Remove B2DR Ransomware and Restore .b2fr Files

Remove B2DR Ransomware and Restore .b2fr Files

This article provides information on how to remove easily remove B2DR ransomware and how to restore .b2fr files without paying the ransom.

how to remove B2DR ransomware how to restore .b2fr files guide sensorstechforum

Another variant of B2DR ransomware has been spotted by security researchers. It is known to encrypt sensitive files with AES-256 cipher and append the extension to corrupted files. At the end of the attack, this newly discovered B2DR version drops a file called Readme.txt that contains ransom message left by hackers. In case that you fell victim to this threat be advised to avoid any negotiations with cyber criminals as they can only steal your money without providing you working decryption solution.

Threat Summary

TypeRansomware, Cryptovirus
Short DescriptionA data locker ransomware that modifies system settings and then utilizes sophisticated cihper algorithm to encrypt files stored on infected computers.
SymptomsImportant files cannot be accesed. They are marked with the extension .b2fr extension. Hackers require ransom payment for decryption solution.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by B2DR


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss B2DR.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

B2DR Ransomware – Distribution

One of the possible ways to infect your device with B2DR ransomware is to visit a compromised web page that is set to install it directly on your PC. As regards the links to such pages they can be pushed by various advertising campaigns, posted on social media channels or presented in email spam messages.

Another way to grant B2DR crypto virus access to your system is to open a file attached to an email message. Often bad actors embedded the ransomware payload on documents and spread them with email spam messages. Beware and practice caution before you decide to download and open files from the emails you receive even when they seem legitimate. It is a common practice of hackers to pose as representatives of well-known companies, services, websites and even governmental institutions in an attempt to trick you into infecting your PC with devastating infections like B2DR ransomware virus.

It is also possible to execute unnoticeably the ransomware payload during the installation process of a desired free third-party app as the infection code may be incorporated into the installer.

B2DR Ransomware – More about the Infection Process

Security researchers discovered another version of B2DR ransomware that is known to encrypt important files in order to extort a ransom payment from victims. It is associated with the specific extension pattern it uses to mark all corrupted files – By reaching the end of the article, you will know how to remove the threat and how to restore .b2fr files.

Before the encryption stage, B2DR crypto virus initiates several other actions in order to plague the system and ensure its persistent presence. The infection begins at the moment when its payload is executed on the system. With the help of the payload, the ransomware may create additional malicious files or drop ones from its command and control server.
Some of the files are likely to take over essential system processes in order to utilize their functionalities while remaining undetected by active security measures. And as long as files and objects associated with B2DR ransomware are present on your system, they may be used by hackers to install additional data stealer malware in order to obtain financial credentials and logins.

In order to fulfill one of the main stages of the attack which is ransom note display, B2DR (.b2fr) ransomware is believed to access Registry Editor and modify the settings of some of the keys located there. In the majority of cases threats of this kind affect Run and RunOnce registry sub-keys as they manage the automatic execution of all paramount system files on each system start. So by adding malicious values under these keys, B2DR could automatically open the file that contains its ransom note – Readme.txt. And the whole ransom message reads:

Your files were encrypted with AES-256.

Ask how to restore your files by email

Use only,,
Messages written from other mail services we can not get.

We always respond to messages. If there is no answer within 24 hours, then write us with another email service.


If within 24 hours you have not received a response, you need to follow the following instructions:

a) Download and install TOR browser:
b) From the TOR browser, follow the link: torbox3uiot6wchz.onion
c) Register your e-mail (Sign Up)
d) Write us on e-mail: ssananunak1987@torbox3uiot6wchz.onion
ATTENTION: e-mail (ssananunak1987@torbox3uiot6wchz.onion) accepts emails, only with e-mail registered in the TOR browser at torbox3uiot6wchz.onion


Any actions on your part over encrypted files can damage them. Be sure to make backups!


In the message write us this ID:
[redacted base64]

Apparently, hackers do not reveal the exact amount of the ransom but just urge victims to contact them on a provided email address. Supposedly they demand the payment to be in BTC. Be advised to avoid any negotiations with them and refrain from ransom transferring them money. There is no guarantee that their code is working properly and eventually they may not have an efficient decryption solution.

B2DR Ransomware – Data Encryption

Primarily, B2DR ransomware aims to encrypt important files so you can’t use them. For the purpose, it utilizes a built-in encryption module that implements AES-265 encoding to all target types of files. Supposedly the ransomware is designed to corrupt the following files:

  • Audio files
  • Video files
  • Document files
  • Image files
  • Backup files
  • Banking credentials, etc

After encryption files are marked with a sequence of two extensions that follow the pattern:

  • .[hacker contact email address].[malware extension]

This particular version of B2DR is known to append the extension to encrypted data. Unfortunately, you can’t access the information stored by this files until you apply any efficient data recovery solution. So keep reading and find some suggestions made in our guide.

Remove B2DR Ransomware and Restore .b2fr Files

There is no doubt that you should remove B2DR ransomware from the infected PC as soon as you detect it. Otherwise, it has the chance to spread its infection files across the whole network. For the manual removal of B2DR ransomware, you need to have a bit of technical experience and ability to recognize traits of malware files. Beware that ransomware has highly complex code that could plague not only your files but your whole system. So security researchers recommend the help of an advanced anti-malware tool for its complete removal. Such tool will keep your system protected against devastating threats like B2DR and other kinds of malware that endanger your online security.

After you remove the ransomware make sure to check the “Restore Files” step listed in the guide below as there you could find alternative ways for .b2fr files recovery. But before you take any further actions, don’t forget to back up all encrypted files to an external drive in order to prevent their irreversible loss.

Gergana Ivanova

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for four years, researching malware and reporting on the latest infections.

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