Re: Rule thoughts

[James Lay <jlay () slave-tothe-box net>]

On 2012-09-06 13:14, Joel Esler wrote:
> Think in the reverse order.
>
> content:"mailto:<"; content:!">"; distance:0; within:1500;
>
> Although you if you have a mailto that is longer than say... 100,
> that's probably bad.
>
> On Sep 6, 2012, at 3:08 PM, James Lay <jlay () slave-tothe-box net> 
> wrote:
>
> > Hey all,
> >
> > So...been keeping my eye on:
> >
> > http://seclists.org/bugtraq/2012/Sep/29
> >
> > and was interested in this portion to have Snort look at:
> >
> >   @font-face
> >   {
> >     font-family: "MyFont";
> >     src: url(mailto:xxx<... approximately 2,020 characters removed
> > ...>xxx);
> >   }
> >
> > My thought was to do something like:
> >
> > content: "mailto:<"; content: ">"; within: 1500;
> >
> > or would offset be more appropriate?  Any pointers would 
> > help...thank
> > you.
> >
> > James

Thanks for fixing my thinking Joel :)  Guess maybe a more generic rule 
would work as well..."Unusually long mailto detected" or something.  
I'll see what I can come up with.

James


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