What is Ransomware
The ransomware is a general term that describes a malicious software family, which in turn starts the searching files such as images and documents to encrypt.
The malware completing his work goes to the next step to update the user with instructions for the payment of ransom and sending the key for decryption. Especially in companies and public organizations to encrypt files not only limited to the local system, but can be extended to all the files that are accessible to the corporate network.
Some versions ransomware type viruses argue that the payment of ransom to be done as a form of punishment by a government authority (usually, FBI or other similar services), other versions say that the payment of ransom is the only solution to decrypt the encrypted files. An additional behavior of most pests type ransomware is interception-recording-promotion of sensitive/confidential personal data, termination legitimate security programs (anti-virus, anti-spyware, etc.), Appearance of misleading surveys, contests, advertisements, etc. The first editions such viruses were created in Russia. Since then, they appear in almost all corners of the world.
There are several types of malicious ransomware programs that use different methods to coerce their victim’s users to pay the ransom. So far, we know three main editions:
Ransomware Encryption File. This version of ransomware is spreading online with the help of Trojans. Once you manage to penetrate and be installed on the target system, scans the system, identifies the most popular files and encrypts them. Mostly, files that are more at risk to be encrypted are photos, music videos, music files, videos, images, databases, etc. Then, the ransomware starts showing large warning message informing the user victim that the only way to decrypt the files is by paying the fine. And unfortunately, if the encrypted data is almost virtually impossible to be able to decrypt differently.
Ransomware Blocking System. This type of ransomware blocks around the computer system and then asks the user victim to pay ransom for the release of access. Usually appears as a warning of some alleged governmental authority/agency, e.g., FBI. Indeed, to become more convincing, once installed, the system scans the scenes for illegal files, such as pornographic or pirated material. Once identified, the system blocks and analog displays misleading warning message. In this case, the user is informed that a victim then scans detected illegal files on his computer. And to further enhancing the coercive pressure, the virus asks the user victim to pay the fine. Otherwise, it will end up in the courts and prison.
What can happen from ransomware virus
- The ransomware viruses can encrypt sensitive personal data of the user victim, e.g., Business documents, videos, photos, and other types of files. Once we complete the encryption display message calling for a sum as ransom to decrypt the data and the user victim to regain access.
- These viruses can delete predefined documents, multimedia, and other types of important files. They can also delete important system components or major software parts.
- The ransomware viruses can steal-record-promote in third important personal data, e.g., Login names, passwords, important personal documents, identity, and many other kinds of sensitive personal data. These data are then sent online to remote hosts.
- If your computer is infected with ransomware virus, will soon find significant ‘freezes’ and crashes, and ultimately your computer system will become useless. Also, you will soon see significant delays in the system speeds, etc.
- The ransomware and crypto-type viruses can disable and block type many antivirus security software, anti-spyware, etc. Then, they can act undisturbed!
- Unfortunately, there is no capability to uninstall a ransomware virus type manually. Indeed, this kind of virus to complicate even more the installed security software to detect and remove, trying in various ways to hide their activities, help files, and everything else associated with them.
We should emphasize that ransomware type viruses are very dangerous and can create many problems both for the proper functioning of the system and the security of personal data of the user victim. So, to have a good first impression, these viruses can block access to critical data, steal-record-promote to others sensitive/confidential personal data, even destroy the system completely!
If your computer is infected with ransomware virus type, we recommend that you DO NOT pay the ransom will be requested. Not only is not guaranteed to regain access to your locked files, but also to share sensitive personal data to hackers, and, generally speaking, the payment of a ransom equivalent to financial support of cyber-crime.
How do ransomware threats spread?
Most ransomware viruses manage to infiltrate computer systems without the knowledge and approval of the victim user. They can attack virtually all operating systems, including Windows, Mac OS X, Android, etc. There are two ways through which these cyber parasites can infiltrate your computer.
Trojan Horse and other malware. Most ransomware type viruses manage and spread online with the help of Trojans. The Trojan.Lockscreen are among the most popular Trojans used in web deployment of ransomware. Can penetrate without being perceived by the user victim, as usually contained in files that appear as attachments to various malicious emails foisted as alleged emails from trusted sources, such as, e.g., Amazon, eBay, financial institutions, etc. Once the user victim downloaded such an attachment to the computer, the relevant trojan installed in parallel.
False and misleading pop-up notifications. Much of ransomware virus type succeeds and spread online via false and misleading pop-up alerts that may appear equally illegal and trusted sites. Usually, this kind of messages has alleged reports of significant upgrades or programs supposedly free system scans that promise that they can detect and completely remove any cyber threat can penetrate and infect your computer. Of course, this is not true. Such messages are clearly misleading and potentially dangerous, involving faithful imitation reliable names and logos, and the way it can fool even experienced users by convincing them to Click!
The most typical examples of dangerous Ransomware virus type
The virus Cryptolocker is a highly dangerous ransomware type virus which encrypts important files on the target system and then pushes user-victim to make a purchase the decryption key (see. Decryption key) as ransom to decrypt and breakout files of. How does he do; Once infiltrated and activated in the target system, system scans and identifies the most important data stored there. Then, make encrypting and block access to them. Usually, looking for important files, e.g., Business documents, photos, video files, etc.. The most important files, the greater the chances of the user victim accept to pay the ransom, let alone when they believe that the data will be lost forever! The only way to save the files are user-victim to pay the ransom asks Virus Cryptolocker.
The FBI virus is still a prime example of dangerous ransomware virus type. He blocked the data, but the entire system. Then, it displays a warning message. Typically, this message warning the user victim that has made illegal online activities, e.g., Visiting illegal websites pornographic or pirated content. Based on this indictment, the message blackmailing the victim user to make a payment allegedly threatening fines that would otherwise be in danger of imprisonment. Upon completion of payment, the FBI virus unblocks the system. However, this does not mean that it has not left in different parts of hidden malicious files system.
Your browser has been blocked. It is a typical example of ransomware virus-blocking browser. It can be classified as scareware. Blocks the browser and then asks the user-victim to make a penalty payment because visited illegal websites pornographic or pirated content. He is one of the less aggressive types ransomware virus as it can only be removed by uninstalling the infected web browser.
Breakout computer and remove the ransomware virus
If your computer is infected with ransomware virus type, we recommend you DO NOT pay the ransom will be requested. Many people have lost their money in this way. Also, do not believe that these messages come from official authorities, simply because this is not true! These messages are nothing but misleading intimidating tools aimed at the highest possible collection ransom. Fortunately, most security programs (antivirus and anti-spyware) can detect and completely remove most ransomware type viruses. An ideal anti-spyware for each type ransomware virus can be found in the description of each ransomware separately and in section Software (Software).
If now blocked both the system and the installed anti-spyware, you can try some of the following options to remove the ransomware virus type:
If the proposed security program failed to remove the virus, you could alternatively follow the steps below:
- Restart your computer in Safe Mode (Safe Mode) and try again to install the anti-malware
- Restart your computer in Safe Mode with Command Prompt (Safe Mode with Command Prompt) and try to install the anti-malware of choice
- Reset System Settings
- Turn off the infected web browser
- Use SpyHunter Spyware
According to the IBM X-Force Threat Intelligence for the fourth quarter of 2015, the main source of ransomware attacks were uncorrected vulnerabilities, the drive-by infections and spam/phishing emails.