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Re: DNS Amplification attack?
From: Kameron Gasso <kgasso-lists () visp net>
Date: Tue, 20 Jan 2009 18:16:45 -0800

Wil Schultz wrote:
Anyone else noticing "." requests coming in to your DNS servers?

http://isc.sans.org/diary.html?storyid=5713

I'm seeing them coming from the following addresses in my ns server logs.

69.50.142.110
69.50.142.11
76.9.16.171
66.230.128.15
66.230.160.1

We're also seeing a great number of these, but the idiots spoofing the
queries are hitting several non-recursive nameservers we host - and only
generating 59-byte "REFUSED" replies.

Looks like they probably just grabbed a bunch of DNS hosts out of WHOIS
and hoped that they were recursive resolvers.

-- 
Kameron Gasso | Senior Systems Administrator | visp.net
Direct: 541-955-6903 | Fax: 541-471-0821


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