GandCrab Ransomware Recovery

Has GandCrab Ransomware hit your company? If files got encrypted and your backup strategy fails, you can have a company wide emergency on your hands. More importantly, GandCrab is known to be relatively inactive since May 2019 and you may not be be able to decrypt your files even if you pay the attacker.

This page provides all information you need to know about the Gandcrab group, their history, creation, Ransomware as a Service Model, their process of shutting down operations and more importantly, the decryption process and potentially freely available decrytor tools.

Don’t fret. We’re here to help you in recovering your files.

GandCrab Ransomware Recovery

How do I know if GandCrab Ransomware has infected my system?

While it may sound like an infectious disease, Gandcrab was actually a virus that started rearing its ugly head somewhere around the early months of 2018. From then, until the shutting down of its operations, the creators managed to wreak havoc across the world, encrypting data and demanding ransom payments left and right.

No individual or company, big and or small, was safe from them. The reason they were so successful is because they maintained a successful affiliate model, also known as the Ransomware as a Service business model.

  • There are a number of signs pointing to a GandCrab ransomware infection:
  • You receive a message that your data is encrypted and that you have to pay a ransom.
  • The names of your files or file extensions change suddenly
  • The desktop wallpaper has suddenly disappeared
  • CPU utilization is 100%, although you hardly use any applications
  • Your computer reacts very slowly to commands
  • The hard disk seems to process data without pause
  • Your virus protection is deactivated and cannot be started

What should I do when my data has been encrypted by GandCrab Ransomware?

Shut down your computer or server in a normal fashion and disconnect all network connections as soon as possible, including but not limited to any data storage devices along with cloud storage. For more details please visit the Ransomware Information site.

Do not pay the ransom or try to remove GandCrab ransomware trojan on your own.The group known to have performed these GandCrab attacks have publicly announced that they are no longer active. So anyone demanding payments may not actually have working decryption keys.

You should leave the removal of ransomware and, the subsequent recovery of your valuable company data, exclusively to experts.

BeforeCrypt can help you as a serious and highly-effective partner should you be infected by GandCrab ransomware. Thanks to our experience and knowledge, we can recover 100% of your encrypted data in most cases.

Keep calm! Contact us, and we can help you!

Ransomware Recovery Ransomware Decryption


Due to a variety of factions which deploy GandCrab ransomware, there is usually a large disparity between the ransom amounts involved in different cases.

The average GandCrab ransom amount is somewhere between $600–$600,000. In addition Dash exchange fees will apply. Dash is an alternative to Bitcoin.

  • GandCrab Ransomware average ransom in USD $

The GandCrab ransomware downtime is comparatively shorter than other types of ransomware. This is due the fact that GandCrab attackers used automated TOR sites to accept payment and deliver decryptor keys.

Depending on your company size and how often you use IT-systems in your daily business, this is the most expensive part of this incident. Additional to the unavailability of your IT-systems, this is damaging your company reputation.

Your goal should be to get your systems back to a productive state as soon as possible. The best way to do this is to call in experts, which have a vast knowledge of GandCrab ransomware and get the IT-systems back up running.

  • GandCrab
  • All Ransomware

There is a high chance to get a working GandCrab decryptor after paying the attackers. This is because they use an automated process to accept payments and deliver the decryption tool. But there’s never a guarantee to get a working decryption key at all.

  • Paid Decryption Successful
  • Paid Decryption Failed

The most common attack vector for GandCrab ransomware is an unsecured RDP-Connection (Remote Desktop Protocol). Followed up by phishing emails and security vulnerabilities.

  • Remote Desktop (RDP)
  • Phishing Emails
  • Security vulnerabilities
NameGandCrab Virus / GandCrab Ransomware
Danger levelVery High. Advanced Ransomware which makes system changes and encrypts files
Release dateJanuary 30, 2018
OS affectedWindows
Appended file extensions.gdcb, .crab, .krab, .KRAB, .lock, .[random_characters]
Ransom note.krab-decrypt.txt, [randomly_generated_extension]-DECRYPT.html, [victim's ID]-DECRYPT.txt, [victim's ID]-DECRYPT.html, KRAB-DECRYPT.txt, GDCB-DECRYPT.txt
Contact email addressPayment is accepted through automated TOR site


GandCrab Ransomware Note #1: TOR Website

GandCrab Ransomnote-TOR

This is an average GandCrab ransomware note.

