[94960] in North American Network Operators' Group
Re: RBL for bots?
daemon@ATHENA.MIT.EDU (Joel Jaeggli)
Thu Feb 15 12:19:41 2007
Date: Thu, 15 Feb 2007 09:16:27 -0800
From: Joel Jaeggli <joelja@bogus.com>
To: Valdis.Kletnieks@vt.edu
Cc: Drew Weaver <drew.weaver@thenap.com>, nanog@merit.edu
In-Reply-To: <200702151634.l1FGY5TA022976@turing-police.cc.vt.edu>
Errors-To: owner-nanog@merit.edu
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...)
