Fake mcpe able to connect to servers and subscription realm. Even able to create Xbox account.

I found a fake apk called 0.17.0. Upon further inspection it seemed to actually be a copy of 15.1 retextured and version number changed. I was able to join popular servers and lan games. With the app by itself I was not able to create a Xbox account or enter a subscription realm.
When using a mod called tool box I was able to launch the fake app with it and it recognised it as 15.1 right away. I was able to get an Xbox account because of this mod and join a realm which I own and invited the fake account.
I have not been able to join our most updated realm (15.4) because it recognises the app as outdated but not as fake. We own 4 legitimate copies of Minecraft for andriod, kindle, and win10 as well as two legitimate realms subscriptions.
I marked this as private because I felt it shouldn't be published publicly.