Re: RBL for bots?

[Joel Jaeggli <joelja () bogus com>]

Valdis.Kletnieks () vt edu wrote:
> On Thu, 15 Feb 2007 11:30:34 EST, Drew Weaver said:
>
> >     Has anyone created an RBL, much like (possibly) the BOGON list which
> > includes the IP addresses of hosts which seem to be "infected" and are
> > attempting to brute-force SSH/HTTP, etc?
>
> > It would be fairly easy to setup a dozen or more honeypots and examine
> > the logs in order to create an initial list.
>
> A large percentage of those bots are in DHCP'ed cable/dsl blocks.  As such,
> there's 2 questions:
>
> 1) How important is it that you not false-positive an IP that's listed because
> some *previous* owner of the address was pwned?
>
> 2) How important is it that you even accept connections from *anywhere* in
> that DHCP block?

That depends...

Do you sell "Internet service"  to you customers or something else. If
the former then they're actually paying to receive connections from
anywhere...

> (Note that there *are* fairly good RBL's of DHCP/dsl/cable blocks out there.
> So it really *is* a question of why those aren't suitable for use in your
> application...)