Re: IDS Rules to detect The Blacknurse Attack - ICMP DOS

[Joshua Williams <joshuwi2 () sourcefire com>]

Lenny,

Thanks for your submission. I'll review and test these rules and get back
to you when they are finished.

--
Josh Williams
Detection Response Team
TALOS Security Group

On Sat, Nov 12, 2016 at 1:07 AM, Lenny Hansson <lenny () netcowboy dk> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Hi all users
>
> 2 public released IDS rules to detect The Blacknurse Attack - Feel free to use.
> REF: blacknurse.dk
>
> alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"TDC-SOC – Possible BlackNurse attack from external source"; 
> itype:3; icode:3; detection_filter:track by_dst, count 250, seconds 1; 
> reference:url,soc.tdc.dk/blacknurse/blacknurse.pdf; metadata:TDC-SOC-CERT,18032016; priority:3; sid:88000012; rev:1;)
>
> alert icmp $HOME_NET any -> $EXTERNAL_NET any (msg:"TDC-SOC – Possible BlackNurse attack from internal source"; 
> itype:3; icode:3; detection_filter:track by_dst, count 250, seconds 1; 
> reference:url,soc.tdc.dk/blacknurse/blacknurse.pdf; metadata:TDC-SOC-CERT,18032016; priority:3; sid:88000013; rev:1;)
>
> Venlig hilsen / Best Regards
> Lenny Hansson
>
> E-mail: security () netcowboy dk
> Key-ID: D282 E960 7B91 5A04 68DA AB33 4070 9EB8 9137 9877
>
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>
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