Re: letdown, dos attempt not detecting

[Jeremy Hoel <jthoel () gmail com>]

What do you have snort's output set too?
Have you checked the mysql tables directly?
Does barnyard give any errors (and is it running?)?

On Tue, Dec 11, 2012 at 5:40 PM, Leonardo Pezente <lmpezente () gmail com> wrote:
> its really works, thanks. here is the rule:
>
> alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"DOS syn attempt";
> flags:S; flow:to_server; classtype:attempted-dos; detection_filter: track
> by_src, count 1000, seconds 40; sid:1000024;)
>
> the only think is: i cant see the msg on BASE GUI, and this is a really
> interesting thing.
>
> 2012/12/11 Russ Combs <rcombs () sourcefire com>
> > On Tue, Dec 11, 2012 at 11:45 AM, Leonardo Pezente <lmpezente () gmail com>
> > wrote:
> > > im testing snort attacking it with a tool called "letdown".it is a tcp
> > > floder. The think is: im not able to detect what could be a potencial dos
> > > attack.
> > > Letdown generate like 65000 syn packets, so this should be detect fot
> > > snort. I have uncomment the dos and ddos rules, but no deal. so im tring to
> > > create a rule to detct this kind of traffic. Is that possible? any idea how
> > > i can do that?
> >
> >
> > Check out Snort's README.filters.  There are rate_filter examples for
> > 135:1 that you can start with.
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