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Computer virus is a malicious program that can rapidly replicate itself, damage files avoid detection unlike other computer program. Also Computer virus resides in the computer memory hence the system must follow the virus instruction.

These instructions are called "PAYLOAD". Virus affect the executable code of any infected file or program when it is open.

The viruses its been very dangerous, once if computer was attack it will destroying and scarter everything and changing the data on your computers.

Worm viruses Worm viruses are self- contained programs that remain hidden and propagate via email or duplication.

Macro viruses Macro viruses tend to attack data files, like word documents and spreadsheets, causing you to lose files or cause your word or excel software to work incorrectly.

Trojan viruses Trojan viruses pretend to be other software, the name therefore taken from the Trojan Horse in Greek mythology. Trojan viruses pretend to be a legitimate piece of software, but in reality can attack your hard drives, deleting files and re- writing system files. They cause your computer to become unstable, particularly when operating system files are deleted.

Boot viruses Boot viruses attack the boot sectors on your hard drive and interfere with your computers basic operation, making your operating system run strangely or even corrupt it all together.

E-mail Viruses Email is probably the most common method for spreading viruses. Plain text email messages dont normally spread viruses. Most email viruses are spread via attachments to email messages, or in email messages containing embedded executable code.

For example, your computer would need to open an attachment or open an html link embedded in the message. To protect yourself against email viruses it is important that you do not open attachments from senders whom you dont know, or which come from a free email source such as hotmail or yahoo. If you use an email client to check your email, avoid clients that automatically open attachments (like Outlook Express).

Final Word, if this post its help you for protecting your personal computer from malicious attack take a little time to share it on social media for your friends.

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