What is an Info-stealing ad library?
In google play store more than 800 apps that contain malicious ad library. This information-stealing ad library dubbed Xavier can collect sensitive user information such as Device ID, E-mail ID, SIM card operator, Installed apps and OS version, all without the users knowledge.
The malicious ad library is a type of Trojan horse.
Presently, Google has removed all the malicious apps and it is continuously monitoring all apps.