PUP.Optional.Rapiddown is a threat detected by MalwareBytes Anti-Malware. The PUP.Optional.Rapiddown threat is classified as PUP a Potentially Unwanted Program by MalwareBytes Anti-Malware because it inflicts and acts as a malicious threat into your computer system. PUP.Optional.Rapiddown is not a virus but it does act like one. PUP.Optional.Rapiddown is adware which is bundled using custom installers and dropped on your computer during the installation process. Most users have no idea how this PUP.Optional.Rapiddown threat is installed on there computer and what it is, until MalwareBytes Anti-Malware detects it as a malicious threat or virus. Follow our instruction to remove this PUP.Optional.Rapiddown threat from your computer.