Any Open Source platform faces same deal: Being used as a malware. o ensure it’s sticking its name to something good, Google is partnering up with several manufacturers, sellers and developers to inform customers of worthy products using a time-tested method: a seal of approval.
Google Play Protect — Google’s comprehensive security services for Android, providing powerful new protections and greater visibility into your device security. Play Protect is built into every device with Google Play, is always updating, and automatically takes action to keep your data and device safe, so you don’t have to lift a finger.
Check out the list: https://www.android.com/intl/en_in/certified/partners/