Category Archives: virus

Understanding viruses, how to avoid them? Our tips will help you avoid getting having it.

What is a spyware/spyware?

In the malware industry, there are several.

Indeed, there may be categories for almost any act of cyber malice. Among these malwares, we have spywares still called spyware. Malware intended to violate the privacy of data in a computer terminal.

In terms of use, spyware is wreaking more and more havoc in a context where computer warfare is raging. These are software that threatens the devices and the personality of the data they contain.

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Spyware is defined as a subcategory of malware. Computer science usually use it to make machines. These can be computers, smartphones or tablets. Their usefulness revolves around the theft of information. As a result, the use of this type of application is done as discreetly as possible so that the targeted user cannot see it for as long as possible. During the time it is installed on the terminal, it simply continues to siphon data for the benefit of cyber criminals who will know how to use it as they please.

In practical ways, it should be meant that there are several types of spyware. And compared to specificity, these malware presents a lot of danger to users:

– Information thieves: these kinds of computer programs used to first scan the contents of the targeted terminal and collect for the benefit of hackers, all the information that can be exploited. In other words, data that can either initiate new computer attacks or be sold on the Darkweb. These include browsing his or her browsing records, business documents, logs, addresses, emails, photos or passwords.

– Keyloggers or keystroke recorders: This malware is used to record everything they type on their keyboard without the user's knowledge. Whether the keyboard is physical or virtual. In other words in it served to spy on keystrokes on computers as well as on smartphones and tablets. As a result, the cybercriminal can use it to gain access to notes, messages, web searches, passwords. In short, everything that is seized. In addition, there are versions capable of contextualising and all texts, clearly what content for which platform for which application. A very useful tool when you want to steal login credentials.

– Trojans: These are malware that is also categorized into the larger spyware package. It has the functionality of modifying web pages and carrying out transactions is visible during financial transactions (for bank Trojans) or action. For example, in the case of bank Trojans, malware can change the content of a transaction or add other payments to the initial transaction. They also allow the recovery of bank identifiers. Data that can be easily monetized on the black market of personal or financial data. For this purpose it is very rare for data thieves, i.e. bank Trojan horse operators, to exploit the financial data of stealing themselves.

– Password thieves: software that exploits the memory of computers or smartphones to collect the data entered, especially passwords and other login credentials. For example, they can use navigation cookies.

To protect against spyware, it all starts with good digital hygiene. Indeed, the majority of people who get infected by these software are infected through the phishing phishing method. A very simple method that for years has produced an undeniable result in the field of cybercrime. It's about trapping the user by directing them to a website designed for this purpose. And to do nothing more. Hackers design messages sent through traditional messaging or email, messages that always invite the user to click on a link. In the general case, these are messages that relate to a well-known topic that may be of interest to the recipient. It can be a promotion, an invitation, or an imaginary boss. The user when not vigilant clicks on the link. From the moment it accesses the website, cyber criminals have the option of installing malware on the terminal. The technique seems simplistic, but still works. According to the computer security specialist, more than half of the computer attacks started with a phishing message. Enough to attract the attention of the average user. In other words, the first protection against malware, and not click on a link that you receive by message when the recipient is not someone trusted or if this is not necessary in a particular setting. Users are advised to access the website directly instead of using the links it receives per message.

The second advice, and the use of protective software. Today there are a variety of programs to protect computer terminals. They are regularly updated to the evolution of malware, allowing you to protect yourself when the intrusion is done in a rather complex way.

The third tip is to check your Internet data consumption. Indeed, the consumption of the Internet is important for the operation of spyware. If you feel that your usage is far too high compared to using your applications, feel free to perform a thorough scan of your software and operating system. A malicious program may take advantage of the situation to exfiltrate data.

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4 misconceptions about ransomware

Since 2019, ransomware attacks have become a daily newspaper in the field of computer science.

It is almost impossible to spend a full month without a cyberattack based on this malware being reported somewhere. In other words, ransom software is raging right now and unfortunately everyone is affected.

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Whether it is hospitals, industries, small and medium-sized enterprises, large companies, local authorities, all have tasted this bitter fruit. In its recent report (October 2020) Veritas Technologies reported that ransomware-based attacks have increased by 50% compared to last year. This explosion of computer attacks with ransomware has not diminished the conventional wisdom on the issue. Here are 4 that remain the most common

1 – Giving in to cybercriminal blackmail is preferable

With the digital revolution, almost all companies are doing their business on managing several types of computer data. And when this computer data is unavailable for any reason, the company has a hard time functioning properly. In some cases, they can no longer function at all. It is on this fact that pirates merge to initiate their attacks. By preventing companies from accessing giving them away, they are putting pressure on them by demanding a ransom. So far, some people believe it is better to pay the money demanded by cyber criminals. Because basically, the payment of the ransom often presents itself as less expensive than updating the system on its own. Unfortunately, this is a lot of the way the company opts for this alternative. In a study in June 2020, Veritas Technologies reported that 29% of respondents believe that the best alternative is to pay the ransom. Unfortunately, practice has shown that this is not that simple. Indeed, several companies have never been able to recover giving them even after paying the ransom. The computer security company Sophos, one even explained that paying the ransom and you are likely to increase the costs of restoring the attacked system by multiplying them in half. In addition, paying the ransom encourages cyber criminals to continue their activities. This exposes the same company again.

