[Snort-users] Snort Rule Advise.

Matt Jonkman jonkman at ...14019...
Fri Apr 13 10:12:58 EDT 2007


You could do content:!"NADS";

Matt

Tony Purdy wrote:
> Hi,
> 
>  
> 
> Could someone kindly advise if it is possible to achieve the following
> within a rule.
> 
>  
> 
> I am creating rules to trigger when specific words are seen within the
> payload, for example the word 'ADS' as below:
> 
> *alert tcp any any -> any any (msg :"SecureADS"; sid:1000011;
> content:"ADS"; nocase; rev:1;)*
> 
> But currently it will trigger if it sees NADS for example which is a
> menu option within an SGD environment.
> 
>  
> 
> Please advise how I can restrict the rule to trigger when only ADS is
> seen, this can appear anywhere in the payload.
> 
>  
> 
> Kind Regards
> 
>  
> 
> Tony
> 
>  
> 
>  
> 
> **Tony Purdy**
> 
> **__________________________**
> 
> **Axial Systems Ltd.**
> 
> **Tectonic Place**
> 
> **Holyport Road**
> 
> **Maidenhead SL6 2YE**
> 
> ( **01628 418 000**
> 6  01628 418 221
> * **tpurdy at ...14103... <BLOCKED::mailto:tpurdy at ...14103...>**
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> 
>  
> 
>  
> 
> 
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-- 
--------------------------------------------
Matthew Jonkman
Bleeding Edge Threats
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765-807-3060 fax
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