ICANN opens up Pandora's Box of new TLDs

Tomas L. Byrnes tomb at byrneit.net
Sat Jun 28 03:13:51 UTC 2008

These issues are not separate and distinct, but rather related.

A graduated level of analysis of membership in any of the sets of:

1: Recently registered domain.

2: Short TTL

3: Appearance in DShield, Shadowserver, Cyber-TA and other sensor lists.

4: Invalid/Non-responsive RP info in Whois

Create a pretty good profile of someone you probably don't want to
accept traffic from.

Conflation is bad, recognizing that each metric has value, and some
correlation of membership in more than one set has even more value, as
indicating a likely criminal node, is good.


I guess, if you have perfect malware signatures, code with no errors,
and vigilance the Marines on the wire @ gitmo would envy, you can accept
traffic from everywhere.


> -----Original Message-----
> From: Christopher Morrow [mailto:morrowc.lists at gmail.com] 
> Sent: Friday, June 27, 2008 7:23 PM
> To: Roger Marquis
> Cc: nanog at nanog.org
> Subject: Re: ICANN opens up Pandora's Box of new TLDs
> On Fri, Jun 27, 2008 at 4:32 PM, Roger Marquis 
> <marquis at roble.com> wrote:
> > Phil Regnauld wrote:
> > apply even cursory tests for domain name validity. Phishers and 
> > spammers will have a field day with the inevitable namespace 
> > collisions. It is, however, unfortunately consistent with ICANN's 
> > inability to address other security issues such as fast flush DNS, 
> > domain tasting (botnets), and requiring valid domain contacts.
> >
> Please do not conflate:
> 1) Fast flux
> 2) Botnets
> 3) Domain tasting
> 4) valid contact info
> These are separate and distinct issues... I'd point out that 
> FastFlux is actually sort of how Akamai does it's job 
> (inconsistent dns responses), Double-Flux (at least the 
> traditional DF) isn't though certainly Akamai COULD do 
> something similar to Double-Flux (and arguably does with some 
> bits their services. The particular form 'Double-Flux' is 
> certainly troublesome, but arguably TOS/AUP info at 
> Registrars already deals with most of this because #4 in your 
> list would apply... That or use of the domain for clearly 
> illicit ends.
> Also, perhaps just not having Registrar's that solely deal in 
> criminal activities would make this harder to accomplish...
> Botnets clearly are bad... I'm not sure they are related to 
> ICANN in any real way though, so that seems like a red 
> herring in the discussion.
> Domain tasting has solutions on the table (thanks drc for 
> linkages) but was a side effect of some 
> customer-satisfaction/buyers-remorse
> loopholes placed in the regs... the fact that someone figured 
> out that computers could be used to take advantage of that 
> loophole on a massive scale isn't super surprising. In the 
> end though, it's getting fixed, perhaps slower than we'd all 
> prefer, but still.
> > I have to conclude that ICANN has failed, simply failed, 
> and should be 
> > returned to the US government.  Perhaps the DHL would at 
> least solicit 
> > for RFCs from the security community.
> I'm not sure a shipping company really is the best place to solicit...
> or did you mean DHS? and why on gods green earth would you 
> want them involved with this?
> -chris

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