Snort mailing list archives
Re: Post-Detection keyword [logto] not working
From: Emiliano Fausto <emiliano.fausto () gmail com>
Date: Mon, 13 Apr 2015 20:14:14 -0300
Hi James, thanks for the quick answer. Unfortunately I didn't configured the BINARY output, because the documentation of logto says that it doesn't work with binary. So the only output I set in the snort.conf was the alert_fast. Anyway, I also tried with alert_full, and log_tcpdump but nothing. Thanks! Emiliano. On Mon, Apr 13, 2015 at 6:50 PM, James Lay <jlay () slave-tothe-box net> wrote:
On 2015-04-13 03:27 PM, Emiliano Fausto wrote: Hi there, I'm having troubles to get the "logto" keyword working properly. I'm using snort version 2.9.7, and what I've tried was: 1) Just letting this rule in the snort.conf file: alert tcp any any <> any 8000 (content:"testing"; nocase; logto:testing; sid:1;) I started a web server, serving the file testing.txt listening in the port 8000, and issue a GET from a web-browser, but the SNORT didn't create a file called testing with the packet capture. Instead it created a snort.log.1231243 with this information. 2) I ran SNORT with user root (just to make sure it wasn't a permission problem) 3) I pre-created the file testing with: "touch /var/log/snort/testing" (because I read there were problems in the past with this). But the file was 0 bytes after the GET was issued. 4) I tried changing the place of the logto keyword, (first of all other keyword, after the last keyword, etc.) nothing. 5) I tried with: logto:"testing" logto:testing logto:"/var/log/snort/testing" But nothing worked. 6) When I changed the rule to this line: output alert_fast: /var/log/snort/alerts alert tcp any any <> any 8000 (content:"testing"; nocase; msg:"rule successful triggered"; sid:1;) It did generate the rule message "rule successful triggered" in /var/log/snort/alerts after issueing a GET with a browser. That's how I know it's being triggered correctly. But for some reason, the problem is when I try to use the logto. Does anyone has this post-detection keyword working? Does anyone experienced some trouble with it? I review all the 41 related mails in the snort-users list, but there's nothing there that helped me. I also think that could be useful the way I start the snort, I just reduced it to: snort -k none -i eth0 -c /etc/snort/snort.conf Is there anything I'm missing? I read once and again the snort manual, but there's nothing else I could find that give me a hint on this. Thanks in advance for any help you could give me on that. Emiliano. Betting you have something like this: output unified2: In your snort.conf. Per the docs: 3.7.1 logto The logto keyword tells Snort to log all packets that trigger this rule to a special output log file. This is especially handy for combining data from things like NMAP activity, HTTP CGI scans, etc. It should be noted that this option does not work when Snort is in binary logging mode. Unified is binary mode, so it looks like logging unified isn't going to work in conjunction with logto. Can someone on the list confirm this? James ------------------------------------------------------------------------------ BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15&utm_medium=email&utm_campaign=VA_SF _______________________________________________ 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!
------------------------------------------------------------------------------ BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15&utm_medium=email&utm_campaign=VA_SF
_______________________________________________ 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!
Current thread:
- Post-Detection keyword [logto] not working Emiliano Fausto (Apr 13)
- Re: Post-Detection keyword [logto] not working James Lay (Apr 13)
- Re: Post-Detection keyword [logto] not working Emiliano Fausto (Apr 13)
- Re: Post-Detection keyword [logto] not working James Lay (Apr 14)
- Re: Post-Detection keyword [logto] not working Emiliano Fausto (Apr 16)
- Re: Post-Detection keyword [logto] not working Al Lewis (allewi) (Apr 16)
- Re: Post-Detection keyword [logto] not working Emiliano Fausto (Apr 17)
- Re: Post-Detection keyword [logto] not working Emiliano Fausto (Apr 13)
- Re: Post-Detection keyword [logto] not working James Lay (Apr 13)