Get to know the 10 worst computer viruses in history

No user likes to face computer viruses because they can do a lot of damage to the system and cause a lot of trouble. Since the 1980s, computer viruses have caused a lot of damage to various fields. Although the cyber security situation has improved dramatically over time, we still cannot ignore the danger of viruses.

BingMag.com Get to know the 10 worst computer viruses in history

No user likes to face computer viruses because they can do a lot of damage to the system and cause a lot of trouble. Since the 1980s, computer viruses have caused a lot of damage to various fields. Although the cyber security situation has improved dramatically over time, we still cannot ignore the danger of viruses.

During these years, millions of different viruses have come and gone, but some of them have caused great damage. Have. Next, we discuss 10 of the worst computer viruses in history, some of which are considered malware.

Melissa - 1999

BingMag.com Get to know the 10 worst computer viruses in history

In 1999, computer viruses were still a relatively new concept. However, Melissa's virus went viral very quickly and caused a lot of trouble. It all started when a person named David Lee Smith used an AOL account to upload a file that, after downloading, took control of Microsoft Word. If the user was using Microsoft Outlook, the virus would be sent to the first 50 people in the user's contact list. But according to the FBI report, this virus has severely affected the email servers of companies and organizations, and because of this, many of these servers have been disabled. Also, this server was spread to such an extent that the Internet traffic was reduced to a certain extent. is in charge of cyber.

ILOVEYOU 2000

BingMag.com Get to know the 10 worst computer viruses in history

Many Romeos and Juliets fell victim to a virus in 2000 after clicking on what looked like a love letter in Microsoft Outlook. The ILOVEYOU virus (known at the time as the Love Bug) was technically a computer worm and started out as a perfectly normal email. The subject of the email was ILOVEYOU and inside the email was a text file called LOVE-LETTER-FOR-YOU.TXT.VBS.

After opening the text file, this computer worm started the process of damaging It started all kinds of files in the users' system. On the other hand, by breaking into Microsoft Outlook, he could send the desired email to other people. This computer worm entered millions of computers within a few days and caused widespread problems for users.

Code Red 2001

Code Red virus In 2001, it involved many servers and is known as one of the most severe attacks on various servers. After attacking these servers, the targeted sites will receive the message Welcome to http://www.worm.com! They were showing Hacked by Chinese.

Nimda 2001

BingMag.com Get to know the 10 worst computer viruses in history

The Nimda virus was released a few months after Code Red and the 9/11 attacks. Like ILOVEYOU and Code Red, this virus replicated itself very quickly. However, the special feature of Nimda was that it uses a variety of methods to reproduce. This virus targeted the Windows operating system and was even able to change system files and create new accounts in the operating system.

This virus infected millions of computers and many large companies had to disable their networks. Although an accurate estimate of the damage caused by this virus was never published, it caused a huge loss to users and companies.

Sobig - 2003

Although it is not possible to transmit a virus simply by sending an email, but opening the attached files sent by unknown people can put users in big trouble. Many users are familiar with this issue now, but things were different in 2003.

Sobig is another virus that infected millions of computers via email in 2003. The targeted emails had simple subjects and encouraged the user to open the attachment. After opening the attached file, the computer virus looked for the email addresses on the victim's computer to infect other users through the same method.

The important point of this virus was that several copies were provided that the F version was the worst of all. In August 2003, it announced that one out of every 17 emails sent in the world is related to this virus. Due to the high speed of the spread, many computer networks soon faced problems and billions of dollars in damages were caused.

Mydoom 2004

BingMag.com Get to know the 10 worst computer viruses in history

Like many computer viruses of the time, the Mydoom virus spread through email. was published, but the speed of its publication was so high that it is still considered a record holder in this field. Like other similar viruses, after attacking the victim's computer, this virus sent an email to other people, and if the attached file was opened, these people also became victims.

The spread of this virus was so great that It was said that the speed of the global Internet has decreased to some extent and even the speed of some sites has decreased by 8 to 10 percent. Meanwhile, we should mention the role of this virus in DDoS attacks on targets in America and South Korea.

Zeus 2007

Zeus, which is Also known as Zbot, it was a Trojan for Windows. These malwares mainly targeted people's financial and banking information. In 2007, this Trojan was noticed for stealing information from the US Department of Transportation. Like many viruses of that time, this Trojan was transmitted through e-mail or by downloading infected files. got the In fact, in 2010, the FBI arrested a group of criminals who managed to steal 70 million dollars from their victims using this Trojan.

Stuxnet 2010

BingMag.com Get to know the 10 worst computer viruses in history

Stuxnet virus in 2010 as the first virus developed to attack industrial infrastructure had found, it made a lot of noise. At that time, this virus was used to sabotage Natanz uranium enrichment facilities by using the security flaw in Windows shortcuts.

Iran's Minister of Communications announced in 2009 that the origin of this virus was not in Iran. It was through the Internet, but also through external memories that people from abroad brought to Iran and connected to the computers inside the nuclear facilities without proper investigation. According to published reports, this virus was the result of cooperation between the US National Security Agency and the 8200 unit of the Israeli army.

PoisonIvy 2011

PoisonIvy is an access Trojan. It was remote that allowed hackers to gain access to the victim's system. This Trojan was first discovered in 2005, but many years later in 2011, famous attacks were carried out using it. This trojan was used to steal sensitive information from chemical factories, government offices and other organizations.

This trojan was extremely dangerous due to the wide access it gave to hackers and therefore to steal passwords and other Personal information was also used.

WannaCry 2017

BingMag.com Get to know the 10 worst computer viruses in history

In 2017, files on Windows computers were encrypted using the WannaCry ransomware, and users had to pay hackers an amount in Bitcoin to open these files. Unfortunately, millions of computers were affected by this virus, and it is said that hackers gained billions of dollars in this way. Even today, WannaCry is still around, which shows the importance of protecting against ransomware.

Finally

As technology advances, the methods used by The side of cybercriminals is getting more complicated. Although we have mentioned only old viruses and malware in this list, such attacks are still taking place now, but the intensity and extent of these attacks have become much less. Therefore, you should always pay attention to the security of your system.

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