Check Point Researchers recently discovered a new variant of mobile malware that quietly infected around 25 million devices, while the user remains completely unaware. Disguised as Google related app, the core part of malware exploits various known Android vulnerabilities and automatically replaces installed apps on the device with malicious versions without the user’s interaction.

https://research.checkpoint.com/2019/agent-smith-a-new-species-of-mobile-malware/