Re: BAD-TRAFFIC dns cache poisoning attempt sid:13667

[waldo kitty <wkitty42 () windstream net>]

On 11/8/2012 23:31, yew chuan Ong wrote:
> Hi All,
>
> I found this rule under so_rules.

yeah, i wish they'd use other category filenames for GID 3 rules instead of 
using the same ones GID 1 uses... perhaps they should prefix those category 
filenames and MSG texts with SO_ to make it more obvious? there are times that 
GID:3 just gets lost in sight...

> I also found a thread discussing GID:3... http://seclists.org/snort/2010/q1/190
> Since we have no idea how the sig works (in term of detection method), how can
> we analyze it?

simply put, you cannot... you need the source code and that is not available to 
the general public, AFAIK...

> Appreciate if anyone can response. Thanks!
>
>
> Regards
> Yew Chuan
> --------------------------------------------------------------------------------
> *From:* yew chuan Ong
> *To:* "snort-sigs () lists sourceforge net"
> *Sent:* Thursday, November 8, 2012 3:33 PM
> *Subject:* [Snort-sigs] BAD-TRAFFIC dns cache poisoning attempt sid:13667
>
> Hi,
>
> I found the description of this sig here -
> http://cs.uccs.edu/~cs591/ids/snort/snort2_9_0/so_rules/bad-traffic.rules.
>
> But, when I downloaded the rules from Snort, I found nothing related inside
> bad-traffic.rules. Any ideas?
>
> This sig is still enabled by default right?
>
> Thanks!


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