Merry Rootkit Unwanted Toolbars Zombie Killer - Version 1.4.34 Merry Rootkit Unwanted Toolbars Zombie Killer is an antispyware, antimalware, antispam software that quickly and securely removes spyware and other Internet infections, including spyware, adware, malware, home-page hijackers, remote administration tools, dialers, and keyloggers.