PUP.MPlayerX is Malwarebytes’ detection name for a bundler targeting Mac systems.
When PUP.MPlayerX is installed it comes bundled with adware and other potentially unwanted programs (PUPs).
PUP.MPlayerX is usually installed by users themselves as an alternative Media Player for macOS.
Malwarebytes Malwarebytes for Mac detects any version of MPlayerX as PUP.MPlayerX.
Malwarebytes for Mac can detect and remove PUP.MPlayerX without further user interaction.