Re: Firing off Abuse email based on Snort Traffic

[Matt Howell <mhowell () cybarworks com>]

On Thu, 2003-05-29 at 12:07, Matt Kettler wrote:
> If you were to send me such an email without good evidence that an actual 
> attack was occurring, I'd request you immediately cease. If you failed to 
> cease, I'd blacklist all email from your domain on the third occurrence, 
> and issue a complaint to your upstream provider.

I understand your argument, and I am looking for a solution that will
work within the constraints that you mentioned.

Our portscan thresholds are pretty lax (you have to either scan more
than just a handful of ports or hosts to set it off), and I have several
more specific rules / preprocessors disabled (ie: the chatty Portscan2 /
conversation modules).  I recognize your concern for being "spammed"
with abuse, but I am working under the assumption that if such a project
exists, the developers would have taken this into consideration and
included some sort of record keeping functionality to prevent multiple
notifications within a reasonable time frame (2 days?).

> From our internal policy, if Snort reports that a host (or series of
hosts on the same subnet) have scanned 150 hosts on our network, then
this would definitely warrant an abuse email.  Right now, each one of
these is created by hand, based on a cookie cutter form anyway.  When
you consider that we receive portscans at all hours of the day, and an
administrator is not necessarily available to fire off an email right at
night, it would be nice to provide an ISP with a timely notification so
that they can address the issue while the host is still active (in
theory).

Are you aware of a project like this?

-Matt



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