Most Dangerous Computer Viruses in History

Every aspect contains its both side, positive side and negative side.

Now focusing at negative and impact creating objects.

for example

   The creation of fast moving vehicles immersed us in a world full of dangers. 

   The use of nuclear energy turned out for mankind with the invention of a deadly bomb.

   And finally, The free flow of information(WEB- achievement of the twentieth century) ended with personal information becoming very vulnerable, jus bcoz of computer viruses.

  Of course now we are going to look at some most dangerous computer viruses.

Conficker 2008

Conficker (2008)

• Holds the title for the most dangerous computer worm

• Attacks the family of Microsoft Windows operating systems  ranging from Windows 2000 to Windows 7 and Windows Server 2008 R2.

• It has struck more than 12 million computers worldwide by now. 

• Its operating principle is based on finding vulnerable Windows sides associated with buffer overflows, and by using fake RPC-query executes a code, turning off the service and updating Windows departments, and blocking access to the sites of a large number of anti-virus manufacturers.

My Doom (2004)

• The fastest e-mail virus ever. 

• It did spread exponentially through an algorithm instructing any following computer to send even more spam than the previous one. 

• It modified the operating system by blocking access to the websites of anti-virus companies, news feeds, and various sections of the Microsoft website. 

• Its author(s) still remain unknown but the Linux OS adepts are suspected for doing this in attempt to undermine the authority and to show the vulnerability of the Windows operating system.

Nimda (2001)

• The name originates from the word «admin», just reversed. 

• Once the virus got on the computer, it instantly “subscribed” itself as an administrator. 

• Subsequently it cheated and broke the design of numerous websites and blocked access to hosts, IP-addresses, etc. 

• Moreover, it intruded computers in such an expertly and efficiently manner that 22 minutes after its creation, it became the widest-spread computer virus on the globe.

ILOVEYOU (2000)

• One of the trickiest computer malware ever. 

• Email users received a message entitled “I Love You” with an attachment. 

• Due to this sweet message, people downloaded the file and what they got was a script that started sending email messages in incredible numbers and deleted important PC files. 

• The results are still shocking nowadays: 10 percent of all existing computers on the globe at that moment were infected with it, thus, causing damages that amounted to $ 5,5 billion

Source: alltopbest.com