An Android app called Brain Test has been downloaded between 200,000 and 1 million times. The malware was hidden inside bogus versions of popular games such as Plants vs Zombies 2 and Temple Run 2 Zoombie It was used to evade detection by Googles Bouncer, which is supposed to stop malicious apps from entering the store. Google eventually pulled the trojans from the Google Play store but only after they had resided their undetected for a year and a half.”]
Source: https://grahamcluley.com/video-malware-hits-google-play-android-app-store/