Snort mailing list archives
Re: Possible FP 17363
From: "Weir, Jason" <jason.weir () nhrs org>
Date: Tue, 26 Oct 2010 10:20:49 -0400
have to see your oinkmaster.conf and snort.con -J -----Original Message----- From: Lay, James [mailto:james.lay () wincofoods com] Sent: Tuesday, October 26, 2010 10:13 AM To: snort-sigs () lists sourceforge net Subject: Re: [Snort-sigs] [Spam] Re: Possible FP 17363 Hrmm....that's confusing then...oinkmaster says: Loading /usr/local/etc/snort/oinkmaster.conf Downloading file from http://www.snort.org/pub-bin/oinkmaster.cgi/*oinkcode*/snortrules-snapsh ot-2900.tar.gz... done. Archive successfully downloaded, unpacking... done. Downloading file from http://rules.emergingthreats.net/open-nogpl/snort-2.8.6/emerging.rules.t ar.gz... done. Archive successfully downloaded, unpacking... done. Setting up rules structures... done. Processing downloaded rules... disabled 8, enabled 0, modified 0, total=21693 Setting up rules structures... done. Comparing new files to the old ones... done. Updating local rules files... done. Yet: [08:11:48 me@ids:~/rules$] sudo grep 17363 *.rules web-client.rules:alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"WEB-CLIENT Apple computer finder DMG volume name memory corruption"; flow:to_client,established; content:"|4C 41 42 4C|"; byte_test:2,>,254,12,relative; metadata:policy balanced-ips drop, policy security-ips drop, service http; reference:cve,2007-0197; classtype:attempted-user; sid:17363; rev:1;) Are rules not getting updated in 2900? Or is my oinkmaster not doing what it's supposed to do? Thanks for any help. James From: Alex Kirk [mailto:akirk () sourcefire com] Sent: Monday, October 25, 2010 10:44 AM To: rmkml Cc: Lay, James; snort-sigs () lists sourceforge net; rmkml () free fr Subject: [Spam] Re: [Snort-sigs] Possible FP 17363 Importance: Low Actually, this rule is currently at rev:3 - adding a flowbit check and some additional bytes to the content match - due to earlier false positive reports. If you get further FPs with the current revision of the rule, please let us know. On Mon, Oct 25, 2010 at 12:38 PM, rmkml <rmkml () yahoo fr> wrote: Hi James, maybe for "small" reduce FP add "isdataat:255,relative;" after byte_test()? another maybe null byte are separator? and instead "isdataat:255,relative; content:!"|00|"; within:255;" ? Regards Rmkml PS: http://www.securityfocus.com/archive/1/archive/1/456578/100/0/threaded _____________________________________________________________________________________________ Please visit www.nhrs.org to subscribe to NHRS email announcements and updates.
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Current thread:
- Possible FP 17363 Lay, James (Oct 25)
- Re: Possible FP 17363 rmkml (Oct 25)
- Re: Possible FP 17363 Alex Kirk (Oct 25)
- Re: [Spam] Re: Possible FP 17363 Lay, James (Oct 26)
- Re: Possible FP 17363 Weir, Jason (Oct 26)
- Re: [Spam] Re: Possible FP 17363 Joel Esler (Oct 26)
- Re: [Spam] Re: Possible FP 17363 L0rd Ch0de1m0rt (Oct 26)
- Re: [Spam] Re: Possible FP 17363 Joel Esler (Oct 26)
- Re: Possible FP 17363 Alex Kirk (Oct 25)
- Re: Possible FP 17363 rmkml (Oct 25)
- <Possible follow-ups>
- Re: Possible FP 17363 Lay, James (Oct 26)
- Re: Possible FP 17363 Weir, Jason (Oct 26)
- Re: Possible FP 17363 Joel Esler (Oct 26)
- Re: [Spam] Re: Possible FP 17363 Lay, James (Oct 26)
- Re: [Spam] Re: Possible FP 17363 Weir, Jason (Oct 26)
- Re: [Spam] Re: Possible FP 17363 Joel Esler (Oct 26)