Happiness Clean Joke Trackware Backdoor - Version 1.3.79 Happiness Clean Joke Trackware Backdoor prevents the installation of rootkits, removes aggressive spyware, intercepts all API calls and blocks reinstallation of aggressive spyware. Happiness Clean Joke Trackware Backdoor provides detailed information on files that are deemed suspicious. Suspicious programs may be new spyware, mutations of known spyware or legitimate programs behaving contrary to their purpose or missing vendor tags.