Snort mailing list archives
Re: Help with content rules looking for the absence of a hex pattern (large ICMP modification)
From: Erick Mechler <emechler () techometer net>
Date: Thu, 20 Feb 2003 10:51:58 -0800
:: Is there a typo or logic bug in my rule that isn't obvious? :: :: icmp.rules:alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"ICMP Large :: ICMP Packet"; dsize: >800; content:!"|000000000000000000000000|"; depth:40; :: reference:arachnids,246; classtype:bad-unknown; sid:1000499; rev:3;) No, there doesn't appear to be anything wrong with your signature. Just wondering, did you try using a version of snort out of CVS to see if it fixes your problem? Cheers - Erick ------------------------------------------------------- This SF.net email is sponsored by: SlickEdit Inc. Develop an edge. The most comprehensive and flexible code editor you can use. Code faster. C/C++, C#, Java, HTML, XML, many more. FREE 30-Day Trial. www.slickedit.com/sourceforge _______________________________________________ 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:
- Help with content rules looking for the absence of a hex pattern (large ICMP modification) Matt Kettler (Feb 19)
- Re: Help with content rules looking for the absence of a hex pattern (large ICMP modification) Erick Mechler (Feb 20)