Malware: Symptoms and Impact
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Questions and Answers

What is the main characteristic of adware?

  • It throws up unwanted advertisements on the screen, often within a web browser (correct)
  • It secretly observes the computer user's activities without permission
  • It attaches to another program and replicates itself
  • It gains unauthorized access to the affected computer

    • How does spyware function?

  • It gains unauthorized access to the affected computer
  • It throws up unwanted advertisements on the screen, often within a web browser
  • It attaches to another program and replicates itself
  • It secretly observes the computer user's activities without permission (correct)

    • What distinguishes a virus from a worm?

  • Viruses are self-replicating, worms attach to another program and replicate themselves
  • Viruses observe the computer user's activities, worms slow down the computer
  • Viruses gain unauthorized access to the affected computer, worms throw up unwanted advertisements
  • Viruses attach to another program and replicate themselves, worms are self-replicating (correct)

    • What characterizes a Trojan horse?

    <p>It represents itself as something useful to trick users and gain unauthorized access</p> Signup and view all the answers

    What is the primary effect of malware on a system?

    <p>Reduction in operating system speed</p> Signup and view all the answers

    Study Notes

    Adware

    • Adware primarily focuses on delivering advertisements to users, often through pop-ups or banners.
    • It may track user behavior to customize ads, usually provided for free in exchange for ad exposure.
    • While often less harmful than other malware types, it can compromise privacy and system performance.

    Spyware

    • Spyware functions by secretly monitoring user activities and collecting personal information.
    • It can log keystrokes, track browsing habits, and gather sensitive data such as passwords and credit card information.
    • Often installed without user consent, it can lead to identity theft and severe privacy breaches.

    Virus vs. Worm

    • A virus attaches itself to a host program or file, activating when the host is executed, and can spread when the infected file is shared.
    • A worm is a standalone malicious program that replicates itself to spread across networks without needing a host.
    • While both can cause damage, worms exploit vulnerabilities to propagate rapidly, while viruses rely on user interaction.

    Trojan Horse

    • A Trojan horse masquerades as a legitimate application or file to deceive users into downloading or executing it.
    • Unlike viruses and worms, Trojans do not self-replicate but can create backdoors for additional malware installation.
    • They can lead to unauthorized access, data theft, and substantial system damage.

    Malware Effects on a System

    • The primary impact of malware on a system includes disruption of normal operations, potentially leading to system crashes or instability.
    • Malware can also result in data loss, unauthorized access to personal information, and financial theft.
    • Infected systems often experience degraded performance, increased vulnerability to other attacks, and privacy violations.

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    Description

    Test your knowledge on the symptoms and impact of malware, a type of malicious software that can harm computer systems. Learn about common signs of malware infection and its effects on system performance.

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