Snort mailing list archives
Re: Create rule to check illegal web access
From: Josh Little <josh () zombietango com>
Date: Thu, 19 Jul 2012 13:15:23 -0400
On 7/19/2012 8:59 AM, Antonin wrote:
thanks for your answer. I have a proxy server but my goal is not to block this kind of traffic (it's already the case with the proxy). I just want to be alerted when a user (or a malware, etc...) try to reach this kind of website. We have a SIEM tool, and we want to have an alert.
Are you collecting your proxy logs into the SIEM tool? Couldn't your SIEM just alert you when a specific category of site is observed or acted upon? If you've already got the tools, why reinvent the wheel? Alerting based upon seeing a keyword in a HTTP packet will create a lot of noise. Reading an article on P2P legislation in the EU on Techdirt would probably trigger your initial rule example and in no way be a violation of your policy. Unless you are tracking the URL accessed or have some other method to verify each result, you may not even be able to efficiently weed out the FPs from the TPs. --ZT
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Current thread:
- Create rule to check illegal web access Antonin (Jul 19)
- Re: Create rule to check illegal web access Wei Chea Ang (Jul 19)
- Re: Create rule to check illegal web access Antonin (Jul 19)
- Re: Create rule to check illegal web access Wei Chea Ang (Jul 19)
- Re: Create rule to check illegal web access Josh Little (Jul 19)
- Re: Create rule to check illegal web access Antonin (Jul 19)
- Re: Create rule to check illegal web access Antonin (Jul 19)
- Re: Create rule to check illegal web access Wei Chea Ang (Jul 19)
- Re: Create rule to check illegal web access Kevin Ross (Jul 19)