Chapter 3 (fundamentals of Security)

What type of malware encrypts a user's files and demands a ransom to restore access?

• Worm

• Keylogger

• Ransomware

• Spyware

Which of the following best describes cryptomalware?

• A type of malware that displays pop-up ads on the screen.
• A type of malware that encrypts files and demands a ransom for decryption.
• A type of malware that slows down computer performance.
• A type of malware that deletes files without encryption.

A __________ virus attaches itself to executable files and spreads when the infected file is executed.

How does a fileless virus typically operate?

• A fileless virus operates by infecting physical files on the hard drive.
• A fileless virus operates by residing in the computer's memory rather than on the hard drive.
• A fileless virus operates by displaying pop-up messages on the screen.
• A fileless virus operates by encrypting all files on the computer.

__________ are self-replicating malware that spread independently over networks without the need for a host file.

Which type of malware is often used to form botnets?

• Bots

• Worm
• Ransomware
• Spyware

Which of the following is a common characteristic of spyware?

• Encrypts user files

• Records user activity and gathers information without consent

• Replicates itself and spreads across networks

• Deletes files on specific dates

A Remote Access Trojan (RAT) provides an attacker with __________ over an infected computer.

What is the purpose of a logic bomb?

• To record keystrokes

• To create a backdoor

• To execute malicious actions when certain conditions are met

• To spread through network vulnerabilities

What is the difference between a worm and a virus (Select 2).

• Worms are autonomous.

• Viruses require a host file to attach to.

• Worms need user actions to spread.

• Viruses spread through network by exploiting vulnerabilities without needing user interaction.