You might be familiar with computer virus if you don't know you can check out here. Basically, virus disturbs your proper functioning of your Computer. There are a lot of viruses like Trojan Horse, Worms and many more viruses are there but only some of them are very very destructive means fully disaster for your computer. So, today in this blog we are going to cover up Top ten most destructive computer virus in history ever.
This worm was first discovered by the Polish research security work which basically works in this type of field. This worm doesn't spread like any other virus it spreads through spamming and making itself a large number of random IP address.
10. I Love You Virus
Yes, don't get confused, it's a computer virus and worm and it works like a natural disaster that has occurred on your computer. Also known as love letter virus, it basically injects your computer through love letter emails. This virus originated from the Philippines and written on VB script. Basically, this virus comes from unknown emails as you can see below:-
This virus comes with a line subject "I LOVE YOU" and the attachment with "LOVE LETTER FOR YOU".
Interestingly, this virus attacked ten million computers in just a year after it was first detected. On May 2000, this virus first detected in Philippines where it was created. Basically, this virus enters your PC whenever you click that attachment of that email and opening of attachment run Visual Basic code and get injected into your PC. This virus makes unwanted copy of image files, video files, data files and many more and uses more of your Hard Disk space. After the detection of this virus on 2000 it already damaged many systems and had caused $5 to 8 billion dollars. If you have ever received these type of emails please report it to Google for your safety.
9. My Doom Virus
My Doom Virus also is known as ' shinigami' is a computer worm which was first detected in January 2004. Basically, this virus get injected in your PC through emails like other viruses spreads
Basically, when this virus get injected into your PC it automatically crashes your system without any information or anything like that. *As Source* on 2004-2005 it became the highest spreading computer viruses through emails. It's look like "I LOVE YOU VIRUS" because it spreads through emails by a short message tells that it was created by a paid worm's creator. The message was "Andy; I'm just doing my job, nothing personal, sorry." As, of by doing research on this computer worm tells that this virus is originated by a Russian hacker.
Basically, when this virus get injected into your PC it automatically crashes your system without any information or anything like that. *As Source* on 2004-2005 it became the highest spreading computer viruses through emails. It's look like "I LOVE YOU VIRUS" because it spreads through emails by a short message tells that it was created by a paid worm's creator. The message was "Andy; I'm just doing my job, nothing personal, sorry." As, of by doing research on this computer worm tells that this virus is originated by a Russian hacker.
8. Melissa Virus
Melissa also known as Macro Virus which was first detected on 1999. This virus was created by David L. Smith and originated in itself New Jersey. Basically, this virus get injected in networks which later on give heavy loads on networks. After the detection of this virus it caused too many damages to servers and computer systems and had caused about $80 million worth of network damages, personal computers. For this, the David L. Smith get sentenced of ten years prison and get $5000 fine to US Government.
7. Wanna Cry Ransomware Virus
Wanna Cry Ransomware Virus is a computer worm. Interestingly, this is the latest most destructive virus in all-over the world which was first detected on 2017. This virus get infected worldwide about above 70% of computer systems of world get infected with this virus. Basically, this virus comes from spam emails or third-party software and get installed on your PC without user information and basically this virus locks your PC and pop-ups a message like you can see below:-
This message tells that if you want to unlock and save your computer you have to give a specific amount of cash in Bitcoin if you do not pay them they basically crash your PC completely. So, because of this above 70% of windows computers get infected with this dangerous virus.
6. Code Red Virus
Code Red Virus is a computer worm which was first identified on July 2001. Basically, this virus doesn't get injected in PC or laptops. Basically, this virus attacks Microsoft IIS web server and causes to severs crashes about two million web server get infected with this virus. After a time the two employees of eEye digital discover this virus. After this virus get injected into a website server the website main page shows:-
5. Stuxnet
Stuxnet is a computer worm which was first identified in 2010. Basically, this worm doesn't harm to PC. This worm is in development since 2005 which particularly targets SCDA systems and also as a source said that this virus is responsible for the damage of Iran's nuclear program. Basically, this virus attacks Programmable logic operators also known as (PLC). This worm was discovered by Sergey Ulasen, spreading but Microsoft Windows and the target destination was an industrial control system in which the nuclear weapons production.
4. SQL Slammer
SQL Slammer is a computer worm which is also called the fastest spreading computer worm at that time. This virus was first detected in 2003 and *As Source* this virus took 15-20 minutes to spread worldwide, imagine how fast is this virus. This virus has damaged over 400 thousand computers worldwide. Basically, this virus injected into your PC through emails or software and then lose to internet access in your PC. Interestingly, this virus was created by Black Hat Hackers to steal personal of different users like Credit Card details, Password etc.
3. Blaster
Blaster, which also known as MSBlast. Is a computer worm which spreads on windows running operating systems like Windows XP, Windows 2000. This virus was first detected during August 2003. This worm spreads fast when it gets injected in the big server or University from networks. This virus basically shows the message to the founder of Microsoft.
This worm was first discovered by the Polish research security work which basically works in this type of field. This worm doesn't spread like any other virus it spreads through spamming and making itself a large number of random IP address.
2. CIH
CIH also was known as 'Spacefiller' is a Microsoft Windows 9x computer virus which was first detected in 1998. Basically, this virus gives a load to the infected drives and overwrites the data without user information and in some cases, it also destroys BIOS ( Basic Input Output System) of PCs. This virus was created by Chinese man Cheng Ing-hau which later on he became the CEO ( Chief Executive Officer) of 8tory. *As Source* this virus infected worldwide around 60 million computer systems get infected with this virus which later on caused about $1 Billion US dollars damages.
1. Sasser
Sasser is a computer worm which was first detected on April 2004. This virus affects running vulnerabilities windows XP, Windows 2000. Basically, this virus spreads through explioting a bufferoverlow in the component LSAAS ( Local Security Authority Subsystem Service). Delta airlines and American Express has reported some problems in their system which give the result of this virus. Interestingly this virus was written by an 18-year-old German computer science students as of this he gets arrest by FBI.
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