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.
08-22-2019 08:11 AM
Hello,
The answer is it dpends, however for our company, they all do. Check the unified logs around the same time as the sinkhole and see what may have triggered it. Also do research on the domain with a 3rd party such as virtustotal.
Regards,
Click Accept as Solution to acknowledge that the answer to your question has been provided.
The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!
These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!
The LIVEcommunity thanks you for your participation!
