Which statement defines a Rootkit?

Which statement defines a Rootkit?

• A. A program that copies itself repeatedly
• B. A program that hides in a computer and allows someone from a remote location to take full control of the computer
• C. A Blu-ray Disc
• D. A Firewall

Answer: (B)

Rootkits are designed to blend into the system, stay hidden, and give an unauthorized user ongoing control. The statement describes a program that hides in a computer and allows someone from a remote location to take full control, which matches what a rootkit does: covert access and persistent backdoor control without being easily detected. This kind of malware often operates at a low level in the operating system to conceal its presence while letting an attacker issue commands, spy, or extract data. The other options refer to something entirely different—a self-copying program points to viruses or worms that spread; a Blu-ray Disc is just physical media; a Firewall is security software. So the description of hiding and providing remote control best defines a rootkit.

Rootkits are designed to blend into the system, stay hidden, and give an unauthorized user ongoing control. The statement describes a program that hides in a computer and allows someone from a remote location to take full control, which matches what a rootkit does: covert access and persistent backdoor control without being easily detected. This kind of malware often operates at a low level in the operating system to conceal its presence while letting an attacker issue commands, spy, or extract data. The other options refer to something entirely different—a self-copying program points to viruses or worms that spread; a Blu-ray Disc is just physical media; a Firewall is security software. So the description of hiding and providing remote control best defines a rootkit.