Podcast
Questions and Answers
Software inserted in a system for malicious purpose is considered a virus.
Software inserted in a system for malicious purpose is considered a virus.
False
A worm is a program that replicates itself and sends copies over network connections.
A worm is a program that replicates itself and sends copies over network connections.
True
A denial of service attack prevents legitimate users from accessing a service.
A denial of service attack prevents legitimate users from accessing a service.
True
A backdoor allows unintended access for attackers into a program.
A backdoor allows unintended access for attackers into a program.
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A trojan horse only propagates by itself without requiring any manual action.
A trojan horse only propagates by itself without requiring any manual action.
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A logic bomb is activated based on certain triggers and can harm files or systems.
A logic bomb is activated based on certain triggers and can harm files or systems.
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An email virus spreads using attachments that contain a macro virus.
An email virus spreads using attachments that contain a macro virus.
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A macro virus infects only specific operating systems and cannot affect hardware.
A macro virus infects only specific operating systems and cannot affect hardware.
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The execution phase of malware is when it performs its intended malicious function.
The execution phase of malware is when it performs its intended malicious function.
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Study Notes
Malicious Software
- Software inserted into a system for unsafe purposes is called malicious software.
- A virus infects other programs by modifying them.
- A worm replicates itself and sends copies over a network.
- Denial-of-service attacks prevent legitimate users from accessing a service.
- A backdoor or trapdoor is a secret entry point into a program.
- A logic bomb's activation depends on conditions like the presence or absence of files.
- A logic bomb can modify or delete files, halt the machine, and more.
- A Trojan horse hides malicious code and propagates viruses or worms.
- A zombie computer takes over another computer in a network to carry out attacks indirectly.
- The dormant phase is when a program waits for triggering events.
- A propagation phase creates copies of a program in other programs.
- The triggering phase causes the code to perform its intended function.
- An execution phase causes changes to programs and data.
- Macro viruses infect documents on various systems.
- Email viruses spread via email attachments containing malicious code.
- Worms spread through network connections.
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Description
Test your knowledge on various types of malicious software, including viruses, worms, and Trojan horses. This quiz explores how these programs operate and their impacts on computer systems. Learn about concepts like denial-of-service attacks and logic bombs.
