Re: Negate Content - Snort Rules

["Joel Esler \(jesler\) via Snort-sigs" <snort-sigs () lists snort org>]

What is the error you’re receiving?

— 
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> On Jun 11, 2021, at 10:57, João Pedro Lola via Snort-sigs <snort-sigs () lists snort org> wrote:
>
> Hello All,
>
> In a snort rule, why can´t i have two negate contents and third not negate content? If i can, how do I write it to 
> work?
>
> Example:
>
> alert tcp $HOME_NET $HTTP_PORTS -> $EXTERNA_NET $HTTP_PORTS (
> msg:"a message...";
>  flow:stateless; 
> content:!"|76 69 64 65 6f 2f 6d 70 65 67|"; offset:13; depth:10;
> content:!"|61 75 64 69 6f 2f 6d 70 65 67|"; distance:1; within:10; 
> content:"|61 75 64 69 6f 2f 6d 70 65 67|"; distance:1; within:10; 
> classtype:tcp-connection; sid:3024678; rev:1;)
>
> Best Regards,
> João Lola
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