A rootkit is a type of malware designed to gain privileged (root-level) access to a server while concealing its own existence. It embeds itself in the operating system and modifies core files to hide its processes, files, and network activity from administrators and security software.

This makes rootkits difficult to detect and remove. They can provide an attacker with a persistent backdoor to steal data, launch attacks, or monitor activity. Standard antivirus programs are often insufficient for detection, which typically requires specialized tools designed to find unauthorized system modifications and cloaking behavior.

The following resources offer insights into detecting and protecting against these advanced threats.