Activision has unveiled new malware that masquerades as a "trainer" to install secret miners on PCs. Hackers marketed their malware as a "undetected cheat for COD WARZONE" and even posted some YouTube videos demonstrating it. Among other items, the dropper built many secret cryptocurrency miners on the systems of its victims. Since CoD: Warzone is a challenging game in terms of device specifications, the hackers' "target audience" was most likely chosen on purpose.