based on acurate data

1. What is computer virus???
Computer viruses are small software programs that are
designed to spread from one computer to another and to
interfere with computer operation.
like email virus, worms and many more…..

2. How these viruses are Activated ???
Computer viruses are easily spread through the use of
attachments in various email messages or via messages
from instant messaging; so, you must never open
unexpected email attachments unless you know and trust
whoever sent the message.
Computer viruses can also spread through downloads you
do while online.

3. How Computer Viruses Operate???
 Your computer is running slower than normal.
 Computer applications are not working right.
 You find unusual, error messages.
 Your antivirus program is suddenly disabled or cannot be
restarted.
 New and unusual icons suddenly appear on your desktop.
 A shortcut of every folder created with every folder.
 And your all data remove from hard disk.

4. Melissa
 Created in 1999 by David L. Smith
 One of the first email-activated viruses
 Caused $1.2 billion in damages and losses
 David L. Smith was:
 Fined $5,000
 Sentenced to 20 months in jail
 Forbidden from accessing computer networks without court
authorization

5. ILOVEYOU
 Created in 2000 by Onel de Guzman.
 It Also A email-activated virus.
 caused an estimated $15 billions in damages.
 Onel de Guzman was arrested on suspicion of
creating the virus.
He and his co-conspirator were later released as the
Philippines had no laws at the time against writing
malware

6. What Is Antivirus??
Anti-virus software is a program that is designed to
prevent, detect, and remove software viruses, and other
malware like worms, Trojans, adware, and more.

7. How does an antivirus works???
Anti-virus software typically uses two different techniques
to accomplish this:
 Examining files to look for known viruses by means of a
virus dictionary
 Identifying suspicious behaviour from any computer
program which might indicate infection

8. Why we need to update an antivirus??
Viruses increasing rate as per the cyber security
teams at Verizon and Symantec:-
 1990 :- 200 to 500
 1994 :- 4500-7000
 1998 :- 20000
 2000 :- 50,000
 2008 :- 1,122,311
 2015 :- 317 million
 And in 1 day on an average 1 million virus
generated.

9. When we update our antivirus than coding of these
viruses update to the dictionary of antivirus. And it
helps antivirus in preventing the computer from
new malwares.

10. Some Of Antivirus Available In Market..
 Quick Heal Total Security
 K7 Total Security
 Norton Antivirus
 eScan antivirus
With there various variant its may be for 1 pc or many
And for 1 year and many……

11. T H A N K Y O U … . . . . . . .