Scammers continue to use the Internet, and, given that not all users use an increased level of security, they manage to successfully commit their "atrocities."
Anti-virus systems are fiercely fighting viruses, and every database update allows you to increase the level of security, but unfortunately , some of them still cannot be determined immediately and users will learn about the infection of the system too late.
If you estimate the size of the databases of anti-virus systems, you can identify a huge number of different viruses that can be divided not only by type, but also by level of danger.
Anti-virus system specialists have identified the most dangerous Internet viruses, among which the following threats have been identified.
1. Industrial systems that automate production processes, in 2010, faced the most dangerous virus that violated the stability of their development. This virus is called Stuxnet, and it is still unknown who exactly is its developer.
Some experts have suggested that this virus is the development of the US and Israeli intelligence services, but this information has not been confirmed.
The virus spreads through various vulnerabilities in the Windows operating system, which at that time were not yet known by a specialist.
The Stuxnet virus has gained immense popularity due to the fact that it has infected not only software, but also the hardware of production equipment.
It is difficult to name the exact amount of losses that companies suffered because of this threat, but it is known that developments in the nuclear industry in Israel were "pushed back" a few years ago.
The Chinese invented in 2001 an interesting virus called Code Red. It spread through infected sites and instead showed the message "Hacked by the Chinese." Even the white house site suffered, and the total damage amounted to 2. 6 million dollars.
2. Zeus BotNet is on the second place in our list of the most dangerous Internet viruses. This virus was created back in 2007, but gained popularity only in 2009, when a group of scammers modified it and began to actively spread.
Thanks to this virus, attackers could intercept absolutely all entered information, and thereby gain access to various accounts, electronic wallets, Internet banking, etc.
Interception was performed at the level of the input means, that is, the program remembered each value that the user of the infected computer entered. According to official data, the fraudsters managed to infect more than 3. 5 million computers, among which were 2500 large companies located in 196 countries of the world.
The exact damage figure has not been established, but experts say it amounts to billions of dollars.
3. A virus called Conficker is also considered one of the most dangerous. The existence of this virus began in 2008, and in just a few months, hackers managed to spread it to several million computers. This virus is intended to obtain personal data required for authorization.
You may have seen files on your computer called autorun. inf, this is one of the signs that your system has been infected or infected to this day, with the Conficker virus.
A negative feature of this virus is its additional functionality, which blocks the ability to update Windows and use antivirus systems. In addition, Conficker is able to download additional viruses from the server.
4. An interesting name was received by the I Love you virus, which was distributed via e-mail, indicating the topic, which later became its name. Confessions of love were sent by fraudsters, and thanks to the file attached to the letter, they were able to infect the system of users.
In addition to the fact that the virus penetrated the system, the victim's mailbox was hacked, from which such messages were sent to all saved contacts. Given the scale of the spread of this virus, no one would be surprised that the total damage amounted to 15 billion dollars.
5. MyDoom, which was discovered in 2004, was recognized as the most dangerous virus. This threat was spread through e-mail, as well as through file sharing. The total damage caused by this virus is 38 billion dollars.
After it penetrated the system, the victim's computer was used for further distribution. It is also worth noting that all infected computers were used for DOS attacks.
There were cases when this virus could send up to several million emails per day, which naturally affected its distribution.In addition to the fact that attackers managed to carry out successful DOS attacks on popular resources, they reduced the overall speed of the global network by 10%.
It’s hard to believe, but it took only 10 seconds for the SQL Slammer virus to infect 75,000 computers, mostly in South Korea (by the end of the day it was already spreading all over the world). The main feature was its small size, which made it possible to transfer the program in one package.
Some hackers who make money by creating viruses, do not even think about how much negativity brings their activity into the lives of ordinary people. In order not to become a victim, try to use the full range of protection programs, as well as systematically update the software and anti-virus database.
The well-known Trojan program is not the most dangerous malware. In the history of the development of the Internet, and indeed computers, there have been many other cases where viruses were hacked and huge amounts of money were stolen.
Here are some more interesting stories:
In order to neutralize the program, another Reaper virus was created. He also automatically detected the presence of Creeper in the system and deleted it. We can say that it was from that moment that development began to protect the system from such utilities.
Within a few months after its creation, the Brain malware went beyond Pakistan and began to spread throughout the world. Only the Internet was then underdeveloped, so it’s impossible to compare it with the volumes of damaged systems today.
Melissa is included in the list of "The most dangerous viruses in the world". The quickly distributed utility was transmitted via Email, and its author was detained by the FBI. He spent 20 months behind bars and paid a $ 5,000 fine, although the total damage amounted to $ 600 million.
When attempts were made to launch files on infected PCs, they were simply deleted. The virus began work on Fridays on the 13th and removed programs from computers. In addition, when the system was started, after 30 minutes it reduced their performance by 5 times, and also showed a black triangle when the text screen was turned on.
Even though the virus didn’t bring serious problems, it became the progenitor of serious utilities. Macro viruses are capable not only of minor dirty tricks such as changing letters or correcting punctuation marks. With its help, it is quite possible to start formatting the hard drive or steal data from the system.
Win95 malware. CIH was unique in those years, as it spoiled not only the software component, but the hardware itself. Now there is no threat of infection, modern antiviruses have found an antidote from it .
The very dangerous virus Storm Worm managed to infect 10 million PCs in 2006. With it, the so-called botnet was created, where machines on the machine perform various actions.
A huge number of people have been affected by malware all over the world. Now viruses are being actively created for mobile devices. Not so long ago, we talked about a virus that performs calls on Android. He has many analogs, so smartphones and tablets also need anti-virus protection.
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