Computer Viruses

Top 5 Computer Viruses for Windows in 2020

Everyone who used PC for even once has heard of computer viruses and knows that viruses are not something good. In order to prevent computer viruses invading your PC, you should regularly check-up your computer`s health. Most of the times, virus invasions can be fixed by installing an antivirus program and scanning your files and system.

However, sometimes that is not going to be enough. In some cases, the result can be a total disaster. Then, your PC becomes unusable and you can only throw it away, and acquire another. Furthermore, these viruses can do even more damage by stealing your personal data. We are going to introduce you to the five most dangerous computer viruses as of 2020.

Computer Virus #1: Code Red

Code red is a computer virus that emerged in the early `00s. It was stumbled upon by eEye Digital Security employees. It was named after a drink called Code Red Mountain Drew that was consumed by two persons that discovered this virus. The modus operandi for this one is that it multiplies itself so much that eats all of the resources of the computer.

The virus itself is not leaving almost any trace on the hard disk, by running on the memory almost entirely. It has one of the most unforgettable symptoms. It is the message displayed behind the websites that are hacked by this virus. It shows a blank page with a sentence that says: “Hacked by Chinese”.

Computer Virus #2: .Adobe Ransomware

.Adobe Ransomware is a computer virus that is considered to be a spin-off of Dharma Ransomware, a data locker that appeared for the first time in late 2018. The virus enters the Windows Registry and launches and represses all the process in the whole of the operating system. It locks and encrypts files. Luckily, there is a solution to this virus, and you can find ransomware virus removal instructions on the internet.

This virus is targeting a lot of types of files and data:


  • Image Files
  • Video Files
  • Banking Credentials
  • Personal Data
  • Audio Files
  • Backup Files


Computer Virus #3: ILOVEYOU

Now, we are going to talk about a virus that is considered to be one of the most dangerous you can pick up while surfing on the internet. Its name is ILOVEYOU. As of today, this virus made serious damage to various systems all over the world. Recently, there was a research that had the task of finding out how much damage this virus caused. It was ten billion dollars. Yes, it was that high.

It is believed that around ten percent of all computers that are connected to the internet were infected by ILOVEYOU. There are two creators of this virus, two Filipino programmers, Onel de Guzman, and Reonel Ramones. Since there weren`t any laws against malware, the two of them were never charged for anything.

Computer Virus #4: Melissa

A virus named after an exotic dancer, Melissa, is probably one of the best-known computer viruses. It was created in 1999, by David Smith. Its first form was a Word document that was infected and put on a group called* UseNet. If a PC user clicks on it, the virus will enter his computer and start spreading through the computer.

Almost immediately, Melissa will mail itself to fifty contacts from the address book of the user, and by that, spread itself to other machines. The virus caused around 80 million dollars of damage. The creator, David Smith was arrested. He collaborated with the FBI in arresting other computer virus creators. Probably, the most famous was an arrest of the creator of Anna Kournikova virus.

Computer Virus #5: Zeus


Zeus is a computer virus that was identified in 2009. It is a trojan that attacks the operating system and performs numerous criminal acts, such as form grabbing and browser keylogging. Most of the machines that were infected by this one, were infected via phishing scams or drive-by downloads. Zeus attacked many computers of big banks and corporations, like Amazon, Cisco, etc.

There is no precise information about the damage it caused. Still, we have some information. In the United States, about 25% of all PC was infected by this virus, and the damage was around 1 million dollars. In eastern Europe, there was its operations resulted in 70 million dollars of damage. Around a hundred people were arrested in the process.

Cybersecurity: Are we there yet?

A good old-fashioned bank robbery isn’t very popular nowadays. The bad guys don’t even need guns. They commit crimes from home with the help of the computer. Welcome to the world of technology where everything can get hacked.

Thirty years ago people were not thinking of cybersecurity. There were no wireless computers, mobile banking apps, Facebook, the cryptocurrency market, etc. An interesting fact is that the first virus, named Brain, was released a few years after International business machines corporation had introduced the first personal computer. The virus was written by two brothers from Pakistan. At that time, people from the United States and the United Kingdom were so shocked that their computers had a virus that they were calling directly to Pakistan demanding to disinfect their machines.


Nowadays users have different kinds of antivirus software. No one keeps track of the number of computer viruses. The world would be a great place if a random Internet virus was the only cybersecurity problem. At this point, there are a lot of cyber dangers such as crypto jacking, data breaches, and ransomware attacks. Hackers can steal users’ passwords and go through personal information including photos, emails, chats on WhatsApp, and bank details. More than that, they can attack the government, hack Tesla cars and home automation system. There is no safe place.


Even large corporations such as Google, Facebook, FedEx, Amazon or Wikipedia experience cyber attacks. Despite the amount of financial and human resources, they still can’t fully protect themselves. For instance, Sony’s PlayStation Network was attacked in 2011. The company was going through hell – the team of hackers stole the personal data of 77 million users. The list of data included customers’ names, passwords, credit cards numbers, and expiration dates. Needless to say, the users’ bank accounts had been illegally used. To appease disappointed customers the company paid compensation of 15 million dollars in total. Plus, they were in charge of refunding money that was stolen from all their customers. The experts call it the world’s largest cyber attack. Another important fact is that it was possible to avoid this incident. Sony decided to ignore a well-known network vulnerability and paid the price for it.


Hackers can also be different. Not everyone will go to attack government or political parties. Some hackers target celebrities and their Instagram profiles by using a flaw in the Instagram security system. In 2016, Selena Gomez’s Instagram was hacked. Unknown posted nude photos of Justin Bieber from her profile. The American singer had 125 million followers at that time.


Everyone can become a victim of a cyber attack. History shows that the consequences can be terrible. That’s why it is so important to spread the message about cybersecurity and what to do in order to avoid getting hacked. Hackers are evolving at the same speed as technology, so users should become more careful both online and offline. No one knows what can be worse – showing your nude pictures to the millions of people or pay off 15 million dollar debt.

If you want to learn more about cybersecurity and how to protect yourself, check out the infographic below, according to ServerMania: