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Re: Duplicate downloaded rules
From: "Weir, Jason" <jason.weir () nhrs org>
Date: Tue, 19 Oct 2010 11:44:04 -0400

Counterproductive indeed....
 
you might ask the same question over on the ET list.. They can give a
better explanation that I can..
 
-J  

        -----Original Message-----
        From: Lay, James [mailto:james.lay () wincofoods com] 
        Sent: Tuesday, October 19, 2010 11:28 AM
        To: snort-users () lists sourceforge net
        Subject: Re: [Snort-users] Duplicate downloaded rules
        
        

        Ok...thanks again Jason.  Also....I guess there's something I do
not understand as it relates to ET & VRT rules.  As I understand it:

         

        Snort VRT support 2.8.6.1 and 2.9.0

        ET support 2.4-2.8.6

         

        Is it just me or does this not make sense?  Why are ET rules
even bothering with unsupported versions of Snort, and not putting out
rules that are in line with supported versions of Snort?  I have to be
honest...from a home and business user, going from what used to be a
relatively easy rule management system, to what it is now has been
extremely time consuming and frustrating.  And, coming from someone who
has little knowledge of how the ET and VRT rulesets are
developed/maintained, I have to think that duplicate SID's seems to be
counterproductive.  I'll keep plodding along...thank you.

         

        James  

         

        From: Weir, Jason [mailto:jason.weir () nhrs org] 
        Sent: Tuesday, October 19, 2010 9:20 AM
        To: snort-users () lists sourceforge net
        Subject: Re: [Snort-users] Duplicate downloaded rules

         

        looks good - let me know if you have any problems..

         

        FYI - this might change if ET & VRT come up with a better
solution..

         

        -J

                -----Original Message-----
                From: Lay, James [mailto:james.lay () wincofoods com] 
                Sent: Tuesday, October 19, 2010 11:11 AM
                To: snort-users () lists sourceforge net
                Subject: Re: [Snort-users] Duplicate downloaded rules

                ....so let me understand this.  My current setup is:

                 

                /usr/local/bin/oinkmaster.pl -C
/usr/local/etc/snort/oinkmaster.conf -o /usr/local/etc/snort/rules

                /usr/local/bin/create-sidmap.pl
/usr/local/etc/snort/rules > /usr/local/etc/snort/sid-msg.map

                 

                I need to:

                Create separate directories for the two rulesets

                Change the above to reflect:

                 

                        /usr/local/bin/oinkmaster.pl -C
/usr/local/etc/vrt.conf -o /etc/snort/rules/vrt

                        /usr/local/bin/oinkmaster.pl -C
/usr/local/etc/et.conf -o /etc/snort/rules/et

                 

                        cp /etc/snort/rules/vrt/*.* /etc/snort/rules

                        cp /etc/snort/rules/et/*.* /etc/snort/rules

                Create two new oinkmaster conf files, the vrt.conf
containing what's in the attachment in the original post of the 410
rules.

                Modify create-sidmap.pl line 101 to reflect:

                 

                        next if ($single =~ /^\#/);

                 

                Have I missed anything?  Thanks Jason

                 

                 

                From: Weir, Jason [mailto:jason.weir () nhrs org] 
                Sent: Tuesday, October 19, 2010 8:19 AM
                To: snort-users () lists sourceforge net
                Subject: Re: [Snort-users] Duplicate downloaded rules

                 

                ET and VRT are publishing duplicate rules.

                 

                Read the "The New Rulesets are Ready!!" thread here

                 

        
http://lists.emergingthreats.net/pipermail/emerging-sigs/2010-October/th
read.html

                 

                Not sure if you use Oinkmaster but I posted a solution
in that thread.

                 

                -J

                        -----Original Message-----
                        From: Lay, James
[mailto:james.lay () wincofoods com] 
                        Sent: Tuesday, October 19, 2010 10:05 AM
                        To: snort-users () lists sourceforge net
                        Subject: [Snort-users] Duplicate downloaded
rules

                        I sent this to snort-sigs a few days ago, but it
got moderated into oblivion.  Here's a pruned down one in hopes it will
make it:

                         

                        I am seeing the below with grabbing these
rulesets:

                         

                        Downloading file from
http://www.snort.org/pub-bin/oinkmaster.cgi/*oinkcode*/snortrules-snapsh
ot-2900.tar.gz

                        Downloading file from
http://rules.emergingthreats.net/open/snort-2.8.6/emerging.rules.tar.gz

                         

                        WARNING: duplicate SID in downloaded archive,
SID=498, only keeping rule with highest 'rev'

                        WARNING: duplicate SID in downloaded archive,
SID=494, only keeping rule with highest 'rev'

                        WARNING: duplicate SID in downloaded archive,
SID=495, only keeping rule with highest 'rev'

                        WARNING: duplicate SID in downloaded archive,
SID=497, only keeping rule with highest 'rev'

                        <snip> many more of these

                        WARNING: duplicate SID in downloaded archive,
SID=1666, only keeping rule with highest 'rev'

                        WARNING: duplicate SID in downloaded archive,
SID=1988, only keeping rule with highest 'rev'

                        WARNING: duplicate SID in downloaded archive,
SID=1989, only keeping rule with highest 'rev'

                         

                        A grand total of 409 dup messages are seen even
as of this morning.  Maybe this one will make it through...

                         

                        James

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