Safari pops up mac keeper page automatically.
I am not sure if this is normal/ my mac is infected by virus but when i surf an internet on safari, the new safari window pops up at the background and is says "Please consider cleaning you mac from junk". i've attached the picture of it. Not sure how does it comes every time i surf the on safari..
Can anyone please help me on this whats the problem?
Mac Pro, macOS Sierra (10.12.5)