2 – Only people with access to sensitive data are targeted by hackers

Hackers target everyone. Especially the simple employee. All information, as insignificant as you might think, is important to the cybercriminal. An email address, password, bank account numbers, etc. In other words, regardless of the status of the individual. It doesn't matter what business you're in. Also, to think that only the high people placed are the most targeted is a misconception. It is as false as the idea that large companies are generally targeted by ransomware.

3 – Employees can't help fight ransomware

If security experts are unanimous on one fact, it is that the weak link in cybersecurity is the human being. Despite all the tools that hacker has today, it will always prioritize targeting a particular user. "Whether it's viruses, spam or ransomware, users remain the preferred targets of hackers. However, management and employees (untrained and equipped with the right tools) are better able to detect threats and bring up information. Where some security systems will detect threats that once in the company environment, employees will be able to prevent as soon as a threat is identified and participate in strengthening existing protections. Veritas Technologies report

4 – A basic backup is enough to counter the ransomwares

Jean Pierre Boushira, VP Of Southern Europe at Veritas Technologies, replies: "It's a fact, ransomware is a very serious threat and hackers are blithely taking advantage of the climate of insecurity to get their act together. It is therefore essential that each of us know how they work and how to protect ourselves from them at both an individual and a corporate level. Beyond establishing appropriate protection systems, companies need to keep in mind that an effective backup strategy remains their only lifeline once the ransomware has been able to infiltrate the system. Many players associate this principle with simply having a backup stored at a different point from the infrastructure, but to be truly relevant, the backup system must be able to generate an "off-site" copy of the files to prevent malicious encryption attempts. ».

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Top 5 Most Dangerous Botnets of the Past Decade

The past decade has tested the security of information systems around the world.

There has been an exceptional increase in software Malicious. As a result, experts tend to describe decade of the decade of malware. In this article we let's introduce you to the super botnets of the decade.

1- The ''3ve''

It is considered to be the most sophisticated of the zombies exclusively dedicated to click fraud. It would have worked from 2013 until 2018. Its dismantling was the result of international cooperation authorities cybercrime, not to mention the help of some firms such as Google and WhiteOps, a cybersecurity company. This botnet worked on the based on several malicious scripts and some fraud programs in the click, run on multiple devices, by malware like Kovter and Methbot. 3ve has a moment involved over 1.5 million terminals and 1,900 servers that clicked on advertisements run on tens of thousands of fake websites created by the latter, using robots designed specifically for this purpose.

2- Bamital

Bamital is a network of Zombies advertising that shot 5 years without interruption (2009 -2013). Collaboration between Microsoft and Symantec brought it to an end in 2013. This malware inserted malicious links and some of the content in the search results, with a view to redirect users whose terminals have been infected, to platforms or these deniers will attempt to unknowingly download malware. More than 1.8 million personal computers were Affected.

3- Andromeda / Gamarue

This malware was identified in 2011 for the very first time. Its functionality consists of spreading other malware and spam known as Malware-as-a-Service (MaaS). ». This term refers to a set of operations that involves cornering the user with a massive shipment of spam, with the aim of infecting his terminal with the very strain of computer virus. Once the terminal is infected, hackers will use it to infect other computers and computer tools, to extend and keep the program active. This approach is interesting for hackers because it is part of a fairly lucrative cybercrime trend. Providing installation space via botnets allows you to perform several actions that can increase the control of cybercriminals over a multitude of information systems. What made the Andromèda program so popular is that its source code was leaked on the internet and then retrieved by several groups of hackers who modeled it as they wished according to their needs. Several attacks have been initiated through this program, the most impactful of which affects more than 2 million infected machines. It was closed by Europol in 2017.

4- Carna

Originally this computer program is not something malicious thing. Indeed, it will have been designed to carry out internet censuses. Its designer is still unknown until now. In the end it was more than 420,000 internet routers who would have been infected with this 2012. It simply brought together some of the statistics on the use of the Internet by internet users going directly through them. The problem is that this has been done without their consents, which gives a rather illicit twist to this program computer science. Routers who have been infected program was not adequately protected. In fact, they either used the default password or simply didn't use a password. In some cases, the password was very easy to guess. This approach used by another botnet in 2016, the famous Mirai

5- Bashlite

This botnet has been known by several denominations. Sometimes Lizkebab, Torlus, Qbot, Gafgyt or LizardStresser. It is a program that has been developed with the aim of infecting domestic internet routers, moderately secure Linux servers and connected devices. Hackers typically use it to initiate DDoS-type attacks. It is the hacker group called Lizard Squad that is believed to have been behind this malware since 2014. In 2015, its code was leaked on the internet, allowing several other hackers to access it.

