1. Computer Virus
Nick DeFabis

2. What is being discussed
What is a virus?
History of viruses
What it can do
Different types of viruses
Preventative measures

3. What is a virus? Program that replicates itself
Spreads from multiple computers
May corrupt or delete data
Can be disguised as different files
Hidden in pirated software

4. History of computer viruses
John Von Nuemann described self-replicating programs in 1949
Programmers developed Core Wars in 1960s
First anti-virus: Reeper
Officially announced in 1983

5. History continued MS-DOS targeted by Brain in 1986
First Trojan: PC-Write
Surviv-02 created in 1987
Led to Jerusalem and Viernes 13
“Morris Worm” affected 6,000 computers in 1988
Today’s malicious codes were developed in 1995

6. What they can do

7. Types of viruses
Trojan horses
Worms

8. Conclusion: Preventative measures
Anti-virus software
Back up files
Virus removal
Recovery methods
Computer user awareness

9. Sources http://support.microsoft.com/kb/129972