1.2.1 - Firewalls and Malware

A user downloads a seemingly legitimate software application. Upon running it, the software appears to work fine, but secretly it installs malicious code that opens unauthorized access to the user’s system. What type of malware is this?

• Virus

• Worm

• Backdoor

• Trojan Horse

This type of malware replicates itself and spreads to other computers on the same network without any user interaction. It can cause widespread damage and slow down network performance. What is it?

• Virus

• Worm

• Backdoor

• Spyware

Malicious software that allows an attacker to bypass normal authentication and gain remote access to the computer is known as what?

• Virus

• Backdoor

• Spyware

• Trojan Horse

A user notices their computer is running slower, and they are seeing unwanted advertisements. The user's browsing behavior is also being tracked without their consent. What type of malware is likely installed?

• Virus

• Worm

• Spyware

• Trojan Horse

A malicious program that requires user action, such as opening an infected email attachment, to spread to other files or programs on the same computer is called what?

• Virus

• Worm

• Backdoor

• Spyware

An attacker leaves a program on a system that allows them to re-enter at a later time without needing to log in again. What is this type of malware called?

• Trojan Horse

• Virus

• Backdoor

• Worm

A user receives a file from a trusted friend. However, the file contains malicious code that corrupts the user’s data after execution, though the file appeared harmless initially. What type of malware is this?

• Trojan Horse

• Spyware

• Worm

• Virus

A self-replicating piece of code that attaches itself to executable programs and files, often spreading when the infected program is run, is known as what?

• Worm

• Virus

• Backdoor

• Spyware

A piece of malicious software that operates in the background, collecting information about a user's online activities and sending it back to a remote attacker is called what?

• Trojan Horse

• Spyware

• Virus

• Backdoor

After opening an infected email, a program begins to spread itself across the network, replicating without the need for any further user interaction. What type of malware is this?

• Virus

• Worm

• Spyware

• Trojan Horse