https://techcrunch.com/2023/07/31/call-of-duty-worm-malware-used-to-hack-players-exploits-years-old-bug/

For around a month, hackers have been infecting players of Call of Duty: Modern Warfare 2 with a self-spreading malware, also known as a worm. To do that, the hackers are exploiting a bug that was reported to the game’s publisher five years ago, TechCrunch has learned.

Someone on Twitter posted a screenshot showing the code behind the self-spreading malware. Maurice Heumann, a security researcher who for years has been finding and reporting bugs in several Call of Duty games, told TechCrunch that the screenshot shows the malware is using a bug and a technique to exploit the game that he himself discovered and reported in 2018 to Activision, the gaming giant that publishes the Call of Duty series.