Snort mailing list archives
Re: False positives
From: Joel Esler <jesler () sourcefire com>
Date: Wed, 22 Aug 2012 11:01:29 -0400
On Aug 22, 2012, at 7:22 AM, Philip Edwards <phil.e () clara net> wrote:
Hi everyone, For some reason my web browsing is triggering this alert: COMMUNITY SIP TCP/IP message flooding directed to SIP proxy The rule states that the destination port should be 5060. Here's an example from the tcpdump of some traffic that triggered it: 11:32:42.061722 IP www.iana.org.http > 192.168.1.2.33636: Flags [P.], seq 671861960:671862675, ack 1684832370, win 4637, options [nop,nop,TS val 1306801397 ecr 3575], length 715 2:02:45.257090 IP ubuntu.datahop.net.http > 192.168.1.2.38676: Flags [.], seq 2045446811:2045448217, ack 4063795559, win 158, options [nop,nop,TS val 428843889 ecr 454408], length 1406
So I am guessing you are running debian or ubuntu or something (one of these distros builds in the COMMUNITY rules). I'd recommend using pulledpork to download the latest ruleset from Snort.org, and erase all of those old COMMUNITY rules. -- Joel Esler Senior Research Engineer, VRT OpenSource Community Manager Sourcefire ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ 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://www.geocrawler.com/redir-sf.php3?list=snort-users Please visit http://blog.snort.org to stay current on all the latest Snort news!
Current thread:
- False positives Philip Edwards (Aug 22)
- Re: False positives Joel Esler (Aug 22)