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DNS Sinkhole - What constitutes investigation?

mbleckert
L0 Member

‎08-09-2019 04:54 PM - edited ‎08-09-2019 04:55 PM

I have implemented DNS sinkholing and am curious what constitutes investigation. I am seeing some clients hitting the sinkhole but only for a short period (1-2 minutes or less).

 

I'm not sure if these could be drive-by download attempts, or what they are. I would expect an infected machine to keep trying but these machines have the short lived sinkhole traffic then, even after several days, do not reappear.

 

Excuse the ignorance. Any opinions would be appreciated. Thanks so much.

 

This is my first post on here so hopefully I'm in the correct discussion group. I'm still learning my way around.

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