I dont know how could this happen.The phone started popping ads randomly everywhere.I ran malwarebytes and found a RockClient.apk installed on my phone in the system level.There was another Dropper agent installed uninstalled it.But this was in systems so i disabled this for now.
I am curious how could this have occurred,did it replace my rom signature.Or is there a very genius guy behind it.Also is there a way to remove this without rooting the phone?(probably there isn't one).But still i am curious to see.Did this happen to anyone else?