On 5/1/12 3:19 PM, "valdis.kletni...@vt.edu<mailto:valdis.kletni...@vt.edu>" 
<valdis.kletni...@vt.edu<mailto:valdis.kletni...@vt.edu>> wrote:

On Tue, 01 May 2012 10:40:57 -0400, Rich Kulawiec said:

Why haven't you cut these obviously-infected systems off entirely?

There's quite likely multiple systems behind a NAT-ish router, and Comcast 
doesn't have any real option but to nuke *all* the systems behind the router.
This can be a tad troublesome if there's one infected box behind the router, 
but the customer is also using VoIP of some sort from another box - you may 
just have nuked their 911 capability. Or if they have multiple systems, you may 
have killed their ability to transact basic business like contact their local 
government or pay their utility bills from a box that's not infected.

All of this above! Plus, the remediation tools to clean up an infection are 
insufficient to the task right now. Better tools are needed. (See also 
http://tools.ietf.org/html/rfc6561#section-5.4)


Jason

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