Which type of software hides its presence on a computer while enabling an attacker to gain near-total control?

Which type of software hides its presence on a computer while enabling an attacker to gain near-total control?

• A. Adware
• B. Keylogger
• C. Rootkits
• D. Worms

Answer: (C)

Rootkits are designed to hide their presence on a computer while enabling an attacker to gain near-total control. They achieve this by subverting the operating system at a low level—often by hooking or replacing kernel or system libraries, altering process and file listings, and masking network activity—so security tools and the user don’t see them. Once stealth is established, the attacker can issue commands, install backdoors, steal data, and maintain access across reboots. This combination of concealment and remote control is what makes rootkits uniquely capable of staying hidden while granting near-total control. Adware simply displays ads, a keylogger focuses on capturing input and may not hide itself or provide broad control, and worms emphasize spreading to other machines rather than staying hidden and giving extensive control.

Rootkits are designed to hide their presence on a computer while enabling an attacker to gain near-total control. They achieve this by subverting the operating system at a low level—often by hooking or replacing kernel or system libraries, altering process and file listings, and masking network activity—so security tools and the user don’t see them. Once stealth is established, the attacker can issue commands, install backdoors, steal data, and maintain access across reboots. This combination of concealment and remote control is what makes rootkits uniquely capable of staying hidden while granting near-total control. Adware simply displays ads, a keylogger focuses on capturing input and may not hide itself or provide broad control, and worms emphasize spreading to other machines rather than staying hidden and giving extensive control.