to snort 2.9.0.x
> >
> > also specifically what I'm looking to do is take normalized traffic in
> > either a passive or inline config and pass the cleaned up/reassembled
> > traffic to prads or p0f for more accurate host detection, and in turn prads
> > or p0f could be used to build more accurate stream 5 or frag 3 host
> > policies.. makes sense, no?
> >
> >
> > On Mon, Aug 12, 2013 at 9:27 PM, Rodrigo Montoro(Sp0oKeR) <
> > spooker () gmail com> wrote:
> >
> > > I'm not a devel but for sure this url will help you =)
> > >
> > > http://www.snort.org/snort-downloads/dynamic-preprocessor-starter-kit/
> > >
> > > Regards,
> > >
> > >
> > > On Mon, Aug 12, 2013 at 10:23 PM, Tony Robinson <
> > > deusexmachina667 () gmail com> wrote:
> > >
> > > > Title really says it all.
> > > >
> > > > Sorry for cross posting this into both users and the devel mailing
> > > > list, but I'm looking to get as many sets of eyes as I can here.
> > > >
> > > > Do any of you have any experience developing snort preprocessors? I
> > > > would like to try my at rolling one of my own, or figuring out how to pass
> > > > normalized/preprocessed traffic to other network inspection tools -- to be
> > > > quite honest, I have no idea what I'm doing  and am not sure if a
> > > > preprocessor would be necessary to do this or not.
> > > >
> > > > I know that for the most part, there are readmes included with most of
> > > > the source code, but if anyone has anymore solid documentation on how to do
> > > > something like this, I need all the documentation I can get.
> > > >
> > > >
> > > >
> > > > --
> > > > when does reality end? when does fantasy begin?
> > > >
> > > >
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> > > > _______________________________________________
> > > > Snort-devel mailing list
> > > > Snort-devel () lists sourceforge net
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> > >
> > >
> > >
> > > --
> > > Rodrigo Montoro (Sp0oKeR)
> > > http://spookerlabs.blogspot.com
> > > http://www.twitter.com/spookerlabs
> > > http://www.linkedin.com/in/spooker
> >
> >
> >
> > --
> > when does reality end? when does fantasy begin?
>
>
>
> --
> Rodrigo Montoro (Sp0oKeR)
> http://spookerlabs.blogspot.com
> http://www.twitter.com/spookerlabs
> http://www.linkedin.com/in/spooker
>
>
> ------------------------------------------------------------------------------
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