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We know that viruses are software whose main objective is to affect the activities or procedures carried out by a computing device, either a computer or a mobile device. They can do this by invading the space and authority of the device user, enter the computer and alter its operation without the user being able to prevent it.
What is a virus?
It is a malicious system that can take the place of software that is essential for the computer., leaving similar systems infected with adulterated codes. In the worst cases tend to intentionally destroy all data that is stored on our device, some types are not that serious and only cause discomfort in computer use.
Viruses are malicious systems that only serve to infect the rest of the files that are inside our computer, they can also modify and even damage it, embedding codes where they manage to spread, thus acting like a biological virus.
The viruses that spread through software, managing to execute the malicious program without the user noticing. On the other hand, the virus continues to act on the device's RAM, so that, even if it has finished running, continues running.
Later, the virus starts to control the operating system, executable files, until it finally manages to record itself on the hard drive.
Simultaneously, they act like some kind of flu, that is why they are called by the name of “virus”. The first to come out was one that came close to an IBM series device 360, it was created in 1972 and emitted a constant message on the screen that said “I am a creeper, catch Me If You Can”. Later an antivirus program was created to solve this problem, what got the name Reaper.
However, at that time the term was not yet used “virus”, did not arise until 1984, with a group of game developers who were in charge of eliminating an adversary program that was in charge of occupying all the space of the RAM memory. . . Since then these malicious systems have spread widely, both in social networks, like floppy disks, and even in emails.
At the moment, viruses have started infecting all kinds of systems, from mobile device systems, tablets, computers, laptops, among others. What's more, are usually created for specific operating systems, However, in recent years there have been some cases in which Cross-platform viruses have been seen..
What operating systems are usually infected with viruses?
The operating systems that most frequently present this type of incident are Windows and Android, given its wide popularity. Fortunately, there are numerous antivirus programs that help protect your computers, However, it is worth taking steps to avoid an infection that can damage both your mobile phone and your computer.
It is also recommended do not download or install any program from an unofficial network, since otherwise we do not know where it comes from. Nor should we open links from suspicious emails, it is preferable to use pop-up blockers that appear in the browser, and clear the browser history cache.
How can devices be infected?
Through social networks, fake websites, as well as any device, either USB, CD, among others, that have been previously infected. Trusted websites can also get infected, what's more usually appear in spam, namely, in emails we receive for no apparent reason.
Therefore, we must be very careful and have an excellent antivirus that warns us of any suspicious activity, or any download that may cause our computer to end up infected.
It should be noted that these viruses can reduce the space on our disk, make the system much slower and heavier and corrupt some files relevant to the proper functioning of our equipment. They can also start downloading junk files and erase the data stored on the disk. They can even turn the computer on and off continuously.
Where can viruses be downloaded?
Few people dare to do it intentionally, some do it just to find out how they work, as a way of experimenting, so there are numerous sites where these malware are found, suitable for any type of investigation.
All you need to know is which virus you want to download, Recyclers, for example, are the most common, these create a shortcut to any type of program and then remove the original source. Mainly they are disseminated through a Pendrive, where all the files it contains are simultaneously converted to shortcuts and the original files are kept hidden.
The Trojan virus, on the other hand, steals information and alters the functioning of the hardware, wresting control of the equipment from the user.
It's important to put attention on, even if you want to intentionally download viruses, are live threats that can harm your computer, with which you must be very careful. You must run them through a virtual machine, not with add-ons, or use any network adapter.
In the following pages you can find databases of these viruses:
- Contagion malware dump
- The painting
- FreeTrojanBotnet
- Malshare
- AVCaesar from Maleare.lu
- Malware blacklist
- Malware database
- Crusher
- Malware abierto
- Virussign
- VirusShare
- VxVault
- Malcode
- MalwareDomainList
- Hosts file
- Malwareusrls
Each of them is free, but it is necessary to register to have access. Remember the recommendations that we have mentioned before, as the lifespan of your computer depends on it.
At the same time, there will be people who will wonder, Why download a virus intentionally? It is simple, These dangerous samples are necessary to know what kind of treatment they need. When compared to a biological virus, you will understand, since to achieve a cure, the disease must be thoroughly studied and numerous tests performed to be able to solve it.
