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Sometime, a macro virus sends itself by attaching with e-mail to the people in the user's address
                 book. Melissa and Bablas are the most commonly known macro viruses.

                 E-mail Virus

                 An E-mail virus is a type of computer virus that transmit from one computer to other through
                 e-mail messages. Some e-mail viruses can also be transmitted as an infected attachment with
                 the e-mail message. It gets active into the memory when a user opens an infected e-mail or
                 attachment. It sounds very simple but an e-mail virus can erase files, destroy information and
                 cause computer crashes.


                      How does a Computer get infected with Virus?

                 Computer viruses spread through several ways. Some of them are:
                    Using virus infected CDs/Pen Drives.
                                                                                             CD
                    Opening an infected e-mail attachment.
                                                                                                           Pendrive
                    Downloading an infected program from Internet, Pen Drives, CDs or DVDs.
                    Running an infected program (which can be a game, screen saver, etc.)

                    Through local computer networks.
                                                                                                 E-mail

                      How Do You Know Your PC has a Virus?
                 An infected computer system will:

                    start displaying unusual messages on the screen.                           Tech Fact
                    load the programs late.                                               The first widespread
                    take more time to shut down the windows.                               computer virus was
                    increase the size of the infected files.                             BRAIN, created in 1986
                                                                                               in Pakistan.
                    change the file names or types automatically.

                      How to Prevent a Virus?

                    Download only legal software.
                    Don’t open any unknown e-mail.
                    Don’t open any e-mail attachment from unknown sources.
                    Don’t download music, program or games from unknown sources on the Internet.
                    Install an antivirus program in your computer system.

                    Scan Pen Drive, CD and any other external storage device for viruses before opening in computer.

                                  Let’s CatCh uP

                             Match the following.
                             1.  Melissa                     a. Macro Virus
                             2. Spyware                   b. First widespread virus

                             3. Stoned                     c. Malware
                             4. BRAIN                     d. Boot sector Virus

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