Remove Computer Virus

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Virus
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Virus
Computer virus is a small program that alters the
way a computer operates without the permission of
the user. It overwrites replaces another program
in order to reproduce itself since they are the
malicious malevolent software often referred as
Malware. It can easily infect your operating
system by reading, previewing infected emails.
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How virus came in our life

• In the year 1980 virus spread using personal
  computer, from home, business and school. Trojan
  Horse a common virus spread through the use of
  bulletin boards. In the year 1983 the first virus
  was created by Fred Cohen and in the year 1986 it
  was named as Brain. In 1987 Jerusalem the first
  destructive virus was created and then the
  invention of new viruses took it speed.

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Types of Virus
Boot Sector Virus
Macros virus
Trojan Horse
Worm
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BOOT SECTOR VIRUS

• Boot sector viruses generally hide in the boot
• sector, either in the bootable disk or the hard
• drive. It attaches itself to the primary active
• partition of the hard disk that is read by the
• computer upon boot up.

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Macros virus

• Macro are mini-programs that automate series of
  operations so that they can perform as a single
  action, thereby saving the user from having to
  carry them out one by one. This viruses infect
  files that are created by using certain
  applications and programs that contain macros.
  They are platform-independent as well as written
  in language of the application instead of
  operating system. It infect documents created
  from Microsoft Office Word, Excel, PowerPoint and
  Access files. E.g.W97M.Melissa,Bablas,WM.NiceDay,W
  97M.Groov.

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Trojan Horse

• Trojan Horse is fake application that claims to
  be a useful application but in reality it is a
  malicious program but it do not replicate itself.
  It contains malicious code that when triggered
  causes loss or even to identity or data theft.
  E.g. Trojan.Vundo Retrieving users critical
  information. i.e. name, password, bank account
  details. Erasing or overwriting data on a
  computer. it even acts like a spying agent that
  can gather your confidential information.

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Worm

• Worm is also considered as a destructive program
  that has the ability of self-replicating that
  blocks the system that degrades the speed of your
  operating system.

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How to know if PC is infected with Virus?

• Your computer will behave strangely
• You will notice an unexpected images or messages.
• Programs will start up unexpectedly
• You will find a notification from firewall that
  the application has tried to connect to the
  internet.
• Your computer will freezes frequently or
  programs will start running slowly.
• You will receive lots of system error messages.
• You will find that files or folders have been
  deleted or changed.
• Your web browser behaves erratically youll be
  unable to close a browser window.

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Best solution to remove threat_name!

• Install antivirus software and keep it
  up-to-date.
• Do not open the email until you are not familiar
  with it.
• Keep windows up-to-date this will help you to
  protect your Computer
• Use firewall that will alert you if it finds any
  suspicious activity if a virus tries to connect
  your computer.

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Manual process to remove Virus!

• Start your computer when you will find the
  computers manufacturer logo repeatedly press F8
  key and then press Enter by moving your arrow on
  Safe Mode with Networking. Use System Restore to
  restore the computer. Go to Start, menu, and open
  the drive that your files are on, usually C is
  where its located. Hit Alt on your keyboard to
  bring up the File menu that has File, Edit, View,
  etc. and click on Tools, then click on Folder
  Options. Go to the View tab and in the Advanced
  Settings box and navigate down to Hidden Files
  and Folders where the viruses like to hide
  themselves in. Right click them and delete it.
  Make sure to create a system restore point once
  the infection is removed because if something
  goes wrong, system restore is always an option.

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Precautions to avoid similar attacks!

• Turn on the firewallUse firewalls as there are
  two kinds of firewall hardware and software
  firewall so use one software firewall. Running
  multiple firewalls is useless and even using more
  than one software firewall on the same connection
  can cause problems with your internet
  connectivity or other unexpected issues.
• Keep your Computer up-to-date
• Dont get tricked into downloading malware so
  avoid clicking on unknown sites and links
• Update your web browser on regular basis doing so
  will change most of the options and features.

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Highly Advised Solution
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Scanner .
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Virus, rogue, spywares, adware, viruses,
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