Manipulate App Store Rankings or Ratings
An adversary could use access to a compromised device's credentials to attempt to manipulate app store rankings or ratings by triggering application downloads or posting fake reviews of applications. This technique likely requires privileged access (a rooted or jailbroken device).
BrainTest provided capabilities that allowed developers to use compromised devices to post positive reviews on their own malicious applications as well as download other malicious applications they had submitted to the Play Store.
This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.
- Chris Dehghanpoor. (2016, January 6). Brain Test re-emerges: 13 apps found in Google Play Read more: Brain Test re-emerges: 13 apps found in Google Play. Retrieved December 21, 2016.
- A. Guertin, V. Kotov, Android Security & Privacy Team. (2020, January 9). PHA Family Highlights: Bread (and Friends) . Retrieved April 27, 2020.