8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 1/7

COMPUTER VIRUSPRSENTED BY :

ASHUTOSHKAUSHIK 

ANUJ KUMAR

8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 2/7

A computer virus is a small software program that spreadsfrom one computer to another computer and thatinterferes with computer operation. A computer virus maycorrupt or delete data on a computer, use an e-mailprogram to spread the virus to other computers, or evendelete everything on the hard disk.

Computer viruses are most easily spread by

attachments in e-mail messages or by instant messagingmessages. Therefore, you must never open an e-mailattachment unless you know who sent the message orunless you are expecting the e-mail attachment.Computer viruses can be disguised as attachments of 

funny images, greeting cards, or audio and video files.Computer viruses also spread by using downloads on the

8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 3/7

 The Creeper virus was first detected on

ARPANET, the forerunner of the Internet in the early

1970s.[1] It propagated via the TENEX operating

system and could make use of any connected modem

to dial out to remote computers and infect them. It

would display the message "I'M THE CREEPER : CATCH

ME IF YOU CAN.". It is rumored that the Reaper

program, which appeared shortly after and sought out

copies of the Creeper and deleted them, may have

8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 4/7

If you suspect or confirm that your computer is infected with acomputer virus, obtain the current antivirus software. The followingare some primary indicators that a computer may be infected:

 The computer runs slower than usual.

 The computer stops responding, or it locks up frequently.

 The computer crashes, and then it restarts every few minutes.

 The computer restarts on its own. Additionally, the computer does

not run as usual.

Applications on the computer do not work correctly.

Disks or disk drives are inaccessible.

 You cannot print items correctly.

 You see unusual error messages.

 You see distorted menus and dialog boxes.

8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 5/7

8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 6/7

 To protect your computer against viruses, follow thesesteps:

1. On the computer, turn on the firewall.

2. Keep the computer operating system up-to-date.

3. Use updated antivirus software on the computer.

4. Use updated antispyware software on the computer.

8/14/2019 Presentation VIRUS1

http://slidepdf.com/reader/full/presentation-virus1 7/7

PLEASE DO SAFE COMPUTING .