COMPUTER VIRUS

Presentation byMaunishka Malhotra

VII-BG.D. GOENKA SCHOOL, ROHINI-22

INTRODUCTION TO COMPUTER VIRUS

What is computer virus ?Types of computer virus?What a computer virus do?•Prevention from computer virusBest antivirus software.

What is computer virus?

A computer virus is a software program with a ability to make copies of itself ,which attacks itself to other applications or files.

T H E R E A R E T H R E E T Y P E S O F C O M P U T E R V I R U S

BOOT VIRUSPROGRAM VIRUS MICRO VIRUS

Types of computer virus.

Boot virus:

Boot viruses infects the boot records of hard disk and floppy disks.generallyThese are considered more dangerous than program viruses.

PROGRAM VIRUSthese viruses infects program files,whic-h have extensions such as .COM,.EXE.,SYS.,DLL,.OVL, or .SCR.program files are attractive targets for computer virus because they are widely used and have relativity,simple formates to which viruses can attach themselves.

These viruses infects data files.for example,microsoft,word document and template files are suspectible to macro virus attacks they spread rapidly as infected documents are shared on networks or downloaded from internet sites.

Macro viruses

What a computer virus do?

a virus tries to take control of computer system it has infected at the first oppurtunity availible.it makes copies of itself and also try to carry harmful task written in its program.this process can happen so quicly that the user is not even aware of the presense of a virus in his/her computer.

BEST ANTIVIRUS SOFTWARE.

Nortion antivirus.Mcaffee virus scan Kaspersky antivirus

Norton antivirus

Norton antivirus is a product of symantec corporation.founded in 1982.Notion check the following program•Boot record s•Programs(at the time you used them)•All local hard drives,•Files download from internet,•Usbs(when in use)

Mcaffee virus scan

McAfee, Inc. is an antivirus software and computer security company

headquartered in Santa Clara, California. It markets McAfee VirusScan

and related security products and services, including the IntruShield,

Entercept, and Foundstone brands. ...

Kaspersky ANTIVIRUS

Kespersky is product of kaspersky lab,A russian computer security company,•Co-founded by natalya kaspersky antivirus,do the following things•Invites virus scan by opening the kaspersky antivirus window.

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