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Macro Virus
A macro virus is a type of computer virus that is primarily designed to infect a specific type
of documents such as Word or Excel files. If we open a macro virus-infected document, the
macro virus gets active into the memory and starts infecting other documents. Sometimes,
a macro virus sends itself by attaching with e-mail to the people in the user's address book.
Prime (Ver. 2.2)-VII An E-mail virus is a type of computer virus that transmit from one computer to other through COMPUTER VIRUS
Melissa and Bablas are the most commonly known macro viruses.
E-mail Virus
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,
82 and cause computer crashes. 83
How does a Computer get Infected with Virus?
Computer viruses spread through several ways. Some of them are:
• Using virus-infected CDs/Pen Drives.
• Opening an infected e-mail attachment.
• Downloading an infected program from Internet, Pen Drives,
CDs or DVDs. E-mail
• Running an infected program (which can be a game, screen saver,
etc.)
Pendrive CD
• Through local computer networks.
How do you know your PC has a Virus?
An infected computer system will:
• start displaying unusual messages on Fun The first widespread computer
the screen. Fact! virus was BRAIN, created in
• load the programs late. 1986 in Pakistan.
• take more time to shut down the windows.
• increase the size of the infected files.
• change the file names or types automatically.

