Module V Viruses and Worms.Introduction to VirusComputer viruses are perceived as a threat to potx

Viruses and Worms

Module V

Introduction to Virus

Computer viruses are perceived as a threat to both business and personnel

Virus is a self-replicating program that produces its own code by attaching copies of

it lf i t th t bl d itself i

n

t

o

other execu

t

abl

e co

des

Operates without the knowledge or desire of the computer user

Virus History

Year of

Discovery

Virus Name

1981 Apple II Virus- First Virus in the wild

1983 First Documented Virus

1986 Brain, PC-Write Trojan, & Virdem

1989 AIDS Trojan

1995 C t oncep

1998 Strange Brew & Back Orifice

1999 Melissa, Corner, Tristate, & Bubbleboy

2003 Slammer, Sobig, Lovgate, Fizzer, Blaster/Welchia/Mimail

2004 I-Worm.NetSky.r, I-Worm.Baqle.au

2005 Email-Worm.Win32.Zafi.d, Net-Worm.Win32.Mytob.t