Experts from Cheetah Mobile firm revealed that the Hummer Android malware has already infected millions of smartphones worldwide. The researchers noticed a significant increase in the number of infections in 2016, with a daily average of 1.4 million affected devices. Most of the infections were observed in India, Indonesia, Turkey, China, Mexico, the Philippines, Russia, Malaysia, Thailand and Vietnam. The malicious code includes rooting exploits that use in the attempt to gain administrator privileges on the mobile device and makes hard its removal even with a factory reset.”]
Source: https://securityaffairs.co/wordpress/48901/mobile-2/hummer-android-malware.html