Computer Viruses

Malicious content like viruses have always been hot topics in the aspect of computer security. A virus can slow down your computer’s speed and performance to monitor or steal your personal information like bank account details, passwords etc. The reason that viruses are constantly floating around on the Internet is their ability to replicate themselves. A virus can also make a duplicate copies of themselves to spread to other computers. A virus may start damaging your computer the moment you execute that file. They can also cause serious damages to your computer like corrupting registry files, system crash, slow system performance.

There are different types of viruses and it’s important for you to know which ones are which.

• Memory Resident Viruses
• Non-memory Resident Viruses
• File Viruses
• Script Viruses
• Macro Viruses

Memory-resident viruses:

These kinds of computer viruses look for other hosts to infect once it is executed. A memory-resident virus is basically programmed as a attractive advertisement and waits until the computer user executes it so that it can corrupt them.

Non-memory resident:

A non-memory resident is a kind o virus that can replicate itself and has a finder module for other hosts. Once executed by the user, it instantly starts searching for other hosts to infect your computer. While the replication module corrupts all files, the finder module searches for more viruses to corrupt. It instructs the replication module to find files to infect. The non-memory resident virus can take complete control of the infected programs.

File Viruses:

The most common category of viruses are file viruses. They get into your system to infect program libraries and registry files on your computer. This virus is tricky because as it enters the hosts file it modifies itself to make sure that whenever the file is opened the next time another virus is launched.

Script Viruses:

Script viruses are also a kind of file viruses but are written in computer languages like HTML, PHP and JavaScript etc. However, a script virus may only be a small part of a larger virus.

Macro Viruses:

Macro viruses are those viruses which use the macro’s within the applications installed on your PC to replicate themselves on your computer. Macros are usually used in Word processing programs to make returning tasks automatic or easy. Macro viruses can spread via e-mail and can also damage a number of important documents. Removing a virus or a virus infected file from your computer usually starts with evaluating the effects of the virus infection to determine the manner in which the virus could be removed. If the virus has recently infected your computer, you can try to remove the virus by using a restore point to set the computer back to the way it was before the infection or install a security software on our PC.

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