RansomwareRemoval Guide

Remove MCNB Virus (.MCNB Files Ransomware) – MCNB Ransomware

MCNB – Ransomware

The MCNB mean a ransomware-type infection. The infection comes from the MCNB ransomware family. MCNB was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are unable to use them. MCNB adds the “.MCNB” extension for each file encrypted by it. For example, the file “myphoto.jpg“, once encrypted by MCNB, will be renamed into “myphoto.jpg.MCNB“. As quickly as the encryption is completed, MCNB places a special text file into every folder containing the encrypted data.

The message given by MCNB text file asking for the ransom is absolutely the same as the statements given by other ransomware virus representatives belonging to the MCNB clan. It literally discusses that the information is encrypted and that the only way to restore it is to use a an unique decryption key. Unfortunately, this is absolutely true. The sort of cryptography mechanism applied by MCNB is still not correctly examined. Still, it is absolutely certain that each victim may be given the specific decryption key, which is absolutely distinct. It is difficult to restore the files without the key available.

Another trick of MCNB is that the victims cannot gain access to the key. The key is stored on a particular server run by the frauds connected with MCNB ransomware. To get the key and recover the important information people need to pay the ransom.

Nonetheless, regardless of the requested amount, people need to stay away from paying the virus. Cyber frauds are not fair, so they tend to entirely disregard what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom generally does not provide any positive outcome and people simply lose their money for absolutely nothing.

We highly recommend that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack MCNB ransomware and to recover the information data totally free. Thus, the only best decision is to recover the lost data from the available backup.

Virus Summary

NameMCNB Ransomware
File Extension.MCNB
TypeRansomware
FamilyMCNB
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special MCNB extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the internet is now overwhelmed with threats that look comparable to MCNB ransomware. Destructive programs of such kind are normally elaborated to encrypt crucial information and to set forth the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to generate the special decryption key for information decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is just not feasible. The only method to avoid the loss of your essential data is to regularly create backups of your important information.

Keep in mind that even if you create such backups, they should be placed into a special storage utility not connect to your main PC. You may use the USB Memory Stick or external hard disk for this purpose, or refer to the help of the cloud storage. If you save your backup files on your common system they may be encrypted in addition to other files, so it’s definitely not a good storage place.

How did ransomware infect my system?

There are several methods used by online frauds to distribute MCNB ransomware. Although it doubts how exactly MCNB injects your system, there are some leaks through which it may infiltrate the system:

  • integration with third-party apps, especially freeware;
  • spam emails from unknown senders;
  • sites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Frequently MCNB virus may be presented as some legitimate software application, for instance, in the pop-ups instructing users to execute some important software application updates. This is the typical trick used by online scams to persuade people into downloading and installing MCNB infection manually, by methods of their direct participation in the installation process.

In addition, the criminals may describe numerous email spam tactics to inject malicious codes into PC. So, they may describe to sending unsolicited spam emails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some photos, files, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may badly harm the PC. Fictitious Adobe Flash Player upgrade alerts may result in MCNB virus injection. As for the cracked applications, these illegally downloaded programs may likewise include malicious codes resulting in MCNB secret installation. Lastly, injection of MCNB may take place by methods of Trojans that covertly get injected into the system and install harmful tools without the user’s consent.

Is there any method to prevent the injection of MCNB ransom virus?

Although there is no 100% guarantee to avoid your PC from getting infected, there are some pieces of recommendations we want to share with with you. First of all, be very cautious when you browse the web and specifically while downloading free programs. Stay away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Bear in mind that some freeware installers may contain other unwanted utilities in the bundle, so they may be malicious. Ensure that your current antivirus and your entire operating system is always duly updated.

Of course, downloading pirated software is prohibited and may result in vital damage to be made for your system. For this reason, stay away from downloading cracked software. You are likewise highly advised to reconsider your existing security software and possibly switch to another security solution that can render far better services of defending your system.

Below please find the quotation from the MCNB text file:

注意!
_____

我的电脑出了什么问题?
您的一些重要文件被我加密或者删除了。
文档、图片、压缩包、音频、视频、可执行文件文件等,所有类型的文件都被加密或删除了,因此不能打开。
这个一般的文件损坏有着根本上的区别。您大可在网上搜索恢复文件的方法。不过,我敢保证,如果您不按照我的方法,就算老天爷来了也不可能恢复这些文件。

有没有恢复这些文件的方法?
当然有。您的文件只有通过我的方法才能恢复。我以人格担保,我的恢复方法是绝对有效的。
但是这是需要付费的。
请点击 按钮以访问 Minecraft 官方网站,您须在此网站上购买一份 Minecraft Java Editon 并截图发送给我,我方可恢复您的文件。
另外,您需要在购买并安装 Minecraft 之前卸载您的迷你世界(包括移动端上的),并且在您所使用的所有社交平台上删除您发表的有关迷你世界的言论,否则您将永远无法恢复您的文件。

我的电子邮箱地址:
helpmanager@airmail.cc

Screenshot of files with “.MCNB” extension added by the ransomware:
MCNB Ransomware - encrypt files with .MCNB extension

Use GridinSoft Anti-Malware to remove MCNB ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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