Understanding Worms in Cybersecurity
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Questions and Answers

What is malware?

  • An operating system feature for enhancing security
  • Any element of software that performs an unwanted function from the user's perspective (correct)
  • Software that performs beneficial functions for the user
  • A type of computer hardware component

What differentiates viruses from other malicious code?

  • They are always harmless and do not cause any damage
  • Viruses are designed to protect systems from cyber threats
  • Viruses can only corrupt data but not delete or alter it
  • Viruses self-replicate and spread from one system to another (correct)

Which type of malware is characterized by self-replication and spreading among systems?

  • Ransomware
  • Trojan
  • Keylogger
  • Worm (correct)

What is the primary function of a logic bomb in the context of malware?

<p>To self-destruct when triggered by a specific event (A)</p> Signup and view all the answers

Which category of malware is known for monitoring and recording keystrokes made by users?

<p>Spyware (B)</p> Signup and view all the answers

What distinguishes RATs (Remote Access Trojans) among other types of malware?

<p>RATs allow unauthorized access and control over infected systems (A)</p> Signup and view all the answers

What are common symptoms of a crypto-malware infection?

<p>Inability to access data, missing data, system not booting (A)</p> Signup and view all the answers

What is the primary objective of ransomware?

<p>To encrypt user data and demand payment for decryption (D)</p> Signup and view all the answers

Why is it advised against paying the ransom in a ransomware attack?

<p>Paying encourages attackers to continue their criminal activities (B)</p> Signup and view all the answers

What makes worms different from viruses?

<p>Worms are self-contained and don’t require a host file to infect (C)</p> Signup and view all the answers

Which form of malware holds a user’s data hostage in exchange for a ransom payment?

<p>Ransomware (D)</p> Signup and view all the answers

What type of currency are ransom payments often requested in by ransomware attackers?

<p>Bitcoins (B)</p> Signup and view all the answers

What is the main way in which a victim is tricked into accepting a Trojan on their system?

<p>By believing the Trojan to be a benign host (D)</p> Signup and view all the answers

Which of the following are common payloads released by Trojans?

<p>Distributed Denial-of-Service (DDoS) tools (C)</p> Signup and view all the answers

How does a rootkit differ from traditional malware?

<p>A rootkit shims itself under the OS kernel (D)</p> Signup and view all the answers

What type of actions can a Trojan horse perform once it infects a system?

<p>Install remote control backdoors (A)</p> Signup and view all the answers

What symptoms can be observed when a system is infected through a Trojan horse delivery of malware?

<p>System slowdown or unresponsiveness (B)</p> Signup and view all the answers

How do countermeasures for Trojan horses compare to countermeasures for viruses?

<p>Countermeasures for both involve similar approaches (A)</p> Signup and view all the answers

What is the primary focus of worms?

<p>Replication and distribution (C)</p> Signup and view all the answers

How do worms typically spread to other systems?

<p>Exploiting a specific vulnerability (A)</p> Signup and view all the answers

What is the main goal of a Trojan horse?

<p>Tricking users into installing it (D)</p> Signup and view all the answers

What is a common disguise used by Trojan horses?

<p>Games and screensavers (D)</p> Signup and view all the answers

What are some symptoms of a worm infection?

<p>System crashes and abnormal network activity (D)</p> Signup and view all the answers

How is a Trojan horse crafted?

<p>By integrating technology abuse with social engineering (B)</p> Signup and view all the answers

What is a common indicator of adware compromise?

<p>Pop-up display of advertisements even when a web browser is not running (D)</p> Signup and view all the answers

What can spyware collect from a user's system?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following is true about spyware depositing methods?

<p>Can be deposited by viruses, worms, or Trojan horses (C)</p> Signup and view all the answers

What is a common method used by advertising companies to gather information?

<p>Gathering information without user knowledge (C)</p> Signup and view all the answers

How can adware compromise impact system performance?

<p>Cause slow system response and poor mouse responsiveness (A)</p> Signup and view all the answers

What should be added to antimalware software to counter spyware effectively?

<p>Specific adware-scanning tools (D)</p> Signup and view all the answers

Flashcards

Malware Definition

Software designed to cause unwanted behavior from the user's perspective.

Virus

Self-replicating malicious code that spreads from one system to another.

Worm

Self-replicating malware that spreads independently, not needing a host file.

Logic Bomb

Malware that activates on a specific event or trigger.

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Spyware

Malware that monitors and records user activity, like keystrokes.

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RAT (Remote Access Trojan)

Malware allowing unauthorized access and control of a system.

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Crypto-malware Symptoms

Inability to access data, missing data, system boot issues.

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Ransomware

Malware encrypting data and demanding payment for decryption.

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Ransom Payment

Often requested in cryptocurrency, like Bitcoins.

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Trojan Horse

Disguised malware requiring user interaction to be installed.

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Trojan Horse Payload Examples

Can include DDoS tools for example.

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Rootkit

Malware that hides itself deep within an operating system, often shimming the kernel.

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Trojan Horse System Actions

Can install remote control backdoors.

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Trojan Horse Symptoms

Can cause system slowdown or unresponsiveness.

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Trojan Horse Countermeasures

Similar approaches for viruses, focus on prevention and detection.

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Worm Goals

Replication and distribution are the primary targets.

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Worm Spread

Often exploits vulnerabilities in software or systems.

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Trojan Horse Goal

Tricking users into installing it.

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Trojan Horse Disguise

Commonly disguised as games or screensavers.

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Worm Infection Symptoms

System crashes and abnormal network activity.

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Trojan Horse Creation

Combines technology abuse and social engineering.

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Adware Compromise Indicator

Constant pop-up ads on screen, even when no browser is active.

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Spyware Data Collection

Gathers information about a user's activity.

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Spyware Deposit Methods

Can be brought in by viruses, worms, or Trojans.

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Adware Impact

Can cause slow system response and poor mouse responsiveness.

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Anti-malware Addition for Spyware

Needs specific tools beyond standard antimalware to detect and remove adware effectively.

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