Snort mailing list archives
Re: [AUTO IP] Re: Question about content
From: Paul Schmehl <pschmehl_lists () tx rr com>
Date: Tue, 01 Dec 2009 13:23:27 -0600
I saw that. The point is, you didn't come close to answering the OP's question. Forget the assumptions you made, you looked for a word 4 bytes into the packet. That wasn't what he asked for. He asked how he could find the pattern at_the_end_of_the_packet without knowing the packet length. The rest is irrelevant. --On Tuesday, December 01, 2009 11:46:04 -0600 evilghost () packetmail net wrote:
Paul, since you failed at reading comprehension, here would be the *critical* statement I made *before* I supplied the rule, as an example of how PCRE could be used to detect what the OP has requested: "Making assumptions about direction, protocol, and content I would try something like this:" I do appreciate your gems of wisdom concerning the ip based rule.
-- Paul Schmehl, Senior Infosec Analyst As if it wasn't already obvious, my opinions are my own and not those of my employer. ******************************************* "It is as useless to argue with those who have renounced the use of reason as to administer medication to the dead." Thomas Jefferson ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Snort-sigs mailing list Snort-sigs () lists sourceforge net https://lists.sourceforge.net/lists/listinfo/snort-sigs
Current thread:
- Re: Question about content, (continued)
- Re: Question about content Nigel Houghton (Dec 01)
- Re: Question about content Matt Olney (Dec 01)
- Re: Question about content evilghost () packetmail net (Dec 01)
- Re: Question about content Nigel Houghton (Dec 01)
- Re: Question about content Chris Jacob (Dec 01)
- Re: Question about content Matt Olney (Dec 01)
- Re: Question about content evilghost () packetmail net (Dec 01)
- Re: Question about content Alex Kirk (Dec 01)
- Re: Question about content Matt Olney (Dec 01)
- Re: Question about content Paul Schmehl (Dec 01)
- Re: [AUTO IP] Re: Question about content evilghost () packetmail net (Dec 01)
- Re: [AUTO IP] Re: Question about content Paul Schmehl (Dec 01)
- Re: [AUTO IP] Re: Question about content Matt Olney (Dec 01)
- Re: [AUTO IP] Re: [AUTO IP] Re: Question about content evilghost () packetmail net (Dec 01)
- Re: Question about content Nigel Houghton (Dec 01)