DNS Amplification attack?

Christopher Morrow morrowc.lists at gmail.com
Tue Jan 20 20:21:43 CST 2009


On Tue, Jan 20, 2009 at 9:16 PM, Kameron Gasso <kgasso-lists at visp.net> wrote:

> 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.

a point to bear in mind here is that... 'its working' is good enough
for the bad folks :( no need to optimize when this works. Also, it's
likely this isn't all of the problem the spoofed requestors are seeing
these past few days :(

-Chris




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