Just so you know This is worked for me. Downloaded avast, malwarebytea, airpush aware, anti adware and scanned the whole k3 android TV box.
I'm about at wit's end and ready to reset my phone. If you carefully check the add you can see the name of the App just left the the Add. In another example, the SamSam ransomware brought the City of Atlanta to its knees by taking down several essential city services—including revenue collection.
For the most part, I think Android security applications do more harm than good.