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Gandcrab 5.0.1 ransomware. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware

Gandcrab 5.0.1 ransomware is a new version of the notorious GandCrab that changed the ransom note from .HTML to .TXT

Gandcrab 5.0.1 ransomware
Gandcrab 5.0.1 ransomware is a dangerous cyber threat that attacks large companies and demands ransom.
 

Questions about Gandcrab 5.0.1 ransomware

Gandcrab 5.0.1 is a ransomware virus that encrypts users' data and marks these files with a file extension consisting of five random letters. This cryptovirus belongs to GandCrab ransomware family and the 5th its version which appeared only a few days after. Just like the initial GandCrab v5, it performs the encryption process and marks encoded data with the help of Salsa and RSA encryption algorithms.[1] The main change hackers did in this variant is the ransom note which switched from the HTML file to .txt file. The full name of the ransom note is [random_extension]-Decrypt.txt and it is placed on every folder on the system. Additionally, these ransomware developers choose the language according to the victim's operating system.

Name Gandcrab 5.0.1 ransomware
Type  Cryptovirus
Related  GandCrab 
Other Versions  GandCrab 5, GandCrab 5.0.2; GandCrab 5.0.4
File extension random five letters
Encryption methods Salsa20 and RSA-2048
Ransom note [random_extension]-Decrypt.txt
Distribution Fallout exploit, various vulnerabilities, spam email attachments
Attacks Mostly targets large companies
Elimination Use proper anti-malware like Reimage or Reimage to remove Gandcrab 5.0.1 ransomware from the system

The main goal of Gandcrab 5.0.1 virus is to enter the system unnoticed and encrypt files in various formats. This data encryption victimizes the machine and marks files with the appendix that indicates about made changes. When this process ends successfully, hackers leave ransom note to inform a user about the cyber threat and possible actions.

The main and probably the only difference this particular version has in comparison with the previous variants is the type of ransom note file. Since the beginning, GandCrab had the ransom note displayed in HTML file and this virus that emerged at the end of September 2018 places [random_extension]-Decrypt.txt file as the ransom message for the victims.

Gandcrab 5.0.1 ransomware ransom note reads the following:

—= GANDCRAB V5.0.1 =—
Attention!
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:>
—————————————————————————————->
•Download Tor browser – https://www.torproject.org/
• Install Tor browser
• Open Tor Browser
• Open link in TOR browser: http://gandcrabmfe6mnef.onion/e499c8afc4ba3647
• 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.
ATTENTION!
IN ORDER TO PREVENT DATA DAMAGE:
* DO NOT MODIFY ENCRYPTED FILES
* DO NOT CHANGE DATA BELOW

As various other crypto-demanding threats, Gandcrab 5.0.1 ransomware suggests using TOR[2] browser for these users when paying the ransom. Malware creators often choose this because it is anonymous and private. Cybercriminals behind this cyber infection don't want to be identified.

However, you shouldn't think about contacting these people at all because there is no guarantee that communication between the victim and the hacker would end up well. This and paying the ransom, in general, can lead to permanent data and money loss.

You need to take into consideration that Gandcrab 5.0.1 is the member of already dangerous crypto-demanding ransomware family. These people that create threats like this have one goal to extort money, and your data is not the thing they care about. Based on these facts, researchers[3] advise, staying away from people who developed the virus.

You need to think about the data recovery yourself because there is little to none possibility that hackers are going to decrypt your encoded files or any decryption tool would be released in the meantime. Remove Gandcrab 5.0.1 ransomware from the system, clean the system further and then try to recover your data with clean files from the backup.

If you have no backups, you can try to perform Gandcrab 5.0.1 removal and then use data recovery software. We have a few suggestions down below. Also, we recommend using Reimage or other anti-malware tools from the list below for the whole virus elimination process. 

Common ransomware spreading methods

Ransomware as one of the most dangerous cyber threats has this status for a reason. The most common way to spread this malware is infected spam email attachments which contain direct ransomware payload or other malware that is designed to spread cyber infections further.

Based on various victim comments, this particular version targets large companies and their networks. This fact makes the distribution method which relies on spam more useful as people working in these companies get a lot of emails every day. 

This distribution method works silently because the minute user opens the insecure email and downloads that file attachment malicious script gets on the system and starts the job. However, there are a few other methods used in ransomware attacks. Previous version in this family also known as using exploit kits to spread the malware on the devices. Also, RDP can be used to install malware if unprotected.

Eliminate Gandcrab 5.0.1 ransomware and its' malicious components 

Remember that ransomware is a notorious threat and can change various parts of your system if you decide to wait before terminating the virus. This process of Gandcrab 5.0.1 ransomware removal is difficult but crucial because you cannot use your device properly or restore files on the infected system ransomware immediately encodes additional data.

To remove Gandcrab 5.0.1 ransomware, you need to use tools like Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes to make sure that no malware remains on the system. You can use a few tools one after the other to double-check and remove all additional malware. When you carefully clean your device, restore your files by using backups. You can also restore them from the cloud or external device. However, if you don't have your encrypted files saved in a different location, use methods we provided below.

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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. 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 Gandcrab 5.0.1 virus, follow these steps:

Remove Gandcrab 5.0.1 using Safe Mode with Networking

The first thing you should try os to enter the Safe Mode with Networking so that you can check for malware on the system safely:

  • 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 Gandcrab 5.0.1

    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 Gandcrab 5.0.1 removal.

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

Remove Gandcrab 5.0.1 using System Restore

Follow these steps and try System Restore feature in Gandcrab 5.0.1 ransomware removal:

  • 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 Gandcrab 5.0.1. 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 Gandcrab 5.0.1 removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Gandcrab 5.0.1 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 Gandcrab 5.0.1, you can use several methods to restore them:

If you have not backed your files before, try Data Recovery Pro for encoded files

Data Recovery Pro can restore files after ransomware encryption. If you deleted your files, accidentally this program can also help

  • 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 Gandcrab 5.0.1 ransomware;
  • Restore them.

Windows Previous Versions is the feature you can use to restore encrypted data

If System Restore was enabled before, you can restore encrypted files using Windows Previous Versions

  • 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 is yet another option when dealing with Gandcrab 5.0.1 ransomware

Use ShadowExplorer to recover files if Shadow Volume Copies were left untouched

  • 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.

There is no possibility to decrypt Gandcrab 5.0.1 ransomware encoded files

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Gandcrab 5.0.1 and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Lucia Danes
Lucia Danes - Virus researcher

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References