What is a Computer Virus?

• A program designed to corrupt other programs.•Self- replicating programs • Install themselves without the users consent.• Spreads from one computer to another.

What is the impact of a virus?

• Crashes the computer during certain operations.• Can delete important files• Will make your PC inoperable•Can send wrong messages

How is a virus activated?•Reading an email does not let a virus get into your PC.• Clicking on a link or opening an infected email attachment does.

Types of virus?1) Trojan It is a hacking program, which is self replicating. It can control all functions of the computer.They infect computers without creating any problems.

2) WormsIt replicates itself to infect other computers.They don’t corrupt files, but can delete or modify its

content.Standalone software, does not require a host program

Who was the first person to create a virus?

The first PC virus was a boot sector virus named Brain, created in 1986 by the Farooq Alvi Brothers, operating out of Lahore, Pakistan.

Initially it was not meant to be a destructive virus.

How does a virus get on my PC?Email attachment is the most common way that

lets a virus enter your PC. Downloading documents from the internet.Accepting advertisements without reading them

fully.

How to delete a Virus?

The most common method to delete a virus is using an Antivirus software.

Interesting facts about computer viruses

40% of US households are affected by computer viruses followed by Russia.

90% of emails contain malware (a malicious software)

Amazon, Ebay and Apple were some of the greatest victims of phishing attacks.

Precautions to be taken to avoid virus attack

Scan removable devices such as CDs, floppy, USB drive, etc before inserting.

Avoid installing pirated software's.Perform daily scan. Don’t click on email links and attachmentsUse strong passwords and change them

regularly Install a good Antivirus software.

Thank You