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Re: Issue while detecting patterns in a simple HTTP Page [Web client based]
From: waldo kitty <wkitty42 () windstream net>
Date: Sun, 21 Nov 2010 20:13:57 -0500

On 11/21/2010 13:59, Sujit Ghosal wrote:
Hey Guys,
     I have installed Snort v2.8.x in FC-13//Ubuntu v10.10 and everything got
installed/configured (installed through Redhat Package Manager//Synaptic Package
Manager) successfully. But while writing a rule to detect a simple pattern
inside HTML body, snort is failing to do so! If I check for the HTTP MIME
headers only i.e. "Content-Type:", "Via:" etc. then snort detects those patterns
flawlessly. Even I wrote a simple rule to detect GET requests over $HTTP_PORTS
and its working fine.

can you post the rule that you have that is not working??

But while it comes to check for the contents inside the HTML body (client side
web pages) entity then snort is not even detecting a single <html> tag. I guess,
its an issue with any preprocessors, but I have no idea that which preprocessor
could be creating such issues.

we might need to see your snort.conf file, too... but let's look at your rule 
first ;)

I am fully stuck in that place and not able to figure out that how I should fix
this silly problem.

Please help. Any help would be more appreciated.

we will do what we can :)

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