L' INTELLIGENCE CYBER par Jean-Paul Pinte

For malware writers, Google Play is the promised land of sorts. Once there, a malicious application gains access to a wide audience, gains the trust of that audience and experiences a degree of leniency from the security systems built into operating systems. On mobile devices, users typically cannot install applications coming from sources other than the official store, meaning this is a serious barrier for an app with malicious intent. However, it is far from easy for the app to get into Google Play: one of the main conditions for it is to pass a rigorous check for unwanted behavior by different analysis systems, both automatic and manual.

https://securelist.com/blog/research/75894/how-trojans-manipulate-google-play/