Snort mailing list archives
Re: geting this rule to work
From: JJC <cummingsj () gmail com>
Date: Sat, 1 Dec 2012 08:23:51 -0600
My best suggestion after all of this, capture the packets that you want to detect (using wireshark or tcpdump) and review them using wireshark so that you understand them, then begin to write your rule(s) for detection. Sent from my iPad On Nov 30, 2012, at 15:37, Akinwale Fasuru <fashman2k1 () yahoo com> wrote:
Hello, Here is what i came up with: alert icmp any any -> any any (msg:"Traceroute command attempted"; itype:<30; icode:<30; ttl:<30; sid:1000007) it seem to work. But i need to write same rule for Windows OS, is it going to be the same thing or what needs to be changed? Wale --- On Thu, 11/29/12, Giles Coochey <giles () coochey net> wrote:From: Giles Coochey <giles () coochey net> Subject: Re: [Snort-users] geting this rule to work To: snort-users () lists sourceforge net Date: Thursday, November 29, 2012, 2:33 PM On 29/11/2012 20:27, Jeremy Hoel wrote:Your rule is for all IP traffic, not just ICMPtraffic.. then itlooks for any packet with a ttl <3 and it triggers. Try changing the rule for just icmp, then you can tweakit even moreso with ICMP types and codes, not just ttl. There is (was? I use pp so i forget) a ICMP.rules filesthat you canlook at for examples.Don't most Unices use UDP for traceroute? -- Regards, Giles Coochey, CCNA, CCNAS NetSecSpec Ltd +44 (0) 7983 877438 http://www.coochey.net http://www.netsecspec.co.uk giles () coochey net -----Inline Attachment Follows----- ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: VERIFY Test and improve your parallel project with help from experts and peers. http://goparallel.sourceforge.net -----Inline Attachment Follows----- _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://sourceforge.net/mailarchive/forum.php?forum_name=snort-users Please visit http://blog.snort.org to stay current on all the latest Snort news!------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: TUNE You got it built. Now make it sing. Tune shows you how. http://goparallel.sourceforge.net _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://sourceforge.net/mailarchive/forum.php?forum_name=snort-users Please visit http://blog.snort.org to stay current on all the latest Snort news!
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Current thread:
- geting this rule to work Akinwale Fasuru (Nov 29)
- Re: geting this rule to work Jeremy Hoel (Nov 29)
- Re: geting this rule to work Giles Coochey (Nov 29)
- Re: geting this rule to work Jeremy Hoel (Nov 29)
- Re: geting this rule to work Marcos Rodriguez (Nov 29)
- Re: geting this rule to work Jeremy Hoel (Nov 29)
- Re: geting this rule to work Giles Coochey (Nov 29)
- Re: geting this rule to work Marcos Rodriguez (Nov 29)
- Re: geting this rule to work waldo kitty (Nov 29)
- Re: geting this rule to work Akinwale Fasuru (Nov 30)
- Re: geting this rule to work JJC (Dec 01)
- Re: geting this rule to work waldo kitty (Dec 01)
- Re: geting this rule to work Jeremy Hoel (Dec 02)
- Re: geting this rule to work Jeremy Hoel (Nov 29)
- <Possible follow-ups>
- Re: geting this rule to work Y M (Nov 29)