Snort mailing list archives
Re: Sanity Check for password change - unsuccessful attempt
From: Joel Esler <jesler () sourcefire com>
Date: Wed, 22 May 2013 17:26:35 -0400
On May 22, 2013, at 4:45 PM, "Khawaja, Kaleem" <Kaleem.Khawaja () bp com> wrote:
All, My first attempt at writing this rule and will appreciate the keen eyes of the experts here. If you can do a quick sanity check for me and let me know if the syntax and the logic will work. Basically trying to alert on unsuccessful attempts for changing passwords in AD. alert tcp any 88 -> any any (msg:"Password Change attempt - 20130522"; flow:to_client,established; content:"|05|"; offset:14; depth:1; content:"|1e|"; distance:4; within:1; content:"|18|"; distance:30; within:1; content:"changepw"; distance:30; within:8; nocase; detection_filter:track by_src, count 4, seconds 120; classtype:attempted-user; sid:10000061; rev:1; )
In order to look at something like this, you'd/we'd need a pcap to analyze. -- Joel Esler Senior Research Engineer, VRT OpenSource Community Manager Sourcefire
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Current thread:
- Sanity Check for password change - unsuccessful attempt Khawaja, Kaleem (May 22)
- Re: Sanity Check for password change - unsuccessful attempt Joel Esler (May 22)
- Re: Sanity Check for password change - unsuccessful attempt rmkml (May 22)