Android users may soon have a reason to rejoice, as it appears Google may actually be working on a built-in malware scanner for its Google Play store. The Android Police, an Android enthusiast blog, has done a full APK teardown of the Google Play store update, which the blog notes has just been updated to 3.9.16.

The update includes a string file with source code for something called "App Check." It will essentially enable Google to not only inspect the applications that a user has already downloaded from the Play store, but also warn users if they’re downloading something that looks potentially malicious, with the option to install the app regardless of the warning. There is also artwork included in the string that shows the potential notification icons that could crop up if malware is detected.

The Android Police says that this is a lot like Bouncer, a server-side scanner that Google unveiled in February, which checks each app submitted to the store for traces of known malware. However, this particular feature looks like it will be a "virus scanner" that will be a part of the Android operating system.