What is a rootkit?

A rootkit refers to a collection of tools and software designed specifically to provide unauthorized access to a computer or network while concealing its existence. It operates by subverting the normal operation of the operating system and manipulating it to hide its presence, making it difficult for users and security software to detect. Rootkits can be used by attackers to gain control over a system, allowing them to execute commands, steal data, or maintain persistent access without the owner's knowledge.

Understanding the nature of rootkits is crucial for cybersecurity, as they represent significant threats to systems' integrity. Unlike legitimate tools that serve maintenance or security functions, rootkits are primarily built with malicious intent, aimed at exploiting vulnerabilities. This distinction highlights the critical need for robust security measures and constant vigilance in monitoring systems for signs of rootkit activity, which can indicate a deeper compromise.