Android/Monitor.SimplleKeyLogger is Malwarebytes’ detection name for the app Shadow – Kid’s Key Logger, a monitoring app targeting Android devices.
Android/Monitor.SimplleKeyLogger is categorized as stalkerware because it has these features:
It also allows the controller to modify or delete files, applications, and pictures; records time spent online, using apps, or on other activities.
Apps of this type can easily be abused and the access to infgormation it provides can lead to undesirable consequences.
The apps detected as Android/Monitor.SimplleKeyLogger can be uninstalled using the mobile devices uninstall functionality, but these apps can be made available under another name. That is where Malwarebytes for Android can help you, by identifying these apps and removing them.