Podcast
Questions and Answers
Computer Systems and its contents can be attacked in many ways.
Computer Systems and its contents can be attacked in many ways.
True
Malware is a type of software designed to harm computer systems.
Malware is a type of software designed to harm computer systems.
True
Which of the following are types of malicious software?
Which of the following are types of malicious software?
How does a virus typically infect a computer?
How does a virus typically infect a computer?
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What is the main way that a worm spreads?
What is the main way that a worm spreads?
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Describe how a Trojan horse enters a computer system.
Describe how a Trojan horse enters a computer system.
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What is spyware designed to do?
What is spyware designed to do?
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How does phishing work?
How does phishing work?
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A Denial of Service (DoS) attack is a method of overwhelming a computer with messages to prevent normal operation.
A Denial of Service (DoS) attack is a method of overwhelming a computer with messages to prevent normal operation.
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Spam is a type of malware that is designed to harm computers.
Spam is a type of malware that is designed to harm computers.
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Study Notes
Network Security Attacks
- Computer systems and their contents can be attacked in various ways.
- Many attacks involve malicious software (malware).
Types of Malware
- Viruses
- Worms
- Trojan Horses
- Spyware
Virus
- A virus infects a computer by inserting itself into existing programs.
- When the host program is executed the virus also executes.
- Viruses can cause damage by degrading operating system functions, deleting data, corrupting programs, and erasing large data storage blocks.
Worm
- A worm is an autonomous program that travels over a network.
- Worms copy themselves and spread to other computers.
Trojan Horse
- A Trojan horse is a program that disguises itself as a desirable program (e.g., a game).
- Victims willingly download and run Trojan horses.
- Trojans can start immediately or wait for an event to trigger them.
- Trojans often spread via email attachments.
Spyware
- Spyware is software that monitors computer activities.
- It collects information about computer usage and sends the information back to the attacker.
- Spyware can be used by companies to gather information about customers for marketing purposes.
- Spyware is often used to steal passwords and credit card data.
Phishing
- Phishing involves tricking victims into providing information.
- Phishing attacks usually use emails from legitimate-looking organizations (e.g., Government, banks).
Denial of Service (DoS) Attacks
- DoS attacks overwhelm a computer with messages.
- Attackers often use a botnet (network of infected computers) to carry out these attacks.
Spam
- Spam is unwanted junk email.
- Spam can be used to spread malicious software like phishing emails and Trojan horses.
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Description
This quiz covers various types of network security attacks, focusing on malicious software (malware). It offers insights into viruses, worms, Trojan horses, and spyware, detailing how each type functions and spreads. Test your knowledge on how these threats can compromise computer systems.
