A rootkit is a virus that uses specific techniques to infiltrate your computer’s operating system that make it nearly impossible to find. For example, a rootkit virus may exist as a file on your system, but it uses advanced techniques – more advanced than traditional malware – to hide itself in such a way that most anti-malware tools, and even the operating system itself, have no idea that it’s present.« Back to Glossary Index
Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.