Snort mailing list archives
Re: Local.Rules rule misfiring
From: James Lay <jlay () slave-tothe-box net>
Date: Tue, 26 Apr 2016 08:29:02 -0600
On 2016-04-26 08:05, Clint Conner wrote:
Greetings, I have the following rule added to my local.rules file. The rule it replaces is disabled in disabledsids.conf. The rule is firing incorrectly, though. It alerts on the first IP address, which is 188.172.212.76. If I understand he rule correctly, it should not be alerting on this IP address. alert tcp $HOME_NET any -> [!188.172.212.76,!208.87.232.0/21,$EXTERNAL_NET] $HTTP_PORTS (msg:"ET MALWARE User-Agent (Mozilla/4.0 (compatible))";flow:to_server,established; content:"User-Agent|3a| Mozilla/4.0 (compatible|29 0d 0a|"; fast_pattern:18,20; http_header; content:!"citrixonline.com"; http_header; reference:url,doc.emergingthreats.net/bin/view/Main/2008974; classtype:Trojan-activity; sid:900000010;rev:1;) There are more IP address ranges that are ! out, but I have omitted them. I copied the rule directly from the pulledpork file and just added the first IP address to it. I still have alerts pouring in when anything goes to that first IP address. Thank you, -Clint ************************* Clint J. Conner Managed Services Manager Plummer Slade, Inc. _"Computer Networking & IT Solutions"_ 428 Forbes Avenue, Suite 2450 [1] Pittsburgh, PA 15219 [1] Tel: 412.261.5600 x215 [2] Fax: 412.261.1528 [3] conner () plummerslade com www.plummerslade.com [4] _ _ _“EXCLUSIVELY ENDORSED FOR IT SOLUTIONS BY THE ALLEGHENY COUNTY BAR ASSOCIATION (ACBA).”_ Links: ------ [1] x-apple-data-detectors://3/0 [2] tel:412.261.5600;215 [3] tel:412.261.1528 [4] http://www.plummerslade.com/ ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Snort-sigs mailing list Snort-sigs () lists sourceforge net https://lists.sourceforge.net/lists/listinfo/snort-sigs http://www.snort.org Please visit http://blog.snort.org for the latest news about Snort!
Check out detection filters: http://manual-snort-org.s3-website-us-east-1.amazonaws.com/node34.html#detection_filter James ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Snort-sigs mailing list Snort-sigs () lists sourceforge net https://lists.sourceforge.net/lists/listinfo/snort-sigs http://www.snort.org Please visit http://blog.snort.org for the latest news about Snort!
Current thread:
- Local.Rules rule misfiring Clint Conner (Apr 26)
- Re: Local.Rules rule misfiring James Lay (Apr 26)
- Re: Local.Rules rule misfiring Rodgers, Anthony (DTMB) (Apr 29)
- Re: Local.Rules rule misfiring Clint Conner (Apr 29)