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How do Computer Viruses Work?

How do Computer Viruses Work?. Max Miller 2005. What is a Computer Virus?. similar to biological viruses. both parasitic. a virus can be seen and a computer virus is a program. Virus Programs. Programs contain: how it destroys files etc. replication information. how it disperses.

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How do Computer Viruses Work?

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  1. How do Computer Viruses Work? Max Miller 2005

  2. What is a Computer Virus? • similar to biological viruses. • both parasitic. • a virus can be seen and a computer virus is a program.

  3. Virus Programs • Programs contain: • how it destroys files etc. • replication information. • how it disperses.

  4. Viruses • are most basic viruses. • only destroy and replicate. • can easily be detected and destroyed.

  5. e-Viruses • use e-mail to spread and infect. • launch when attachment is opened. • then sent to a person on your e-mail list. • below is an infamous e-virus called the ILOVEYOU virus.

  6. Worms • exploit security holes. • replicate in these holes. • replicate faster than viruses.

  7. Trojan Horses • are files. • when file is opened, virus is launched. • it begins infecting.

  8. Other Viruses • stealth viruses “hide” from anti-virus programs. • parasitic viruses replicate by destroying data. • polymorphic viruses change program to avoid detection.

  9. Origins of Viruses 1. Creator is mentally destructive. 2. Creator wants to make a mess of things. 3. Bragging rights.

  10. Virus Protection • anti-virus systems must be bought or downloaded.

  11. Firewalls • stops viruses in the internet. • is like a filter that stops all viruses etc.

  12. Virus Limitations • Viruses can’t: • infect the monitor • infect computer chips • infect compressed files

  13. Source of Viruses

  14. Where do Viruses Come From?

  15. All About Me My name is Max Miller and I’m 13 years old. I like The Simpsons, Calvin & Hobbes, and Final Fantasy . I hope to be a cartoonist when I grow up.

  16. Bibliography ‘Home Page. 25 Apr. 2005 <http://www.howstuffworks.com> Home Page. 27 Apr. 2005 <http://www.faqs.org> Home Page. 2 May 2005 <http://tml.hut.fi/…/Tik-110.501/1997/viruses.html>

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