I think I have a bug

[SUSU65]

Hey - ( mac mini core i7 ) In a state of lack of sleep, while surfing on the web,
a pop up came along saying download a new version of flash.
Turns out it was a disguise version of Clean My Mac ...
now I get pop up windows asking if I want cloud back up - etc.

How can I check or scan for a virus and or when can I go to locate these bugs or malware
and clean them out ?

Thanks.

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[CoastalOR]

Give Malwarebytes Anti-Malware for Mac a try to see what it finds on your system.