How to Decrypt Files Encrypted by GandCrab Ransomware (Free)
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How to Decrypt Files Encrypted by GandCrab Ransomware (Free)

This article has been created to help explain how to remove GANDCRAB ransomware from your computer and how you can decrypt files for all versions of the virus, from the first one to the last one.

GandCrab ransomware is the type of malware that has become quite the celebrity among ransomware viruses. The virus aims to extort users to make a payment in BitCoin or Dash in return for their encrypted files. The virus used a variety of different file extensions for its different variants. Below you can see all of the versions of GandCrab so far:

Luckily for all of the victims who have asked for decryptors, now there is a free decryption tool that uses specific RSA-2048 private key, which BitDefender kindly provides in their GandCrab Decryption Tool. These news broke out after the GandCrab creators released free decryption keys for the victims of the virus, who are citizens of Syria.

Related: GandCrab Authors Release Decryption Keys for Syrian Citizens

GandCrab Ransomware Decryption – Update November 2018

A new version of GandCrab ransomware has come out, shortly after BitDefender have released their decryption tool, costing the GandCrab developers around 1 million dollars. The new version is called

GANDCRAB 5.0.5 and currently there has been no decryption for it. However, you can check our file recovery and removal video of the 5.0.5 version, which contains more instructions and alternative methods that may help you to try and restore at least some of the files encrypted by v5.0.5.

GandCrab Ransomware Decryption Instructions

The encryption process of the first versions of GandCrab (v1, v2 and v3) used AES-256 encryption with a Cipher Block Chaining. The newer versions (v4 and v5) now use Salsa20 algorithm. The virus used to encrypt a larger portion of the files, risking to damage them, but now it encrypts only a small portion of the files via Salsa20, enough to render them no longer able to be opened. This is how the researchers have managed to reach a breakthrough and the result of that is the BitDefender GandCrab Decryptor. Below, you can find instructions on how you can restore files, encrypted by this version of GandCrab for free.

Important! Before decrypting your encrypted files, you will need to have at least one ransom note from your infection, which is required to recover the decryption key. So, before removing the virus files, make a copy of the ransom note on a flash drive or other external drive. Make sure to do this before scanning your PC.

The most preferred way to remove GandCrab ransomware is by downloading an anti-malware program and running a scan. Such a program is designed to remove malware automatically and to further protect the system.


SpyHunter scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter

Decryption Steps

Important! Before beginning decryption, make sure that you are connected to the internet as the BitDefender GandCrab V1, V4, V5 Decryptor works with BitDefneder’s servers to find the decryption keys and recover your files.

Step 1: Download the BitDefender GandCrab Decryptor by clicking on the download button underneath:

Step 2: Save the file where you can find it and Run it:

Step 3: Agree with the Software License Agreement by clicking “I Agree”.

Step 4: If you want specific encrypted files in a single folder to be decrypted, select them by clicking on “Browse”. If you want all files on your computer to be decrypted, tick “Scan Entire System”.

Step 5: Do not forget to tick “Backup Files” before begging, in case something goes wrong. If you see the “Ready to scan” indicator, click on the “Scan” button to begin the decryption process.

Step 6: The software will begin looking for the decryption keys. Be advised that this will definitely take some significant time so arm yourself with patience.

Step 7: When the software has finished decrypting your files, you should find them in the folder:

Be advised to check if all of your files are DECRYPTED successfully before removing the encrypted ones. To remove the encrypted files, you can search them by using Windows search. This can happen by opening “This PC” (My Computer) in Windows and then in the search bar on it’s top-right type the follow and search for it:

→ fileextension:{the extension of your files}

The files should start appearing and when the search is done, press CTRL+A to select all and then press Shift+Del to delete all of the files simultaneously:

Conclusion and Important Tips

Keep in mind that this decryption tool will first try to decrypt 5 files and if this test does not pass, it will not continue, although the probability for that is very low. Also note that BitDefender researchers find it important to receive any feedback, so if you fail to decrypt your files, you should contact them on forensics@bitdefender.com and send them the log file of the decryption process, which is usually located in %Temp%\BDRemovalTool directory.

Avatar

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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Windows Mac OS X

How to Remove GandCrab Ransomware from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove GandCrab Ransomware

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall GandCrab Ransomware and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by GandCrab Ransomware on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by GandCrab Ransomware there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for GandCrab Ransomware with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by GandCrab Ransomware.

