Uncover the World of Computer Viruses

Computer Viruses

• A computer virus is a piece of code that attaches itself to a program or file, replicates itself, and spreads to other computers, causing harm or degradation to the system.
• The main difference between a computer virus and a computer worm is that a virus requires a host program to replicate, whereas a worm can replicate itself without a host.

Evasion Techniques

• Viruses evade antivirus software by using techniques such as code mutation, stealth, and polymorphism to evade detection.

Origins of the Term "Computer Virus"

• The term "computer virus" is derived from the biological concept of a virus, where a small organism replicates itself and spreads to other organisms, causing harm.

Infection and Spread

• Virus writers use vectors such as email attachments, infected software downloads, and infected websites to initially infect systems and spread the virus.

Test your knowledge about computer viruses and their impact on computer systems. Learn about their replication methods, how they infect host programs, and the metaphorical connection to biological viruses.