Re: Dynamic Preprocessor does not alert and capture packet

Russ <[email protected]>
Newsgroups gmane.comp.security.ids.snort.devel
Message-ID <[email protected]>

On 7/9/15 10:41 AM, Big Whale wrote:
> The preprocessor can be loaded but in ModSecProcess() function, the 
> preprocessor supposed to output the alert if the packet matched port 
> 80. But it does not works, so i thought the problem could be the 
> preprocessor rules. I already tried config 
> autogenerate_preprocessor_decoder_rules in snort.conf and define the 
> preprocessor alert generator id in the preprocessor_rules. Yet 
> everything does not seems to work like it supposed to. I am building 
> my preprocessor based on SSH preprocessor. Why don't you try compile 
> and run it locally so you can experience what kind of problem it is.
>
Why don't you grab the dpx tarball and step that code to see where you 
are going wrong?  That's what it's for.
>
> On Thursday, July 9, 2015 8:56 PM, Hui cao <[email protected]> wrote:
>
>
> Hi Big Whale,
>
> Can you describe in detail what works and what not? Which decoder 
> rule? Have you seen the rule get triggered in your preprocessor? 
> Again, SSH preprocessor has example how to generate a preprocessor alert.
>
> Best,
> Hui.
>
> On 07/09/2015 12:46 AM, Big Whale wrote:
> I already add "config autogenerate_preprocessor_decoder_rules" in my 
> snort.conf file and put the plugin's alerts in the preprocessor.rules 
> and gen-msg.map. But still no alert from my preprocessor. The 
> preprocessor loaded correctly.
>
>
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