How can I get rid of a pop up or adware ?

[Android Central Question]

I have an annoying pop up that comes up after every call or missed call. I have checked my apps and none look suspicious. I have security and malware protection and neither detect this as a problem. How can I get rid of this annoying thing? I have a screenshot of the popup that wants to control my contacts, wants to install other apps like uber and amazon. It started a few days ago but I havent installed anything new lately.

 

[belodion]

Nevertheless, try Safe Mode.