Rootkits are a technology that is more and more often used by malware to hide themselves on system level, making themselves invisible to standard tools. RootAlyzer shows you anything that uses certain rootkit technologies, even if it is not in Spybot-S&Ds detection database. The RootAlyzer is a single tool which goes through the file system, the registry and process related lists. When you start RootAlyzer, it performs a very quick scan of a few important places, taking about a second on modern machines. To check the full system, you have the possibility of choosing a deep Scan.