Computer viruses

Done by: Abir Almaqrashi

Ahlam Alabri

Shiekha AlRashdi

Computer viruses and antivirus

The Outline

Definition of viruses. Why people create viruses. How the viruses enter your computer. Examples of viruses. Protecting information & computer. Definition of antivirus. Antivirus functionality. Examples of antivirus. Selecting an antivirus.

It is a small software program that is designed to replicate itself. It has a negative effect, such as causing a program to operate incorrectly or corrupting a computer's memory.

What is a Computer Viruses

Why people create computer viruses

To make money. To steal account information. To cause problems and trouble for others.

How the viruses enter your computer?

1. Internet Software , gaming and multimedia

downloads Opening e-mail attachments Accepting without reading

2. Devices USB devices CD,DVD Bluetooth device. Mobile devices.

Examples of Viruses

1. Boot Sector Virus

2. Macro Virus

3. File Virus

4. Steath Virus

5. Polymorphic virus

6. Multipartite Virus

7. Worm

8. Trojans

9. shortcut virus

How to protect information in general.

Keep your computer clean and cool .Use clean, steady power source .Keep backups.Use good password.Keep your OS up to date.Run a personal firewall.Delete spam Do not install sharewareDownload and install a spyware removal tool.

How to protect your computer from viruses

Technical measuresAnti-virus softwareUpdate

Check mail-servers Reject all e-mails of dangerous or unknown extensions

Back up your important files

scan any removable hardware

Install security updates for your operating system and

programs

How to protect your computer from viruses

The definition of antivirus.

antivirus" is protective software designed to defend your computer against malicious software.

How Antivirus Software Works

On-Access Scanning

Full System Scans

Virus Definitions

Heuristics

Examples of Anti-Virus Software

Shield Deluxe

Trend Micro

Norton Antivirus

Panda Antivirus Pro

Examples of Anti-Virus Software

Zone Alarm Anti-Virus

Vipre Antivirus

BitDefender Antivirus

Kaspersky Antivirus

How to Choose the Right Antivirus Software for Your PC

1. narrowed the list to meet your operating system

2. narrowed the list to meet your usage needs

3. check the major certification and testing agencies

4. (detection) check out the test scores

5. Evaluation

The top 10 antivirus software 2013 reviewed by (toptenantivirus.net )

BitDefender Antivirus

Vipre Antivirus

Perfect Antivirus

Kaspersky Antivirus

5 Norton Antivirus

ESET Nod32 Antivirus 5

F-Secure Antivirus

TrendMicro Titanium Antivirus

Zonealarm Antivirus

McAfee Antivirus Plus