Does this ad pop up when you're browsing the web on your mobile device or computer?
This is an extremely widespread form of malware. It's been around on desktop computers and Apple iOS mobile phones and tablets for years. Earlier this year, it made the jump to Android devices as well.
Ad blockers can't block this kind of advertising. The only way to prevent the pop-ups is to remove the malware that's creating them. On your computer, it may be hiding in a browser extension. On your mobile device, the malware is often disguised as an innocent-looking app.
In general, you should:
- Force-close your web browser. Don't just click the "x" in the pop-up. That often leads to even more ads.
- Clear your browser history and website data.
- Delete any browser extensions or apps you installed shortly before the ads started to appear.
And above all, NEVER CLICK A LINK OR BUTTON in any pop-up ad!