Stripes appear on the screen when opening/closing tabs after restarting the system. Finder generally became yellow highlighted. What to do?

Question

Malware

I turned on the Mac (mojave 10.14.6), turned on wildly for a long time, about 20
minutes. After turning it on, purple and white stripes began to appear on the screen. Finder turned yellow sometimes. What to do? How to fix? Hardly a virus, since yesterday this was not until the system was turned off.

Answer 1

All mac drivers know that the first thing to do is reset (NVRAM, SMC)
https://en.ifixit.com/Guide/How+to+reset+the+SMC+P...