Computer virus truly means a nightmare for every computer user.
Computer virus is like cancer for computers which slowly kills our computer.
In this list, we have mentioned 20 most destructive computer viruses.
This virus was created by two Filipino Programers, Reonel Ramones, and Onel de Guzman.
It is said when Yankee Doodle was executed, the virus itself becomes the memory resident.
Yankee Doodle infects all .com and .exe files.
The virus would play a tune Yankee Doodle itself every day at 4 PM if it was in memory.
Nimda
Nimda was first found on September 18, 2001.
The name of the virus is derived from the word Admin if spelled backward.
Nimda used Emails, server vulnerabilities, shared folders and file transfer to spread itself.
It became the internets most widespread virus within 22 minutes.
The primary purpose of the virus was to slow down the internet traffic considerable causing a DoS attack.
At that time 60,000 computers were attached to the internet, and the worm infected 10% of them.
The virus was first identified in November 2008.
This virus infected millions of computers which include government, business and home computer in over 190 countries.
Storm Worm
The Storm Worm is a backdoor trojan horse that was identified in late 2006.
As of January 22, 2007, the Storm Worm accounted for 8% of all malware infections globally.
I am a very kind virus.
You have done many works today.
So, I will let your gear slow down.
Have a nice day, Goodbye.
Press a key to continue.
This virus infects all .exe files on the computer.
Due to its special stealth technologies, this malware has become the largest botnet on the Internet.
From where it spread to the victims friend, relatives, and colleagues.
Code Red
This virus was initially released on July 13, 2001.
However, it affected almost 359,000 computers by July 19, 2001.
The worm uses a known buffer overflow vulnerability contained in the Idq.dll file.
This virus had an ability to spread itself through email messages.
According to the creator, the virus had been named after an exotic dancer from Florida.
This virus was first identified in the year 2010 and targets mostly industrial computer system.
Cryptolocker
Well, its a ransomware Trojan that spreads via email attachments.
It almost has been compromised nearly 500,000 computers and encrypted its files until the ransom amount has been paid.
The Klez Virus
Klez Virus makes its way to the digital world in late 2001.
On further testing, its found that the Klez Virus act as a normal virus.
However, this virus is capable to deactivate the antivirus system thats installed on victims computer.
Hackers later modified the Klez virus to make it more effective.
The virus was programmed to spam people with multiple e-mails that clog an inbox in short order.
Netsky Virus
Well, this virus spread itself through e-mails and Windows networks.
The Netsky virus spoofs e-mail addresses and propagates through a 22,016-byte file attachment.
After spreading itself, it can cause DoS (Denial of Service) attack.
After doing the attack system collapse while trying to handle the amount of internet traffic.
Leap-A
Leap-A which is also known as Oompa-A debuted in the year 2006.
Leap-A virus targeted Mac systems and it used the iChat instant messaging app to propagate across vulnerable Mac Computers.
The message that the virus sents contains a corrupted file that looks like a JPEG image.
That corrupted file destroyed many Mac Computer and this is where Leap-A became popular.
Well, this virus is a great example of Denial of Service attack.
The virus is powerful enough to bring down an entire system.
The virus was designed as an actual email that included the Pokemon character, Pikachu.
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