Re: [Snort-users] Snort Rule Advise.

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@axial.co.uk <BLOCKED::mailto:tpurdy@axial.co.uk>**
> /www.axial.co.uk <BLOCKED::blocked::http://www.axial.co.uk/>/
>
>  
>
>  
>
>
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--------------------------------------------
Matthew Jonkman
Bleeding Edge Threats
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