WorksheetsUnderstanding Trojans in Computer Security
Total questions: 22
Worksheet time: 11mins
According to Greek mythology, how did the Greeks win the Trojan War?
By building a giant wall around Troy
By using a giant wooden horse to hide soldiers inside Troy
By poisoning the water supply of Troy
By negotiating a peace treaty with the Trojans
What typically activates a Trojan on a victim’s computer?
Automatic system updates
User performing certain predefined actions
Hardware malfunction
Power outage
Which of the following best describes a Trojan in the context of computer security?
A program that is wrapped within or attached to a legitimate program, often with hidden functionality not apparent to the user.
A type of virus that replicates itself and spreads to other computers automatically.
A hardware device used to protect computers from malware.
A legitimate software update provided by the operating system vendor.
What is one way attackers can use a victim’s computer after it is infected with a Trojan?
To commit illegal DoS attacks using the victim’s computer as an intermediary.
To automatically update the victim’s antivirus software.
To increase the computer’s processing speed.
To repair corrupted files on the victim’s system.
Which of the following is NOT a typical sign of malware presence?
The mouse pointer disappears completely.
The keyboard and mouse freeze.
The system runs without any issues.
The Windows Start button disappears.
Which scenario best demonstrates strategic thinking in identifying malware threats?
Noticing unusual high CPU usage and correlating it with the presence of a background Trojan.
Recalling the definition of malware.
Listing types of malware.
Memorizing the symptoms of malware infection.
Why might pop-ups with bizarre messages suddenly appear on a computer?
The system is infected with malware.
The user installed a new browser extension.
The internet connection is slow.
The computer is running out of battery.
Which type of information is commonly targeted by attackers using Trojans, as shown in the diagram?
Weather updates
Sensitive personal and financial information
Free software licenses
Public news articles
What is a botnet, as described in the context of Trojan attacks?
A network of secure computers
A network of compromised computers under attacker control
A group of computers used for gaming
A set of computers used for data backup
Which port is associated with the Trojan 'Ptakks'?
8012
68
456
8787/54321
Which port is used by the Trojan 'iNi-Killer'?
9989
7777
421
555
Which Trojan commonly uses port 1177?
njRAT
Back Office DLL
Sub Seven
VooDoo Doll
What is the primary function of a RAT (Remote Access Trojan)?
To allow remote control of a victim's computer
To encrypt files for ransom
To scan for open ports
To block network traffic
A security analyst finds traffic on port 23456. Which Trojan could be responsible?
Evil FTP, Ugly FTP
Prosiak
Asylum
Delta
A system is found communicating on port 30100-02. Which Trojan might be present?
NetSphere 1.27a
Millennium
Rux
Progenic Trojan
A student wants to identify the Trojan associated with port 4590. Which Trojan should they look for?
ICQTrojan
Fore
Telecommando
Devil
Which of the following best describes the primary function of a Remote Access Trojan (RAT)?
Provides attackers with full control over the victim’s system remotely
Protects the victim’s system from malware
Encrypts files to prevent unauthorized access
Monitors network traffic for suspicious activity
What advanced tactic did the MacOSX.ps1 script use to disguise its malicious intent?
Disguising a PDF as a PNG for download
Encrypting all files on the system
Sending spam emails to contacts
Installing legitimate software updates
Which scripting language was used in the decoded image file to unveil another script in base64, as described in the document?
Python
PowerShell
JavaScript
Bash
What is a common method for detecting the presence of a Trojan on a system?
Running a full system scan with updated antivirus software.
Listening for unusual sounds from the computer.
Checking the system's battery level.
Monitoring the color of the desktop background.
Which of the following actions can help prevent Trojan infections?
Using weak passwords for accounts.
Disabling firewall settings.
Opening email attachments from unknown sources.
Regularly updating software and operating systems.
What is the primary goal of a Trojan horse in cybersecurity?
To provide free software updates.
To enhance system performance.
To protect against other malware.
To trick users into installing malicious software.
