A legitimate site might make $1 per 1,000 views. A pirate site using malicious ads can make $20 per 1,000 views. That financial incentive is why the "Ogomovies ad" problem will never go away voluntarily.
Some hidden ad scripts run complex background computations using your device’s CPU resources to mine cryptocurrency (like Monero) for the site operators. This results in lagging system performance, overheating, and rapid battery drainage. How to Safely Block and Eradicate Ogomovies Ads ogomovies ad