Danger level:  
  (99/100)

GandCrab virus. How to delete? (Removal tutorial)

removal by Julie Splinters - - | Type: Ransomware

Criminals aim to infiltrate GandCrab ransomware on as many computers as possible

GandCrab ransomware

GandCrab is a ransomware-type infection which targets to encrypt data on the computer and as for a ransom in exchange for a decryptor. Developers employ two exploit kits and deceptive PDF file attachments to infiltrate the virus on the machines. Files become unusable as soon as they are appended with .GDCB extension and victims receive GDCB-DECRYPT.txt file as a ransom note. 

Those whose computers are infected with GandCrab are demanded to pay 1.54 DASH which is an open source cryptocurrency. According to the experts, it particularly aims to compromise 64-bit versions of Windows operating systems. Here is the fraction of the ransom note:

—= GANDCRAB =—

Attention!
All your files documents, photos, databases and other important files are encrypted and have the extension: .GDCB
The only method of recovering files is to purchase a private key. It is on our server 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:
1. Download Tor browser – https://www.torproject.org/
2. Install Tor browser
3. Open Tor Browser
4. Open link in tor browser: http://gdcbghvjyqy7jclk.onion/[id]
5. 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.

DANGEROUS!
Do not try to modify files or use your own private key – this will result in the loss of your data forever!

Criminals inform their victims about the data encryption and claim that the only way to get back the access to the files is to purchase a private key. At the current exchange rate, its cost is approximately $970. Also, to earn people's trust developers of GandCrab ransomware offer to decrypt one file for free.  

Although, we can assure you that there are alternative ways how you can recover compromised documents without paying the ransom. First, you need to remove GandCrab to be able to start data recovery. You can find the guide below which will help you with the procedure.

Additionally, GandCrab virus is designed to have a timer — one the given time runs out, the amount of the ransom doubles. This is another great reason why you should NOT trust the criminals. They are unreliable and may trick you into making the transaction without giving the decryption key.

Therefore, we strongly advise you to consider GandCrab removal as soon as it reaches your system. You can get rid of it quickly with the help of Reimage or another robust antivirus. Remember, you have alternative ways how to recover encrypted files without suffering from financial losses. 

The peculiarities of Rig and GrandSoft exploit kits which are said to be the primary ransomware attack vectors

Cybersecurity experts have detected the primary source which helps to infiltrate the ransomware on the targeted computers — RIG exploit kit and GrandSoft exploit kit. This software is designed to find system vulnerabilities and utilize them to let the malware inside. Currently, developers of this file-encrypting virus are actively spreading their program via the malspam campaign, called Seamless. 

While criminals send spam letters to random people, they all contain a fake PDF attachment which is set to download the .doc file and run a PowerShell script. The bogus code creates sct5.txt file which executes an exploit and points the direct way for malware to infiltrate the system. 

Experts warn that spam emails have Receipt Feb-21310 [random numbered] subject and are sent from the email address which contains [different text]@cdkconstruction.org end. Likewise, if you receive an email with information mentioned above, immediately delete it and do NOT open the attachment. 

It is worth to mention that you can quickly spot a spam email with malicious intentions by carefully checking for spelling mistakes or encouragements to click on the file attachment. Usually, crooks impersonate legitimate companies and try to lure gullible people into opening a fake invoice for further details.

Be careful and is you see a suspicious email, do NOT click on it. Especially be cautious of file attachments with the following extensions:

  • .jar;
  • .wsf;
  • .hta;
  • .pif;
  • .exe;
  • .jse;
  • .vsb;
  • .scr;
  • .com;
  • .js.

Additionally, be careful when downloading software from suspicious websites. Hackers might trick you into downloading malware which disguises as legitimate programs. Therefore, the best decision would be to get a robust malware removal tool and download applications only from authorised developers. 

Tips for safer GandCrab virus removal

It is evident that this ransomware is highly dangerous. For this reason, we advise our readers to act quickly and get a professional anti-malware software to remove GandCrab instantly. The quicker you react, the less time this file-encrypting virus has to do more damage.

You can get Reimage, Malwarebytes MalwarebytesCombo Cleaner, or Plumbytes Anti-MalwareMalwarebytes Malwarebytes for GandCrab removal right now. They are tested and approved by our cybersecurity experts. However, in case you are blocked from installing the security software, you should circumvent the system of the ransomware. 

