[dns-operations] Caching nameservers as malware distribution mechanism

[Paul Hoffman]

On 3/8/11 2:46 AM, Roberto Navarro - TusProfesionales.es wrote:
> It was disclosed past week at rootedcon (www.rootedcon.es):
>
> http://www.slideshare.net/rootedcon/francisco-jess-gmez-carlos-juan-diaz-cloud-malware-distribution-dns-will-be-your-friend-rootedcon-2011

Could you explain a bit about how the malware would be activated? That 
is, the slides just seem to show how you can get zipped malware into DNS 
caches. How would a user who is tricked into retrieving those records 
actually have the malware unzipped and executed? What processes would do 
that?