WorksheetsUnderstanding Malware: A Quiz for Students
Total questions: 19
Worksheet time: 10mins
A computer virus is best described as (a)
What is the main difference between a worm and a virus?
Worms require user action to spread, viruses do not
Viruses can self-replicate, worms cannot
Worms can self-replicate and spread without user action, viruses usually need user action
Worms only infect mobile devices
Match each type of malware with its correct description.
Spyware
Malware that secretly monitors user activity and collects information without consent.
Trojan
Malware disguised as legitimate software to trick users into installing it.
Ransomware
Malware that demands payment to restore access to files or systems.
Rootkit
Malware designed to gain unauthorized root or administrative access to a system.
What is a common impact of ransomware on an organisation?
Slows down the computer’s performance
Encrypts important files and demands payment for decryption
Steals passwords and sends them to hackers
Installs unwanted toolbars in the browser
(a) best describes a Trojan.
Which of these is NOT a characteristic of a Trojan?
Disguises itself as legitimate software
Requires user to install or run it
Self-replicates across networks automatically
Can create backdoors for attackers
What is the primary purpose of spyware?
To encrypt files and demand a ransom
To monitor user activity and collect information without consent
To delete system files
To provide free software updates
Which of the following is a key feature of rootkits?
They are always visible to antivirus software
They hide their presence and the presence of other malware
They only infect mobile phones
They are used to speed up computers
How does a rootkit typically gain access to a computer system?
By tricking users into clicking on adverts
By exploiting vulnerabilities to gain administrator or root privileges
By sending spam emails
By slowing down the internet connection
Which of the following is NOT a type of malware?
Worm
Firewall
Trojan
Rootkit
What is the main goal of ransomware?
To steal personal information
To demand money in exchange for restoring access to data
To display unwanted adverts
To speed up the computer
(a) is the type of malware most likely to be used for spying on a user’s activities.
A Trojan can be used to:
Encrypt files and demand a ransom
Open a backdoor for attackers to access the system
Self-replicate across a network
Hide itself in the operating system kernel
What makes rootkits particularly dangerous?
They are easy to detect and remove
They can hide themselves and other malware from security software
They only affect old computers
They slow down the internet connection
Which of the following is a sign that a computer might be infected with spyware?
Files are encrypted and a ransom note appears
The computer frequently crashes and restarts
Unusual pop-ups and slow performance
The screen turns completely blue
What is the main method by which worms spread?
Through infected USB drives only
By sending themselves to contacts via email or network connections
By hiding in legitimate software downloads
By requiring the user to manually copy them
Which of the following is true about Trojans?
They always require a network to spread
They disguise themselves as useful or harmless software
They are always detected by antivirus software
They only affect mobile phones
What is a common impact of a rootkit on a computer system?
It makes the system run faster
It allows attackers to control the system without being detected
It deletes all user files
It displays adverts on the desktop
Which of the following best describes the relationship between spyware and privacy?
Spyware protects user privacy by encrypting data
Spyware invades user privacy by collecting information without consent
Spyware has no effect on user privacy
Spyware is only used for legal monitoring
