Clean Master itself is installed on android. What's the matter?

Question

Android

Hello. Every time I log into my android device, I see the Clean Master application in the "recently installed" application. I rarely download anything from unfamiliar sites, memory will not allow it. I searched all the folders and found nothing. I'm not going to reset to factory settings.
How can I fix the problem?

Answer 1

Delete what this application installs. Enable adb and look at the logs.
It's easier to reset to factory settings, but if you don't look for easy ways, then just analyze the logs.