A breakdown of how pervasive the CopyCat malware campaign is

Check Point researchers identified a mobile malware that infected 14 million Android devices, rooting approximately 8 million of them, and earning the hackers behind the campaign approximately $1.5 million in fake ad revenues in two months.

https://blog.checkpoint.com/2017/07/06/how-the-copycat-malware-infected-android-devices-around-the-world/