How to remove PUM.dns permanently?

[Chandra Shetty]

Can someone please tell me how to remove PUM.dns virus permanently?

The DNS ip addresses on my router are getting changed frequently.  I keep changing it back to my ISP DNS ip addresses.
Dlink router model: DSL-2520U_Z2

I have windows 8.1 defender and Malwarebytes anti malware.  Both of them report no threats.
I have RogueKiller also. It keeps finding PUM.dns with unwanted ip addresses.  I keep deleting them.
I do this daily 5 times. I tried resetting browsers (IE and Chrome), changing passwords on routers, and many things as suggested on various forums. No luck!

[Curson]

Hi Chandra,

Welcome to Adlice.com Forum.

Entries flagged as PUM (Potentially Unwanted Modification) could be potentially malicious.
In your case all of them are perfectly legit.

For more information, please read RogueKiller Documentation. You will find extensive descriptions about such entries there.

Regards.