Virus causes pop-up messages and turns installation from unknown sources on, how can I get rid of it?

A

AC Question

Virus causes pop-up messages and turns installation from unknown sources on

Hello Android users,
some days ago my Android 5.1 phone started opening internet browser by itself randomly with Facebook winning sites and similar junk. I closed it every time and searched for some removal tool in the store. None of tools found nor removed something, but one warned me every time that "allow installation fro unknown sources" is ´turned on. So it happens every time when virus activates pop-up screens. today i restored the phone on the factory settings and set up my profile from scratch. a minute later the same issue happened again.

Any idea how to get rid of this?
 

Forum statistics

Threads
943,164
Messages
6,917,604
Members
3,158,856
Latest member
tivativa