[nsp-sec] ACK 700K Open Resolver List

Zoe O'Connell zoe at hotchilli.com
Tue Apr 14 05:35:45 EDT 2009


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ACK AS8419, 25399, 25587, 24976 - mostly CPE but quite a few other
hosts too I fear.

Stephen Gill wrote:
> ----------- nsp-security Confidential --------
>
> Hi Team,
>
> I took a somewhat restrictive view of the pcaps we have and parsed out
about
> 700K open resolvers used in the latest DNS amplifier attack across ~10K
> ASNs.  I believe there were closer to 1 Million total.
>
> You can find the data split up by ASN here:
>
> https://www.cymru.com/nsp-sec/Owned/recursive3/
>
> ASNs affected:
>
> https://www.cymru.com/nsp-sec/Owned/recursive3/asns.txt
>
> Please do not download the entire list and only fetch the ones you have
> control or influence over.
>
> Comments/questions welcome & have a great weekend!
>
> Cheers,
> -- steve
>

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