Computers have become a very important of our life and that is why we make sure to protect it and the best way to protect is to install antivirus software on it. The online market is filled with thousands of antivirus programs, some are free and while some have some charges. But just like everything there are many facts of computer viruses that will leave you baffled and of many of many facts is that there was a very famous virus in January 2004, famous in a way, that it caused panic in the whole world. What it did was that it infected almost half a million computers in a day in all around the world.

Then after some years passed by again in January 2007, a virus was launched and it was called the Storm. Why this was called the storm because it infected at least 50 million computers around the world like a storm. The command.com files are said to be the untouchable but there was a virus called The Leigh, it was one of the first viruses that affect the command.com files. There are good viruses as well, and just like that in 1990, the famous Norton antivirus launched its first virus and it was called the Symantec. This was released by Norton and it touched millions of computers in the world and this virus was released to kill the bad viruses in the computers. But you can always buy an antivirus protection software and an antivirus cleaner.

These viruses have there kinds as well, and the first second kind of virus was the polymorphic computer virus and it was called the Tequuila and it was released in 1991. Whatever device is connected with the internet, it will have a virus and that is why our smart phones also have viruses and the first virus for smart phones appeared in March, 2005 and it was called Commwarrior-A. Viruses have always been intelligent and us, humans thought transferring information by floppy was safe but all kinds of viruses found out a way to travel in floppy as well. The windows was secure before the WinVer1.4 was released for windows only, in windows, the first .exe virus was called Groove and the first boot virus was created by Faroq Alvi brothers.

Types of viruses

You might find antivirus softwares that are supposed to perform the same type of operations but viruses are already available in a large variety. Some of these viruses are common and can easily be removed from your computer but some of them require a very long process to be deleted. In fact, viruses are divided in two types regarding their operations. One type will only infect your computer by making you unable to use your computer and the other type is used to steal someone’s data remotely. However, both types of softwares are bad for the computer; let’s find out some common viruses that can attack our computer.

First of all, we have the Trojan virus. You can call this virus one of the most dangerous computer viruses ever. This virus is designed by hackers and used to steal an individual’s data. You can easily get this virus from any cracked or infected file from the internet. Once you have this in your computer, it will be hard to detect until you install an antivirus. You can receive the signs of this virus by your computer acting abnormally. Before you get any of these viruses, you must have a virus scanner software in your computer for protection.

Next are targeting viruses. They are also known as file infecting viruses. These viruses are designed to infect a particular file. The attack or operation of this virus comes into action when you accidentally download it and one of your particular files stop working and start showing some abnormal signs.

The virus that is very complex to be removed is known as the boot sector virus. This kind of virus is once added in your computer and then it spreads with the files that can be deleted from your computer. This virus attacks the master boot record and it’s a very risky task to remove such virus. Most of the time, this virus is removed by cleaning the entire computer and deleting everything.

There are also some viruses that aren’t meant to cause harm to any file. The purpose to create such viruses is to attack the empty space in the computers. In this way, your files will be saved but the remaining space in your computer will be influenced by such types of viruses.

Another virus is the overwriting virus that deletes all the files from your computer; therefore the only way to remove this virus is formatting your computer. If you find this explanation helpful, please read related topics as well for more info.