security – Screen Lock Service as a Device Administrator


I was looking at the device administrators of my phone in the settings and saw a device administrator called “screen lock service”. It’s description is “Activating this administrator will allow the app Google play services to perform the following operations: set password rules”.

A previously unsettled question is found here.

I searched the net for the apk file of the application but could not find one. So as per suggestions, I ran

adb shell dumpsys package resolvers | sed -n /,/:/p

The output for the above code was:
    438a74 com.motorola.demo/.admin.DemoModeAdminReceiver
    a9980b6 com.oasisfeng.greenify/.DeviceAdmin

The data for the code is quite unsettling for the fact that none seem to correspond to screen lock service.

For reference, I am using Moto G5 Plus (not rooted, stock build with no customizations)

Also note that, I own another same device which is rooted and runs Pixel-Experience (Android 10 latest build) and unfortunately it does not have the Screen Lock Service.

An insight/breakdown for this application is helpful.