books.google.co.in - A rootkit is a type of malicious software that gives the hacker "root" or administrator access to your network. They are activated before your system's operating system has completely booted up, making them extremely difficult to detect. Rootkits allow hackers to install hidden files, processes, and...http://books.google.co.in/books/about/Rootkits_For_Dummies.html?id=MTcep7V6heUC&utm_source=gb-gplus-shareRootkits For Dummies