Hello and thanks for your question. I look forward to assisting you today with the best answer possible.
Which browser are you using?
for eg: chrome etc.
I mean to say in your Samsung note 3 which browser are you using?
Please uninstall the infected browsers and then again reinstall from play store.
To uninstall > go to Settings > APPS > then select the browser > then uninstall.
Then again open Play Store > then search for those browser and then install.
Tell me how it goes!
Did uninstalling and reinstalling chrome solved the chrome's problem?
As of first step we will uninstall any malicious app from your phone.
Please go to the Application Manager > This will bring up a list of installed apps, including the malicious app for eg: BaDoinkIf you cannot find the malicious app, I would recommend you to uninstall all the recently installed apps.
Please let me know after doing this step.
I will tell you further steps to eliminate this virus completely from your phone.
Please download Avast Free Mobile Security from google playstore.Click on the “Install” button, and when the app permissions will be displayed click on “Accept” install Avast Free Mobile Security on your Android phone.Then follow the onscreen instructions to scan and remove any threats from your phone.