To report a botnet PRIVATELY please email: [EMAIL PROTECTED]
----------
Jeff Kell wrote:

>To report a botnet PRIVATELY please email: [EMAIL PROTECTED]
>----------
>Thomas Raef wrote:
>  
>
>>To report a botnet PRIVATELY please email: [EMAIL PROTECTED]
>>----------
>>I've been using a linux box with iptables and l7-filter to detect
>>botnets on local networks.
>>
>>It's done quite a fine job of detecting the traffic rather than just
>>identifying it by destination port.
>>
>>Anyone else trying this?
>>    
>>
>
>Yes, with snort.  But you have to constantly tune your rules to maximize your 
>valid hits and minimize the FPs.  By the time you have a really good signature 
>(that you would trust to block via snortsam/snort-inline/etc) for a bot, it 
>usually only works for that specific variant.
>
>The more difficult and time-consuming part is using more generic signatures to 
>flag 'suspicious' IRC traffic and manually scouring the results trying to 
>separate out the bycatch and/or fine-tune a sig to catch the positives.
>  
>
That's always been a problem....  finding good and effective Snort 
rules.  Although Snort has a good
collection of rules, we need a more refined list of rules for detecting 
the bots.  Does anyone know of
a good set of snort rules for detecting them?

John

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