Snort mailing list archives
Re: Snort Detect Binary Transfer
From: "Keith W. McCammon" <mccammon () gmail com>
Date: Tue, 13 Jul 2004 13:56:23 -0400
Does anyone know of a rule to detect if any binary transfer is occuring?
If you're looking for a specific binary, you may be able to do that. But to detect a binary transfer (independent of transport protocol), it would hard to distinguish, for the obvious reasons. Snort sees the protocol headers at various levels, as well as the data. If there's a preprocessor involved, then it can do some more specific checks against those protocols. Unless you can manage a match using one of those methods, it's probably a guessing game at best.
Specifically this would be used for SSH/SFTP/SCP.
You're not going to have much luck trying to match against encrypted protocols, unless you've cooked up a new way to pass Snort the session keys. Try using Tripwire, or some other host-based scheme if you need to detect these types of system changes reliably. ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ 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:
- Snort Detect Binary Transfer Real Cucumber (Jul 13)
- Re: Snort Detect Binary Transfer Keith W. McCammon (Jul 13)
- Re: Snort Detect Binary Transfer Real Cucumber (Jul 14)
- Re: Snort Detect Binary Transfer Keith W. McCammon (Jul 14)
- Re: Snort Detect Binary Transfer Bamm Visscher (Jul 14)
- Re: Snort Detect Binary Transfer Omar McKenzie (Jul 17)
- Re: Snort Detect Binary Transfer Real Cucumber (Jul 14)
- Re: Snort Detect Binary Transfer Matt Kettler (Jul 13)
- Re: Snort Detect Binary Transfer Bamm Visscher (Jul 13)
- Re: Snort Detect Binary Transfer Keith W. McCammon (Jul 13)