Types of Malware Quiz

Study Notes

Types of Malware

1. Viruses

Definition: Malicious code that attaches itself to legitimate programs or files.
Behavior: Requires user action to spread (e.g., running infected programs).
Impact: Can corrupt or delete files, disrupt system operations, and propagate to other systems.
Examples: Boot sector viruses, macro viruses, and file-infecting viruses.

2. Worms

Definition: Standalone malware that replicates and spreads across networks without user action.
Behavior: Exploits vulnerabilities in operating systems or software to self-replicate.
Impact: Can consume bandwidth, clog networks, and install backdoors for other malware.
Examples: Mydoom, Conficker, and ILOVEYOU.

3. Trojans

Definition: Malicious software disguised as legitimate software.
Behavior: Users are tricked into downloading and executing the malware.
Impact: Provides backdoor access to the attacker, leading to data theft or other malicious activities.
Examples: Zeus Trojan, Emotet, and Remote Access Trojans (RATs).

4. Spyware

Definition: Software that secretly monitors user activities and collects information.
Behavior: Runs in the background, often without user knowledge.
Impact: Can collect sensitive data like login credentials, browsing habits, and financial information.
Examples: Keyloggers, adware, and browser hijackers.

5. Ransomware

Definition: Malware that encrypts files and demands ransom for decryption.
Behavior: Typically spreads through phishing emails or malicious links.
Impact: Can lead to data loss and financial damage, as victims often pay to regain access to their files.
Examples: WannaCry, CryptoLocker, and Petya.

Malware Types

Viruses are malicious code that attaches to legitimate files. They require user action to spread, often by running infected programs. Viruses can cause data loss and system disruption.
Worms are standalone malware that replicates and spreads across networks without user interaction. Worms leverage vulnerabilities in software or operating systems to self-replicate. They can choke up networks and install backdoors for other malware.
Trojans are disguised as legitimate software, often tricking users into downloading and executing them. They can grant attackers backdoor access, leading to data theft or other malicious activity.
Spyware secretly monitors user activities, collecting information like login credentials and browsing history. It runs in the background without user knowledge.
Ransomware encrypts files and demands payment for decryption. Ransomware is often spread through phishing emails or malicious links. It can cause data loss and financial damage, as victims might pay to regain access to their files.

Description

Test your knowledge on different types of malware, including viruses, worms, and trojans. Learn how they behave, their impacts, and some notable examples. This quiz covers the essential aspects of each malware type and their significance in cybersecurity.