Remove ads in Viber for PC

I put also these two into my "c:\Windows\System32\Drivers\etc\hosts" file: (for mac the file location is: "/private/etc/hosts"), however, as others may suggest, later on new ad sites filtering might need.

127.0.0.1 rmp.rakuten.com
127.0.0.1 s-bid.rmp.rakuten.com
...

so I have these now: (Viber related)

127.0.0.1 ads.viber.com
127.0.0.1 ads.aws.viber.com
127.0.0.1 ads-d.viber.com
127.0.0.1 rmp.rakuten.com
127.0.0.1 s-bid.rmp.rakuten.com
127.0.0.1 ams1-mobile.adnxs.com
127.0.0.1 api.mixpanel.com
127.0.0.1 fra1-ib.adnxs.com
127.0.0.1 mediation.adnxs.com

127.0.0.1 images.taboola.com
127.0.0.1 api.taboola.com

Do the job.
First for kill image.
Second for kill load ads data from this ads network.
But if viber switch to other ads network, this solution stop work.
Or if it use another network for you.

I suggest install DNSQuerySniffer unload viber, run tool, run viber, and monitor your DNS queries.
If you see some suspicious DNS query - block it in hosts.

After my investigation, here are my hosts items:

127.0.0.1 ads.viber.com
127.0.0.1 ads.aws.viber.com
127.0.0.1 ads-d.viber.com
127.0.0.1 s-bid.rmp.rakuten.com
127.0.0.1 s-imp.rmp.rakuten.com
127.0.0.1 api.mixpanel.com