Several malicious apps pretending to be device boosters, battery managers and device cleaners have been found on Google Play. These seemingly innocent apps contain malware and work in one of two ways. They either function as they are expected or they display an error message claiming that that the app is incompatible with your device and it has been removed. In both cases, these apps contain very sophisticated banking trojans. They create phishing forms tailored to apps found on your phone. These forms appear to be legitimate login pages but are actually collecting your account information for the hackers. These nasty apps also covertly intercept and redirect text messages, bypass SMS based two factor authentication, intercept calls and download and install other malicious apps.
The good news is, if you think you have one of these apps on your phone you can easily uninstall it using the Application Manager in the Settings app. This is a good time to remind you to only download from reputable sites and to pick apps that have high numbers of downloads as well as many good reviews.