Snort mailing list archives
Re: local codered infection
From: Ryan Russell <ryan () securityfocus com>
Date: Wed, 6 Feb 2002 11:49:19 -0700 (MST)
On Wed, 6 Feb 2002 bthaler () webstream net wrote:
Is anyone using a snort rule to detect *local* infections of codered, nimda, etc? I tried: alert tcp x.x.x.x any -> any 80 (msg:"***LOCAL CODERED INFECTION***"; content:"/cmd.exe"; nocase;)
CodeRed.b is the only active one out there at the moment. It doesn't contain the string "cmd.exe". That was Codered II (CodeRed.c and CodeRed.d).
but this doesn't seem to work. I tested it by trying to access www.yahoo.com/cmd.exe, which should throw a false positive.
From that IP address, obviously, yes?
Is my testing flawed, or the rule, or both?
Where did you put the rule, and did you restart Snort? Ryan _______________________________________________ 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:
- local codered infection bthaler (Feb 06)
- Re: local codered infection Ryan Russell (Feb 06)
- Re: local codered infection bthaler (Feb 06)
- Re: local codered infection Phil Wood (Feb 06)
- Re: local codered infection Ryan Russell (Feb 06)
- Re: local codered infection bthaler (Feb 06)
- Re: local codered infection Ryan Russell (Feb 06)
- <Possible follow-ups>
- RE: local codered infection Chip Kelly (Feb 06)