[Snort-sigs] [Emerging-Sigs] MS RDP on non-standard port

Will Metcalf wmetcalf at ...3525...
Mon Jan 23 09:13:02 EST 2017


Thanks James!  We will get this added to QA.

Regards,

Will

On Sun, Jan 22, 2017 at 8:15 AM, James Lay <jlay at ...3266...> wrote:

> I see these scans semi regularly...usually the cookie is sometimes blank,
> sometimes not:
>
> alert tcp $EXTERNAL_NET any -> $HOME_NET !3389 (msg:"SCAN MS Terminal
> Server taffic on Non-standard Port"; flow:to_server,established;
> content:"|03 00 00|"; depth:3; content:"|e0 00 00 00 00 00|"; offset:5;
> depth:6; content:"Cookie|3a| mstshash="; pcre:"/Cookie\x3a mstshash=/";
> classtype:attempted-recon; sid:xxxxxxxx; rev:1;)
>
> James
>
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