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GMBN ransomware. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Ransomware

GMBN ransomware – malware which is related to Matrix and is using .GMBN extension 

.GMBN files virus
GMBN - a file locking threat which uses unique codes to encrypt files

GMBN ransomware, also known as .GMBN files virus, is a file-encrypting malware which belongs to the Matrix ransomware family. After appearing on the system silently, the virus performs its malicious activities: drops its rogue content, encrypts data and changes the desktop cover to its ransom note. The virus typically installs its files and registries[1] to start working right after the system is rebooted. After that, it encrypts all data that is found on the infected device and locks the files by adding the .GMBN extension. Later on, the virus starts showing a particular message which demands ransom in exchange for data decryption. Even though there are no particular details about the ransom price yet, crooks are very likely to demand BTC.[2] Once the money is transferred, there still is a big chance that no decryption tool will be received, so make sure you don't pay anything.

Name GMBN
Category Ransomware
Related to Matrix ransomware
Appendix added .GMBN
Price type Bitcoin is urged to unlock files
Distribution ways Email spam, rogue sites, and infected links
Prevention tips Do not open any suspicious-looking messages, stay away from rogue content that you might find on the Internet
Elimination Use Reimage software to detect all malicious content

Once files are locked by GMBN ransomware, they cannot be accessed properly anymore. For example, if your car.docx was found car.docx.GMBN, that means the infection has approached your computer and documents. However, do not rush to pay the cybercriminals as you might face unexpected money losses and still not be able to recover your important files.

If the ransomware virus has invaded your system, you need to get rid of the malicious program ASAP! You should remove GMBN virus with the help of automatical tools only. Also, find all suspicious-looking components such as malicious registries and executables by using a reputable program such as Reimage or any other similar tool if you are likely to.

All misleading content needs to be eliminated permanently, otherwise, the GMBN ransomware removal will not be successful and the infection will still remain in the system. After the process, scroll down this article and take a look at some data recovery solutions offered for you. If you perform each step exactly as shown in the instructions, you might be able to restore some of your files back to their starter positions. You can also use your backups saved in locations that haven't been affected by the virus.

For some further information, you need to be very careful with all of your important documents and files. In order to avoid permanent losses or possible damage, you should keep all the valuable data on some type of remote servers or devices where nobody will be able to access it. This way you will prevent infections such as ransomware-related ones from reaching valuable information and corrupting it.

Ransomware viruses spread via phishing content

According to computer researchers from Virusai.lt,[3] ransomware-related content can easily enter the computer system via infected payload that comes attached to an email message. Do not open any letters that look questionable to you, especially those you were not expecting or those which fell in the spam sections as the risk of infection in this situation is very high.

Additionally, unsafe websites are a great distribution source for ransomware infections also. Stay away from all pages that look questionable to you. If you ever enter an odd website, make sure that you close the page as soon as possible. Furthermore, use antivirus protection to keep your computer safe from possible sneaky infections that might occur.

Remember to always update your program and download software, applications, movies, and other kinds of things from the Internet only by using reliable downloading sources. For example, P2P websites[4] such as Torrents or The Pirate Bay cannot be trusted as they are considered to be third-party networks which means there is a big chance that these sites came improperly disclosed.

Perform the elimination of .GMBN files virus and then recover your files

If you are keen on removing the ransomware virus, you should choose antimalware tools for this purpose only. However, you need to find all ransomware-related components in the infected computer system first. For this, we suggest using Reimage, Malwarebytes MalwarebytesCombo Cleaner, or Plumbytes Anti-MalwareMalwarebytes Malwarebytes. After the detection is finished, remove GMBN virus permanently and make sure that all malicious activities are disabled.

Performing the GMBN ransomware elimination requires lots of experience, that is why we suggest completing the process only with reliable computer software – to avoid mistakes. Once you are done with the removal, you can scroll down this text and check out our data recovery solutions. They might not recover all of your files, but it is definitely a better variant than paying money to the crooks.

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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. 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.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove GMBN virus, follow these steps:

Remove GMBN using Safe Mode with Networking

Use Safe Mode with Networking to deactivate the malicious infection:

  • 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 GMBN

    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 GMBN removal.

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

Remove GMBN using System Restore

Stop all virus-related activities by turning on 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 GMBN. 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 GMBN removal is performed successfully.

Bonus: Recover your data

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

Spotting files and documents with the .GMBN extension means that GMBN ransomware has occupied your computer system. If you want to recover your files, better not pay the crooks as you risk getting scammed. Rather than that, try our below-provided data recovery steps.

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

The Data Recovery Pro tool might be helpful with file restoring purposes:

Try this method if your files were encrypted by GMBN cyber threat.

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by GMBN ransomware;
  • Restore them.

Try using Windows Previous Versions feature for your files:

This tool might let you restore some of your lost data.

  • 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”.

Using Shadow Explorer tool for your documents might help:

Give this method a try if the virus did not eliminate Shadow 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.

No GMBN decryptor is available yet.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from GMBN and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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References