It comes with pre-loaded Google frameworks, so you don't need to root your phone. Dual Accounts:
Technically, the exploit allowed a malicious app to write files into the storage space of a targeted legitimate app (like a banking app or a social media platform). Once the malicious code was written into the targeted app's private storage, the next time the user opened the legitimate app, it would execute the malicious code.
Below is an essay discussing its role, functionality, and impact on the mobile ecosystem.