Comcast and DGA like behavior

Paul Ferguson fergdawgster at mykolab.com
Wed Apr 25 15:40:19 UTC 2018


> On Apr 25, 2018, at 8:34 AM, Christopher Morrow <morrowc.lists at gmail.com> wrote:
> 
> On Wed, Apr 25, 2018 at 11:28 AM, J. Oquendo <joquendo at e-fensive.net> wrote:
>> Anyone else seeing DGA (1) like behavior for Comcast based
>> customers? If so, is there any information on it? Seeing a
>> lot of traffic to bogus domains all synonymous with their
>> networks.
>> 
> 
> don't they have a anti-botnet-automagic-walled-garden thing that's
> supposed to stop this?
> (also, example request RRs?)


If a residential broadband consumer’s computer gets pwned, there’s nothing really stopping a criminal from registering any sort of domain/hostname and pointing a DNS A record at it. In fact, that’s pretty routine. But the aspect that it could be a DGA is a bit more difficult insofar as planning and logistics, but not improbable, methinks.

- ferg

—
Paul Ferguson
ICEBRG.io
Seattle, Washington, USA



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