What do rootkits allow an intruder to perform on a computer?

Rootkits are specialized tools that enable an intruder to gain elevated privileges and remain undetected on a computer system. By using a rootkit, an attacker can manipulate system processes and files, allowing them to execute commands with higher authority than a standard user. This capability enables the intruder to conceal their actions from conventional detection methods, such as antivirus programs or system monitors.

Additionally, rootkits can modify the operating system’s functionality, allowing the threat actor to alter security settings, control applications, and monitor activities without raising alarm. The combination of gaining special privileges and maintaining stealth makes rootkits particularly dangerous, as they facilitate a persistent presence on the compromised system for extended periods. This strategic advantage is critical for various malicious activities, including data theft, surveillance, or even launching further attacks.

The other options do not accurately reflect the full range of capabilities a rootkit provides. While some may touch on certain aspects, they fail to encapsulate the core functionality and strategic purpose of rootkits in the context of computer security.