Ransomware infections and GandCrab Ransomware aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

If the above link does not work for you and your region, try the other two links below, that lead to the same product:

and

2. On the download page, click on the "Download" button:

3. Click on "Save File" button:

4. Accept all agreements and click "Next":

5. After all the "Next" steps, click on "Install" and then wait for the installation to complete:

6. Run the software. Click on the location to scan for missing or deleted files and click on "Scan":

7. Wait for the scan to complete, it may take some time. Be advised that this scan is not 100% guaranteed to recover all files, but it does have some chance to get your data back:


Windows Mac OS X

Get rid of GandCrab Ransomware from Mac OS X.


Step 1: Uninstall GandCrab Ransomware and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to GandCrab Ransomware:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to GandCrab Ransomware. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to GandCrab Ransomware. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove GandCrab Ransomware via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as GandCrab Ransomware. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove GandCrab Ransomware files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as GandCrab Ransomware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Step 3 (Optional): Try to Restore Files Encrypted by GandCrab Ransomware on your Mac.

Ransomware for Mac GandCrab Ransomware aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery Mac app by clicking on the link underneath:

38 Comments

  1. AvatarAtikah

    Hi, Mr Ventsislav Krastev.

    Thank you for the information you have kindly posted above.

    On November 3rd 2018, I discovered that my PC was affected by GANDCRAB V5.0.4 by referring to JKSLZYRVRQ-DECRYPT. It seems to be everywhere in my computer. I have downloaded BDGandCrabDecryptor.exe.

    I have also followed the provided steps properly. Each time I try to scan using Bitdefender GandCrab V1, V4, V5 Decryptor – system looking for encryption key. After a while, it is shown that initialization failed.

    Reply
    1. AvatarVentsislav Krastev

      Hello Atikah,

      I have done a check up on v5.0.4 of GandCrab and BitDefender has stated that it may not be able to work, since 5.0.4 is an updated GandCrab variant that contains fixes in the encryption process. Here is more info about it:

      https://labs.bitdefender.com/2018/10/gandcrab-ransomware-decryption-tool-available-for-free/

      I have however heard of people, affected by 5.0.4 who were able to decrypt their files, so this is what i advise you to do:

      During the scanning process, the BitDefender decryptor is connecting to the servers of BitDefender in order to look for decryption based on your decryption key in the ransom note. If the server fails to retrieve a key, then you can manually contact BitDefender by clicking on the “Feedback” button on the bottom right of the decrypter. As they say in their page you can also contact them via their support e-mail provided in their tool.

      Reply
      1. Avatarsam

        Hi Ventsislav
        My PC was affected GandCrab V5.2
        all my folder are crypted by .eddnnalkgl
        is there any solution please ?
        how time to got an update or a decryptor for new virus like this one ?
        thanks

        Reply
  2. Avatarsamar

    i infected with GANDCRAB V4 and i downloaded Bitdefender and it dose not work with me

    Reply
    1. AvatarVentsislav Krastev (Post author)

      Hello, see see the reply above.

      Best Regards

      Reply
  3. AvatarAsniel Alfonso

    This tool show me one error Initialization FAILED!, Plase I’am from Cuba and I need recovery some important information. The versión of GandCrab v5.0.3. Thank, helpme

    Reply
  4. AvatarVentsislav Krastev

    Hello,

    It seems to me that currently the decryptor works only for versions up to 5.0.2. All versions from 5.0.3 (including), 5.0.4, 5.0.5 are currently not decryptable.

    Reply
  5. AvatarHina

    Hello, I tried using bidefender for decrypting my data which is infected by V4 GrandKrab Virus but it says Initialization Failed. What should I do?

    Reply
  6. Tsetso MihailovTsetso Mihailov

    Hello Hina,

    that version is supported in BitDefender’s decryptor. It should work. Try contacting BitDefender and tell them about the issue – if anybody knows why that error shows, it would be them.

    Reply
  7. AvatarJoehadi

    can you help me ransomeware grandcrab 5.0.4 file infected .artpov

    Reply
  8. Avatarcarlos

    hola tengo un ransomware de npgtll-descrypt.txt requiere gandcrab v5.1 la ayuda pertinente muchas gracias.

    Reply
  9. Avatarravindra

    How can I Decrypt Gand Crab Ransomware v5.1?

    Reply
  10. AvatarRomina

    Hola, tengo mis archivos infestados con GandCrab v5.1, por favor necesito recuperarlos. Hay alguna herramienta que se pueda utilizar o fecha estimativa de tenerla?

    gracias.

    Reply
  11. AvatarDuncan

    Bonjour
    Cet article m’a aidé à supprimer le ransomware Gandcrab 5.1 de mon ordinateur, cependant, tous mes fichiers ont été crypté et l’extension (.NJAVJLM) ajoutée à tous mes fichiers. Dans mon cas les solutions de récupération de données proposées ici ne fonctionnent pas. Pouvez-vous m’aider ?

