nanog mailing list archives

RE: random dns queries with random sources


From: "Beeman, Davis" <Davis.Beeman () integratelecom com>
Date: Wed, 19 Feb 2014 17:08:03 +0000

They are, and dropping them just as fast.  It seems like the last a day or two, and then move on to another domain 
name.  They are similar enough that the bots probably work off a formula to determine valid requests.

It may be a coincidence, if you believe in those, but this type of C&C traffic started ramping up wildly about a month 
after the ZeroAccess servers got blocked...  

Davis Beeman | Network Security Engineer | 360.816.3052
Integra 


-----Original Message-----
From: Joe Maimon [mailto:jmaimon () ttec com] 
Sent: Wednesday, February 19, 2014 08:59
To: Beeman, Davis; North American Networking and Offtopic Gripes List
Subject: Re: random dns queries with random sources



Beeman, Davis wrote:

rather the authoritative name server in these domains is the rouge DNS server in use by the bad actor running a 
botnet.

Davis Beeman
Network Security Engineer



Somebody must be registering these domain names.

And I should be able to compile a list of the auth servers in question.

Joe


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