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Top 6 Most Dangerous Viruses in the World

Above all, it is essential to be able to distinguish the computer virus from other types of malware such as spyware and ransomware.

Indeed they are totally different and each has its own characteristics. Unlike spyware whose purpose is to be able to access the contents of a terminal for the purpose of stealing it, or to consult it without the prior consent of the real holder.

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The virus, for example, is a whole other level. It can change the content of a terminal or even delete it, destroy it. It can even damage the terminal in question. Some will be able to take control of the terminal, to perform tasks specific to the administrator's privileges.

In this article, we will give the 6 most dangerous viruses.

1- Polymorphic virus

It is a malicious software that is characterized by the difficulty in detecting it compared to others. Indeed, it is customary that anti-virus solutions are not not able to detect this type of computer virus. This is justified by the the fact that this malware has no fixed form and its mode operation is constantly changing. For example, when a file is infected with a polymorphic virus, the contents of the files that will be copied, will become differentiate from the contents of the original

2- Hijacker

It is one of the most commonly used viruses by hackers Computer. She has the main feature to change the requests of browser users in the to direct them to other web pages. Generally these pages are intended for the phishing. This type of virus is often linked to applications that to improve the speeds of the internet connection or to make it even better faster search via the web. It is also generally affiliated extensions Browsers. We can easily get rid of him. indeed it is enough all simply uninstall the software to which affiliate and all files associated with it.

3- Multiparty virus

It falls into the category of the most difficult viruses to destroy. And at the functionality to change the way it spreads through the files, because Unlike the others, it's not just about infected files. The effect it has on terminals vary according to the latter and the objective by his publisher. In addition, it is able to remove extensions of disc controllers' files of the files themselves on the Device Managers. In particular, it also has the capacity to carry out formatting a hard drive.

4- The resident virus

This virus is known for its destructive effect on the terminals it infects. It is one of the most dangerous viruses that exist. Its modus operandi is very simple. It hides in the RAMS of computers. once these terminals are launched at the start-up, it activates. Since it is a fairly large virus. Once installed on the terminal it automatically gets rid of files that could prevent it from having space.

5- File infector

As for this virus, it hides behind the most more used by the user. So that every time the user tries to launch the file, the virus runs automatically. However, it is recalled that it relates much more to the file Excel or Word format. a version of this virus called Melissa is a true celebrity. the latter has managed to infect several institutions around the world. To get rid of him, it is necessary to have a antivirus.

6- FAT Virus

In reference to its name, this computer virus essentially attacks the FATS allocation system. it has virtually the same features as most computer viruses, i.e. spreading and infecting several types of terminals. when it is not quickly processed on a computer system, it can damage the computer system and render it unusable.

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Where does the name of viruses come from?

In practice, it is very often found that computer viruses have quite specific names.

Indeed, you've probably heard of "WannaCry," "Iloveyou" and "Shadow Hammer." But where all these denominations can really come from. Is there a particular code to this where it is simply an inspiration from here and elsewhere to christen these computer programs?

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Like what if you were waiting for "poisonous bear," "shadow hammer," "want to cry" and "bleeding heart," it is certain that you will not know what We're talking. When in reality it is simply translations of denominations given to the most terrible viruses the computer world has ever over the past 20 years.only that they are originally in English. For example for the Venomous Bear virus (bear a computer program designed by hackers plural of Russe. In addition there is another that has infected nearly 1 million terminals Asus, we are talking about Shadow Hammer. Or if you want let's talk about the world's most famous wannacry ransomware program (want to cry).

Unlike the process of validating emojis, it is there are no institutions international authorities responsible for ensuring the formulation of names of computer viruses. generally as we see in practice, this burden and generally left to the care of computer security researchers who make the discoveries of these Programs. and for that every expert to his technique to mention the program. We often see in some cases where certain programs computer technology is denoted according to algorithms that merge automatically on words in their code. Choices for names computer viruses will only occur when this program turns out to be more sophisticated or even more devastating. Since there are no official rules constrains computer security researchers in the name of these programs, they can then give it to heart joy.

However, there is no denying that there has already been a process of standardizing the names given to computer viruses. Indeed this project dates back 30 years unfortunately it failed. This attempt was proposed in 1991 through the CARO (for Computer Antivirus Research Organization). It was proposed through this guide to compose the name of the viruses using the name of the platform targeted by the latter and the type of family to which it belongs. However this strategy could not be done with the arrival of name that lengthens and too often became uncomfortable to pronunciation. "Among the implicit rules that researchers follow and which stem from CARO, remain the prohibition of using the name of a person, a place, a brand or the group of hackers to which the attack is attributed, so as not to advertise them. Bogdan Botezatu, Director of Threat Research and Reporting at Bitdefender, told BFM Tech. "It is also forbidden to use a vulgar, obscene or offensive word. He added.

In some cases, at least computer-only external events may influence the naming of viruses. This was the case, for example, of "Michelangelo, the first virus to receive media coverage in 1991, was named in this way because the researcher noticed that the date of the attack was called the date of Michelangelo's birth. explains David Emm, a security researcher at Kaspersky.

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