    Merci

    Reply
  12. AvatarHemau

    Fichier crypté par Gandcrab v5.1 avec l’extension .Fiche.
    BitDefender decrytor ne fonctionne pas erreur d’initialisation ECHEC

    Reply
  13. Tsetso MihailovTsetso Mihailov

    @Joehadi, carlos, ravindra, Romina, Duncan, Hemau – try the decrypptor tool now – it got updated and works with v5.0.4 and 5.1 of GandCrab.

    Reply
  14. AvatarStefan

    verschlüsselte Datei mit der Endung Gandcrab v5.2 .Vaisuu.
    BitDefender decrytor nicht funktioniert Initialisierungsfehlers FAIL

    Reply
  15. AvatarMimbari

    Hallo Sensors Tech Team
    All meine Dateien,Fotos,Videos und Sonstiges wurden am 09. Februar 2019 durch “GandCrab V5.1” verschlüsselt und haben seitdem die Erweiterung “SPKFSF”.Erpresserbrief ist auch vorhanden.Gibt es schon eine Möglichkeit meine Dateien wieder zu entschlüsseln?

    Reply
    1. Tsetso MihailovTsetso Mihailov

      @Mimbari (Maik Oebels)

      Download the decryption tool linked in this article above. It should decrypt your files.

      Reply
  16. AvatarAndy

    My PC was affected GandCrab V5.2 with .rzdeqpr extension in all my files.. any decryptor for V5.2 released ?

    Reply
  17. AvatarLock

    My PC was affected GandCrab V5.2 with .WKNZFU extension in all my files.. any decryptor for V5.2 released ?

    Reply
  18. AvatarLuis Enrique

    Saludos, por favor alguien que me ayude con el archivo descifrador , me bajo de la pagina pero al momento de ejecutar no se muestra ni la primera pantalla, alguien me puede facilitar el archivo

    Reply
  19. Avatarbledar hasimi

    My PC was affected GandCrab V5.2 with .mafwjqdmoz extension in all my files.. any decryptor for V5.2 released ?

    Reply
    1. Milena DimitrovaMilena Dimitrova

      Hi there,

      Unfortunately, no decrypter so far.

      Reply
  20. Avatarsealover1

    My PC was affected GandCrab V5.2 as well this is my 1st time has anything been released for V5.2 yet please?

    Reply
    1. Milena DimitrovaMilena Dimitrova

      Unfortunately, no decryption tool for this version of GandCrab is available at the moment.

      Reply
  21. AvatarYOGA

    Hi
    My PC was affected GandCrab V5.2
    all my folder are crypted by .eddnnalkgl
    is there any solution please ?
    thanks

    Reply
    1. Milena DimitrovaMilena Dimitrova

      Hi there,

      Unfortunately, for now there is no decryption for this version of the ransomware. More information about it here: https://sensorstechforum.com/remove-gandcrab-v5-0-2-ransomware-restore-data/

      Reply
  22. AvatarYOGA

    hi, milena
    My PC was affected GandCrab V5.2 not 5.02
    all my folder are crypted by .eddnnalkgl
    is there any solution please ?
    is it possible to got a solution in the future ?? i can wait !!
    thanks

    Reply
  23. AvatarAlamin Rahman

    My Pc affected by GandCrab V5.2
    my all file and folder encrypted by .iopumlym

    How I solve it. anybody help me, please.

    Reply
  24. AvatarArmando

    Mi equipo se infecto con GANDCRAB V5.2, encripto todos los archivos y quedaron con las terminaciones “.dhiwxyc” y “.promoz” hay alguna posibilidad de recuperaciòn? .. Gracias

    Reply
  25. Tsetso MihailovTsetso Mihailov

    No decryption is available for GANDCRAB V5.2, it will probably take weeks / months for such a solution to become available.

    Reply
  26. AvatarNaresh Mandoth

    Hi, My pc was infected with gandcrab 5.2 i need to decrypt files with extension .yyies please help me decrypt it.

    Reply
  27. AvatarFirshan

    Hello

    My files are all encrypted with an extension ohdbb. I have no clue how to decrypt please advice this happened just today noon. Please help
    thank you

    Reply
    1. Milena DimitrovaMilena Dimitrova

      It seems that you’ve been infected by a version of GandCrab which is not decryptable for now.

      Reply
  28. AvatarMarco

    Is the new GandCrab decryptor out?

    Reply
  29. Avatar@lle

    Is the new GandCrab 5.2 decryptor out?

    Reply
  30. AvatarHenry Mora

    My files are all encrypted with an extension nesa
    Is there decryptor???
    Thanks

    Reply

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