You can get instructions on how to uninstall GandCrab below. They will show how to disable the virus and protect your computer in the future. Although, it is vital to follow them strictly, in order to successfully terminate this cyber threat. 

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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. Reimage scans the entire computer system and checks whether it is infected with spyware/malware or not. If you want to remove computer threats and secure your computer system, you should consider buying the licensed version of Reimage.
Alternative Security Tools
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Security Tools
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.
GandCrab virus screenshot
GandCrab virus screenshotGandCrab virus screenshotGandCrab virus screenshotGandCrab virus screenshotGandCrab virus screenshot

To remove GandCrab virus, follow these steps:

Eliminate GandCrab using Safe Mode with Networking

First step in GandCrab's removal process is rebooting your computer to Safe Mode with Networking. For that, follow the guidelines below.

  • Step 1: Restart your computer in Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Safe Mode with Networking from the list Choose 'Safe Mode with Networking' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Networking from the list of options in Startup Settings. Choose 'Enable Safe Mode with Networking' option
  • Step 2: Remove GandCrab

    Sign in to your account and launch any Internet browser. Download a legitimate anti-malware software, for instance, Reimage. Make sure you update it to the latest version and then run a full system scan with it to detect and eliminate all malicious components of the ransomware to remove GandCrab completely.

If your ransomware does not allow you to access Safe Mode with Networking, please follow the instructions provided below.

Eliminate GandCrab using System Restore

If the ransomware is still blocking the installation of the antivirus software, try this method:

  • Step 1: Restart your computer in Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Command Prompt from the list Choose 'Safe Mode with Command Prompt' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Command Prompt from the list of options in Startup Settings. Choose 'Enable Safe Mode with Command Prompt' option
  • Step 2: Perform a system restore to recover files and settings
    1. When the Command Prompt window appears, type in cd restore and press Enter. Type 'cd restore' without quotes and hit 'Enter'
    2. Then type rstrui.exe and hit Enter.. Type 'rstrui.exe' without quotes and hit 'Enter'
    3. In a new window that shows up, click the Next button and choose a restore point that was created before the infiltration of GandCrab and then click on the Next button again. When 'System Restore' wizard comes up, click 'Next'. Choose a preferable restore point and click 'Next'
    4. To start system restore, click Yes. Hit 'Yes' and start system restore
    After restoring the computer system to an antecedent date, install and check your computer with Reimage to uncover any remains of GandCrab.

Bonus: Restore your files

Using the tutorial provided above you should be able to eliminate GandCrab from the infected device. novirus.uk team has also prepared an in-depth data recovery guide which you will also find above.

There are a couple of methods you can apply to recover data encrypted by GandCrab:

Benefit from Data Recovery Pro

IT specialists have developed this software to recover data in case of system crash or if the information was deleted unintentionally. Although, victims of ransomware attack can also use it to get back encrypted data.

  • Download Data Recovery Pro;
  • Install Data Recovery on your computer following the steps indicated in the software’s Setup;
  • Run the program to scan your device for the data encrypted by GandCrab ransomware;
  • Recover the data.

You can use Windows Previous Versions Feature

People who have System Restore function enabled before ransomware infiltration are advised to try this inbuilt Windows feature. However, it is mostly useful when the victim aims to recover only individual files.

  • Right-click on the encrypted document you want to recover;
  • Click “Properties” and navigate to “Previous versions” tab;
  • In the “Folder versions” section look for the available file copies. Choose the desired version and press “Restore”.

Take advantage of ShadowExplorer

This software requires non-compromised Shadow Volume Copies. If they are in place, use the instructions below:

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Install Shadow Explorer on your computer following the instructions in the software’s Setup Wizard;
  • Run the program. Navigate to the menu on the top-left corner and select a disk containing your encrypted files. Look through the available folders;
  • When you find the folder you want to recover, right-click it and select “Export”. Also, choose where the recovered data will be stored.

GandCrab decryptor is still under-development.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from GandCrab and other dangerous viruses, you should install and keep a powerful malware removal tool, for instance, Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes.

About the author

Julie Splinters
Julie Splinters - Spyware and malware removal expert

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Source: https://www.2-spyware.com/remove-gandcrab-ransomware.html

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