Android/PUP.Riskware.FakeMalwarebytes is Malwarebytes’ generic detection name for potentially unwanted programs that are offered to Android users as if they were Malwarebytes for Android.
Apps detected as Android/PUP.Riskware.FakeMalwarebytes come in many variants and are often offered as “improved versions” of Malwarebytes for Android.
The creators of these variants steal the actual app, uncompile it, change and potentially compromise the code, then recompile with a different digital certificate.
Users of Android/PUP.Riskware.FakeMalwarebytes may feel that their device is clean and protected while this is not true.
Malwarebytes for Android protects against Android/PUP.Riskware.FakeMalwarebytes.
These apps can be uninstalled using the mobile devices uninstall functionality, but these apps are typically made available under a falsename. That is where Malwarebytes for Android can help you, by identifying these apps and removing them.