Excuse me, what is this gray full-screen information that pops up?

I have encountered this kind of advertisement, and found the root of the problem after inspection.

In fact, this is a fraud software that sells stocks and receives funds. This kind of fraud software will be installed in your mobile phone when you are not paying attention, imitating the form of flash message to forcibly pop up fraud advertising information on your mobile phone, occupying the whole screen and forcing you to watch it, which is very malicious and disturbing the people.

The solution is to find the software in the background, delete and uninstall.

I found a similar software called ggtg in my mobile phone. After I deleted it, I found another software called ggbh, which has never appeared since I uninstalled it again.

This malware will change the display name of the program to hide itself. You just need to find programs that don't need to be uninstalled.

If you have any questions, ask me.

The control of the mobile phone is in your hands, and malicious programs will be cleaned up no matter how powerful they are, and there will be no more problems.