Re: MS RDP on non-standard port

[Joshua Williams <joshuwi2 () sourcefire com>]

James,

Thanks for your submission. I'll review and test this and get back to you
when it has finished.

--
Josh Williams
Detection Response Team
TALOS Security Group

On Sun, Jan 22, 2017 at 9:15 AM, James Lay <jlay () slave-tothe-box net> 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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