Clean a virus

iOS is not susceptible to viruses. If you experience strange pop-ups or strange messages, for example in Safari. Then delete your browser history and website data.

Go to: Settings → Safari → tap “Clear History and Website Data”

If you experience other "suspicious" things on your iPhone, please let us know. iOS cannot get viruses. Every app you have on your iPhone can only work in its own closed area. This means that NO 3rd party apps have access to important and vulnerable files or areas in iOS. Just like they don't have access to each other either (3rd party apps to 3rd party apps)

Agree with others, there is not a virus. I assume the problem is happening in Safari and in addition to the previous recommendation to clear caches, check the pop-up button and Extensions in Settings > Safari.

As there are no virus capable of infecting an iPhone, you don't.

What are the symptoms of this "virus"?