A rootkit is a set of utilities which can run hidden on a computer system, often with the intention of providing secret access to (and control over) the computer's operating system. Usually hackers, viruses, worms and other malicious entities use rootkits to hide their presence on infected systems.

Freeware software for detection and removal of rootkits by AVG. Runs on Windows.

Time-limited rootkit detection and removal program for Windows 2000, 2003 and XP.

Page with useful links and information on detecting and removing rootkits.

Identifies all processes which are 'hooked' into the operating system kernel ('kernel hooks'). Some of these hooks may be legitimate, some might be malicious.

Suitable for Windows XP, 2000 and 2003.