Questions and Answers
What is the main difference between adware and spyware?
Adware is financially supported by organizations whose products are advertised, while spyware is designed to steal sensitive information.
What is the difference between a virus and a worm?
Viruses can replicate themselves and spread over a network without human intervention, while worms are malicious code written to harm a host computer.
What is a botnet?
A network of infected computers controlled by a central controller, with infected computers known as zombies.
Study Notes
- Malware is malicious software designed to access or install into a computer without user consent.
- Malware can perform unwanted tasks for a third party and seriously degrade computer performance.
- Adware is malware used for forced advertising, financially supported by organizations whose products are advertised.
- Spyware is malware designed to steal sensitive information from a target machine, often downloaded with freeware.
- Browser hijacking software is malicious software downloaded with free software that modifies browser settings and redirects links.
- Viruses are malicious code written to harm a host computer by deleting or appending files, occupying memory space, slowing down performance, etc.
- Worms are a class of virus that can replicate themselves and spread over a network without human intervention.
- Trojan horse is a malicious code installed by pretending to be useful software, damaging data and creating backdoors for remote control.
- Botnets are networks of infected computers controlled by a central controller, with infected computers known as zombies.
- Malware can be spread via email attachments, pen drives, digital images, e-greetings, audio or video clips, etc.
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