Severity scale:  
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B2DR ransomware. How to remove? (Uninstall guide)

removal by Gabriel E. Hall - - | Type: Ransomware

B2DR – ransomware virus that locks popular files with AES encryption

B2DR ransom note

B2DR is a file-encrypting virus that is created for encrypting files with AES cryptography. Ransomware[1] also appends .bronmerkberpa1976@protonmail.com.b2dr file extension to each of the affected document, image, audio, video or other important files. Following the encryption, malware also provides ransom-demanding instructions in the readme.txt file.

Summary
Name B2DR
Type Ransomware
Danger level High. Makes system changes, encrypts files
Cryptography AES
File extension .bronmerkberpa1976@protonmail.com.b2dr
Ransom note readme.txt
Distribution method Malicious spam emails, bogus software downloads, fake update installation, exploit kits.
To uninstall B2DR, install Reimage and run a full system scan

B2DR ransomware seems to be spread via malicious spam email attachments.[2] However, other distribution methods might be applied too. As soon as malware executable is dropped on the system, malware modifies Windows Registry, installs harmful components and starts scanning the system looking for files to encrypt.

B2DR virus targets commonly used files to cause more damage to the users and urge them to pay the ransom. Malware makes files inaccessible by appending .b2dr extension. However, the new file extension also has a contact email address – bronmerkberpa1976@protonmail.com.

In the ransom note called readme.txt, authors of B2DR ask to send them an email in order to learn how to get back access to corrupted files:

All your files are encrypted.
Ask how to restore your files by email bronmerkberpa1976@protonmail.com
Use only gmail.com, yahoo.com, protonmail.com.
Messages written from other mail services we can not get.
!!!With any changes to the encrypted files, do not forget to backup files!!!
Your ID: ***

According to malware researchers, crooks offer to decrypt three files smaller than 2MB before paying the demanded sum of money:

Hey. Archive any three files no larger than 2 mb.
Archive upload to http://sendspace.com and send us a link to the archive.
We will decrypt the files. Thank you.

However, security specialists do not recommend playing such games. Having a business with cybercriminals is never a good idea. Therefore, instead of giving your money to evil-minded people, you have to remove B2DR from the PC. Even though this procedure won’t bring back your files, but it ensures that you won’t lose your money.

Cybercriminals may never give you B2DR decryptor, but blackmail you into paying hundreds or even thousands of dollars. Though, these three files might be the only data you might retrieve. However, crooks might threaten to delete or leak personal information in order to get more money from you.

For this reason, you should decrease your loss by eliminating ransomware. After B2DR removal with Reimage or other malware elimination software, you can try to recover files using third-party software. There’s still a chance that some of them can be rescued.

Malicious spam emails are the main ransomware distribution method

Ransomware executable usually spreads as obfuscated spam email attachment. The payload might look like Word, PDF, ZIP or other legit file or archive. The letter itself might look like sent from the official organization or popular company. Though, inattentive computer users can be quite easily tricked and let a file-encrypting virus into the system.

However, security specialists from faravirus.ro[3] tell that suspicious emails are not the only way malware might sneak into the device. Malware might also be installed after clicking malicious ad, installing bogus programs or software updates, downloading illegal programs, music, movies or other content, or by exploiting security vulnerabilities.

Eliminate B2DR ransomware virus from Windows OS

B2DR removal requires employing strong and updated anti-malware tool. However, malware might block security software and prevent from simple elimination. The good news is that ransomware can be disabled by booting to Safe Mode with Networking.

Then, you can install Reimage, Malwarebytes Anti Malware or your preferred anti-malware software and remove B2DR automatically. After that, you can use backups or try alternative recovery solutions. You can find our suggestions below.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall B2DR ransomware. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.
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Manual B2DR virus Removal Guide:

Remove B2DR using Safe Mode with Networking

Follow these steps to disable the virus and run automatic elimination:

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove B2DR

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete B2DR removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove B2DR using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of B2DR. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that B2DR removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove B2DR from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

If your files are encrypted by B2DR, you can use several methods to restore them:

Try Data Recovery Pro after B2DR ransomware attack

This tool can recover corrupted files and might be useful after ransomware attack. Though, we cannot promise that it brings back all of the data.

Try Windows Previous Versions feture

This method can help to recover individual files if System Restore was enabled before ransomware attack.

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

ShadowExplorer might recover files with .b2dr extension

In order to recover files with ShadowExplorer, you have to make sure that malware did not delete Shadow Volume Copies.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

B2DR decryptor is not available yet.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from B2DR and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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