F-Secure is also the first vendor to ship rootkit detection technology into a consumer product offering, giving the company an early entry into a potentially lucrative market.

A rootkit is described as a malicious program that uses system hooks to conceal its presence on the system.

For instance, it monitors if the user opens the Windows Task Manager in order to keep itself out of the list of processes.

Security researchers have discovered evidence of malware writers using stealth rootkit features to hide spyware and other malicious programs on Windows machines.  "Learn more"