Snort mailing list archives

Re: What do the commented-out rules mean?


From: Matt Olney <molney () sourcefire com>
Date: Tue, 1 Dec 2009 20:41:07 -0500

Joel is right.

We turn rules off for several reasons:

Preprocessors render them irrelevant
Performance impact too high in relation to the threat
False positives too high in relation to the threat
The rule covers an obsolete vuln, and should only be used by people trapped by old tech.

Hope that helps,

Matt

Sent from my iPhone

On Dec 1, 2009, at 8:29 PM, Joel Esler <jesler () sourcefire com> wrote:

On Tue, Dec 1, 2009 at 7:15 PM, 林闻捷 <wendyfermilin () gmail com> wrote:
Hi, all

I analyze the web-activex rules in both 2.7 and 2.8 version. There are lots of rules commented out (more than half). So do many other files. What do commented-out rules mean? Are they bad rules, or as a backup for special usage? Thank you very much!


It means they are off by default. You can choose to turn them on, if they apply to your environment.




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Joel Esler | 302-223-5974 | Gtalk: jesler () sourcefire com
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