computer virus ppt

Name-MAYANK MIGLANI

Class-7th(white)MODEL School

What is a Computer Virus?A computer virus is a computer program

that can copy itself and infect a computer without the permission or knowledge of the owner.

One of the first detected virus was the Creeper virus in the early 70’s

Before computer networks became widespread, most viruses spread on removable media, particularly floppy disk.

Type of VIRUS

Types of computer virusesBoot viruses:- The boot virus copies the virus code

in the boot sectorPolymorphic viruses:- They are coded in such a

way that they infect a system and change their signature

Macro viruses:- Macros are blocks of code written to automate frequently performed tasks and embedded in a program file

Worms:- Worms are program that replicate and spread to other system

Trojans:- A Trojan is a program file that claims to do something but it actually does something that is not required

Signs Your Computer is Infected Functions slower than

normalResponds slowly and

freezes oftenRestarts itself oftenSee uncommon error

messages, distorted menus, and dialog boxes

Notice applications fail to work correctly

Fail to print correctly

Did you know?One German newspaper

tragically lost 2,000 pictures from its archive.

The perpetrator turned out to be a 23-year-old Filipino computer science student who more or less plagiarized all of his code.

The lack of laws in the Philippines covering computer crimes, he pretty much got away with his crime.

Prevention Upload and use

antivirus softwareBe aware of the e-

mails and attachments you open

Check for updates on antivirus software regularly

Make sure antivirus software is installed correctly

Some anti viruses software

Conclusion

For better and safe computation anti-virus software should be installed and be helpfull for global network system freely.