There is nothing better than use a computer that has all the optimal conditions so that we can work, or to entertain ourselves freely. But, this tranquility is found constantly threatened by malicious code.
These attacks are the most powerful threats so far. Its way of propagation, types of infection and the control they can take over our computer assets, they are the ones that turn malicious code into our worst nightmare.
Know how to face and attack them, is the best strategy to deal with these threats. For this reason, today we will show you everything you need to know about these and how to avoid them.
What is malicious code and what is it used for in computing?
malicious codes are scripts designed with the intention of taking advantage of errors or vulnerabilities in a computer, opening gaps for information theft, forming backdoors, and weaknesses in system security. Kaspersky Lab highlights that a simple antivirus you cannot fully control the behavior of malicious code.
Since these are scripts that hijack vulnerabilities, to compromise the health of a team, resulting in a rapid system infection. Antivirus can only fully protect us from malware, since it is a milder infection. The difference between malware and malicious codeis that the latter can even infect the virus detection algorithm of the antimalware, leaving it totally inoperative.
This self-executing software can be presented in different ways, the main and most common are:
- applet Javanese
- controls ActiveX
- Contents Incorporated
- plugins
- Idioms script
- in languages programming
- Emails
The malicious code it’s such a powerful infectionthat even the US Government Responsibility office warns in its communications that this type of attack It is a threat even to your internal security..
Types of malicious codes What are all that exist?
malicious codes They are one of the most aggressive infections that can exist. If we want to keep our computer protected, the most logical thing to do is to know what are the different presentations of this code.
In order to establish effective countermeasures:
Virus
The virus are those malicious codeswhose objective is to upset the algorithmic process of a computer, allowing it to open the way, to critical and important sites of the system, mostly resides in RAM. are considered highly harmful and can severely affect all computer assets stored on a computer. The loss of confidentiality can be high when we are in the presence of this malicious code.
worms
Its main feature is its fast cloningIn addition, it does not need any human intervention to meet the objective of infecting all files, information theft, and affect the operation of a computer. These are known as Worms, and their main lodging point They are RAM memories turning them into their center of contamination. On the other hand also can affect the stability of a network.
trojans
They are called like this, due to their first-hand display of harmless software, whose objective is to get into the computer, crash the system, and carry out a massive theft of information. The main data that this infection seeks to obtain from a system, are all credentials, including social media.
Keyloggers
The keyloggers are the keyloggers. These viruses have been dedicated since their creation, in the record of each typing by means of the keyboard. Its threat level is not very high since, even with our infected system, we can work with minimal loss of information. The purpose of sending this malicious code, is to generate data containing all writesof passwords, users and private information, without the owner noticing his presence.
Spyware
The Spyware They are the malicious codes that have the greatest function and development on a PC. Just contaminating it They can extract important data such as the passwords of our accounts banking.
Likewise, they can present us massively the publicitary advertisements, and deteriorate system performance. On many occasions, this infection gives way to others, which is called in Spanish as a back door, not only because it diverts information, but also because it allows the entry of computer viruses and worms.
malicious bots
Your behavior it’s like a trojanbut with the difference that it is installed from a vulnerability, and waits for the programmer’s orders to steal information and degrade system performance. Reason why it is called as the BackDoors Trojanor back door.
macro viruses
This infection enter through Word or Excel files apparently normal. They hide in the macros of the files that we share, or download from the Internet. Then they auto execute and propagate. quickly in all our documents.
The purpose of this malicious code, is to extract as much information as possible, without leaving a high record of the operation, affecting in the same way our saved information, through the alteration of content or the deletion of files. All the activities you perform on a computer, they depend on the orders of their creator.
What are the main contagion mechanisms of malicious code?
There are many ways and mechanisms used by attackers to infect systems and steal information. The most common infections come from file downloads on the Internet, mostly when they are pirated packages. All Internet files that come from fraudulent websites, are infected by malicious code, mostly self-executing.
This is the little detail that no one notices when buying pirated digital products. Other contagion mechanisms, is the use of P2P networks, including packages with gifts. Like downloads from fraudulent sites, they are infected with malicious code, prepared to steal our information and disable our computer. As for offline infections, there are infections through external memories and devices.
By simply inserting the disk into the computer, the malicious code can launch itself, and start performing its scheduled tasks. without us noticing its existence. Just like if you go out to a dangerous place you take care of your belongings, you should also do it when you go online, since it is full of people who live from the computer attack. Even when we are in our social networks or email account, we must avoid downloading files sent to us by chat, from accounts we do not identify.
Tips to protect your operating system from malicious codes and programs
To avoid being a victim of cyber attack, we must do some key activities that will help us to be more protected. The first thing is to verify that all our programs and operating systems are in their most recent version, avoiding the passage of infections by vulnerabilities. Also, we must have a good antimalware. The use of antivirus in its free mode is not recommended, since these, being in a test mode, ignore some threats, and allow free access to infection.
For this reason, the use of their paid versions is recommended, since they offer better protection in every way. Regarding Internet downloads, we must avoid extracting files that are found on websites that are not trusted. They deceive us by offering us content illegally without any payment, infecting us without us being able to perceive it.
On the other hand, external storage devices, We should not insert them into our PC without first verifying their origin, since it is the most direct way to implant an infection in the systems. There are many other ways to protect ourselves against attacks and infections, however, follow these tips that we mentionedis the fundamental key to avoid being contaminated and our information is disclosed.
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