Snort mailing list archives
Re: shellcode_ports
From: Joel Esler <joel.esler () sourcefire com>
Date: Wed, 24 May 2006 11:58:17 -0400
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 You must specify a different rule include after each port specification. The example in the Snort.conf is correct. Joel Gentoo-Wally wrote:
Is there a better way to define SHELLCODE_PORTS other than !80? All the sig's using this var show.. $EXTERNAL_NET $SHELLCODE_PORTS -> $HOME_NET any If we really want to look for shellcode to any port from every port but 80 then why not on 80 also? Or why not also exclude 8080 and 443 (or any other encrypted ports like 22) Assuming this works the same way as HTTP_PORTS... var SHELLCODE_PORTS !80 var SHELLCODE_PORTS !8080 var SHELLCODE_PORTS !443 var SHELLCODE_PORTS !22 Or even var SHELLCODE_PORTS !80 var SHELLCODE_PORTS !8080 var SHELLCODE_PORTS !443 var SHELLCODE_PORTS !22 var EXCLUDE !22 var EXCLUDE !443 and rewriting these sigs with oinkmaster to be... $EXTERNAL_NET $SHELLCODE_PORTS -> $HOME_NET $EXCLUDE Since looking for shellcode on encrypted traffic is kind of a waste of time, right? What are others doing for this? This brings up another point... the snort.conf shows defining these port options for multiple ports like this... ## var HTTP_PORTS 80 ## include somefile.rules ## var HTTP_PORTS 8080 ## include somefile.rules is specifying an include after each port defined necessary or is the following adequate? var HTTP_PORTS 80 var HTTP_PORTS 8080 ... include somefile.rules using snort 2.4.4 Thx, Wally ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=k&kid7521&bid$8729&dat1642 _______________________________________________ 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=ort-users
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEdIKZKbCSyXHckt4RArkXAKCRcrK5gwT39TSyBQTIDhQuvYxvfQCfUBKr 1uzYL7J529eS/9i0/3QSv9Y= =CbcJ -----END PGP SIGNATURE----- ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 _______________________________________________ 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
Current thread:
- shellcode_ports Gentoo-Wally (May 24)
- Re: shellcode_ports Joel Esler (May 24)
- Re: shellcode_ports Gentoo-Wally (May 24)
- Re: shellcode_ports Leon Ward (May 25)
- Re: shellcode_ports Gentoo-Wally (May 24)
- Re: shellcode_ports Joel Esler (May 24)