1. Name : ALya Mohammed ID: H00224594
Computer virus
Name : ALya Mohammed
ID: H

2. Outline : What is a computer virus Virus through the internet
Symptoms of virus Attack
Examples of risky file types
Types of viruses
How to protect from viruses
Top ten Antiviral programs
Symantec Norton Antivirus:

3. What is a computer virus?
Computer virus : is a computer program that can copy itself and infect a computer without permission or knowledge of the user.

4. Virus through the internet
Today almost 87% of all viruses
are spread through the internet.
Transmission time to a new host
is relatively low, on the order
of hours to days

5. Symptoms of virus Attack
Computer no longer boots up.
Screen sometimes flicker.
Computer runs slower then usual.
System crashes for no reason.
Files/directories sometimes disappear.

6. Examples of risky file types
The following file types should be treated with suspicion and be confirmed with the sender before being opened:
.exe
.pif
.bat
.vbs
.com

7. Types of viruses:
Boot viruses: is a computer virus that infects a storage device's master boot record (MBR)
Program viruses: is a computer virus that can only spread if you run the specific program that it has infected
Multipartite viruses: a computer virus that infects and spreads in multiple ways:
Stealth viruses: is a computer virus that uses various mechanisms to avoid detection by antivirus software.

8. How to protect from viruses
Best way to protect yourself is to prepare your computer against viruses in advance
to protect you computer is :
to use updated anti-virus program

9. Top ten Antiviral programs
Data Fellows F-Prot
EliaShim ViruSafe
ESaSS ThunderBYTE
IBM Antivirus
McAfee Scan
Microsoft Anti-Virus
(Symantec Norton Antivirus)
S&S Dr S&S Dr Solomon's AVTK.
Bit Defender 2008

10. Symantec Norton Antivirus:
Keeps you safe when you surf, shop and bank online
Protects you from social media scams
Stops both today's and tomorrow's online threats
Blocks infected and dangerous downloads

11. References : http://en.wikipedia.org/wiki/Computer_virus
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