Unit 3 - 2.4.3 -Trojans, Backdoors, and RATs

What is a Trojan horse in the context of cybersecurity?

• A type of computer virus that spreads rapidly through networks.

• Malicious software disguised as harmless or legitimate software.

• A security tool used to protect against malware attacks.

• A software program designed to enhance computer performance.

What is the significance of the term "Trojan Horse" in cybersecurity?

• It refers to a fictional character in Greek mythology.

• It symbolizes deceptive tactics used by hackers to gain unauthorized access.

• It represents a type of encryption algorithm used in malware.

• It signifies a type of computer hardware vulnerability.

How do Trojan horses typically enter a victim's computer?

• Through direct hacking into the system's firewall.

• By exploiting vulnerabilities in the operating system.

• Via email attachments or free downloads.

• Through automatic software updates.

What distinguishes a Trojan horse from a computer virus?

• A Trojan horse can self-replicate without user assistance.

• A Trojan horse is designed to encrypt files on a computer.

• A Trojan horse requires user assistance to propagate.

• Trojan horses are always detected by antivirus software.

What is a backdoor in the context of cybersecurity?

• A type of malware that steals sensitive information.

• A means to access a system or data bypassing normal security controls.

• A computer program that replicates itself and spreads to other computers.

• A hardware device used to block unauthorized network traffic.

What is a Remote Access Trojan (RAT)?

• A type of virus that spreads via infected email attachments.

• A software program designed to enhance remote network performance.

• A Trojan horse with a backdoor allowing for remote control of the infected host.

• A security tool used to scan for vulnerabilities in a network.

What is the purpose of a Downloader Trojan?

• To perform distributed denial-of-service (DDoS) attacks on networks.

• To intercept and send SMS messages from mobile devices.

• To remotely control an infected computer's webcam.

• To download and install additional malware onto an already infected computer.

How does a Distributed Denial of Service (DDoS) Trojan function?

• By encrypting the victim's files and demanding a ransom.

• By intercepting and sending SMS messages from infected devices.

• By flooding a network with traffic from infected computers to overwhelm and disrupt its normal functioning.

• By remotely controlling the infected computer's microphone.

What is a recommended defense against Trojan horse attacks?

• Download and run unknown software to test its functionality.

• Disable antivirus software to avoid conflicts with legitimate programs.

• Regularly update antivirus and security software, and avoid downloading or running unknown or untrusted software.

• Share sensitive information via email attachments to trusted contacts.

What can a hacker do once a Remote Access Trojan (RAT) is installed on a victim's computer?

• Control the computer remotely and perform various actions such as viewing files and taking screenshots.

• . Install antivirus software to protect the computer from future attacks.

• Encrypt the computer's files and demand a ransom for decryption.

• Redirect the computer's internet traffic to malicious websites.