GandCrab Ransomware Note #2: Text file

GandCrab Ransomnote-txt

—= GANDCRAB V5.1 =—




All your files, documents, photos, databases and other important files are encrypted and have the extension: 

The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files.

The server with your key is in a closed network TOR. You can get there by the following ways:


| 0. Download Tor browser –

| 1. Install Tor browser 
| 2. Open Tor Browser 
| 3. Open link in TOR browser: [TOR link]
| 4. Follow the instructions on this page


On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free.






Almost always, there is a * .txt file in every folder that has been encrypted. The text file usually has the name “GDCB-DECRYPT.txt” and contains all the necessary information to contact the GandCrab Ransomware attackers to get your data back. It’s usually safe to open this file, just be sure the full file extension is *.txt.

GandCrab Ransomware: Modified Filename Extensions

GandCrab ransomnote-file

GandCrab ransomware file names just show a different file extension. Unlike other ransomware variants, GandCrab don’t includes an attacker email address or a unique ID in the filename.



Depending on the variant of GandCrab ransomware, it could be possible that there’s a publicly available decryption method. Please use our request form, and we can check this for free for you. You can also use free websites to check this, too.

GandCrab ransomware creates multiple Windows registry entries, creates hidden executable files and sometimes opens a backdoor in firewalls for further access. There are multiple steps necessary, including the cleaning up of the Windows registry, scanning for malware and the manual cleanup of the GandCrab ransomware. Depending on the system environment, it is sometimes safer and faster to reinstall the operating system.

The most common attack vector for GandCrab ransomware is an unsecured RDP-Connection (Remote Desktop Protocol). It is followed up by phishing emails and security vulnerabilities.

GandCrab ransomware encrypts files with an AES-265 bit and RSA-2048 encryption algorithm.

  1. We can reduce your downtime from ransomware significantly. We deal with over a hundred cases every year. We know what to do to keep the downtime for your company to an absolute minimum. You can benefit from our expert knowledge and don’t need to do time-intensive researches by yourself. Most of our cases are completely resolved within 24-72 hours after we begin the recovery process.

  2. Don’t deal with criminals directly. Most companies don’t feel comfortable dealing with cyber-criminals. It can add a layer of stress and risk in this emergency. We handle all communication with the criminals for you according to all applicable laws and regulations to restore your data as fast as possible.

  3. Instant Ransomware Payment. We don’t recommend that you pay the ransom. But sometimes there’s no other way if backups and normal recovery methods fail. If you try to buy Bitcoins yourself, an intensive know-your-customer process is usually required, which takes 2-6 days for large amounts. To save you this trouble, we always have Bitcoins in stock and can make payments instantly.

  4. We don’t damage your data. We always use industry best practices to back-up your encrypted data, remove the Ransomware trojan and then restore your data with normal recovery methods or decrypt the data with the official software. This standardized process ensures that your data won’t get damaged and that the ransomware no longer spreads on your network.

  5. Easy Insurance Reporting: You receive a detailed report and a sample letter to easily submit all necessary information to your cyber-insurance. Cyber-insurance usually covers a huge part of the costs involved with ransomware incidents.
  1. Backup, Backup, Backup! Use a separate backup destination like a secure cloud storage provider or a local backup medium which is physically disconnected after a successful backup run.
  2. Install a Next-Gen Antivirus. Next generation anti-virus software combines a classic signature-based antivirus with powerful exploit protection, ransomware protection and endpoint detection and response (EDR).
  3. Install a Next-Gen Firewall. A Next-Gen-Firewall is also called Unified threat management (UTM) firewall. It adds a layer of security at every entry and exit point of your company data communication. It combines classic network security with intrusion detection, intrusion prevention, gateway antivirus, email filtering and many other features.

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