My phone installing apps automatically

[vjmon]

Hello

I buyed new phone ( Selectline Auchan S4S5IN3G Android 5.1 )
first weeks work fine but now install apps by itself without permission
every time i disable Unknown Source it's re-enabled automatcly
i tried factory reset but immediately i open wifi my phone re-install this apps automaticly
App Tools
GStore
AdService
bedrock
com.google.toolkit
com.systems.app.filys

and there build-in app i think is malware
named is ( com.android.provision )

what should i do?

 

[B. Diddy]

Welcome to Android Central! Try doing another factory reset, and this time, set it up like a new phone (i.e., don't select any option to restore from a backup). Does the same thing happen? If so, then there's either malware installed to the system root, or the phone actually came with this junk preinstalled. Either way, it'll be hard to get rid of it unless you can reinstall a fresh copy of the firmware (and this assumes that the phone didn't actually come with this junk preinstalled). Since that phone is not common, I doubt you'll be able to find a copy of the firmware on the web, nor a way to root the phone (which is usually necessary to reinstall firmware). Good luck!