Is this a real virus

U.S. Federal Trade Commission – How To Spot, Avoid, and Report Tech Support Scams

"Tech support scammers may try to trick you with a pop-up window that appears on your computer screen. It might look like an error message from your operating system or antivirus software, and it might use logos from trusted companies or websites. The message in the window warns you about a security issue on your computer and tells you to call a phone number to get help.

If you get this kind of pop-up window on your computer, don’t call the number. Real security warnings and messages will never ask you to call a phone number."

It's a scam. A message warning of malware will only be legitimate if it's in response to manually starting a scanner or uploading a file to a website.

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No, it is not real. It is a scam attempt presented by criminals. Do not interact with the message or the sender.