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GandCrab 5.0.5 ransomware. How to remove? (Uninstall guide)

removal by Linas Kiguolis - - | Type: Ransomware

GandCrab 5.0.5 ransomware – the newest variant of the infamous crypto-locker which is immune to the released decryptor

GandCrab 5.0.5 ransomware
GandCrab 5.0.5 ransomware is the latest variant of the GandCrab family. Unfortunately, this version is not decryptable

GandCrab 5.0.5 is a file locking virus that has been infecting PCs or not only regular users but also organizations all over the world since early 2018. To this date, it is estimated that the malware affected around half a million victims worldwide. Because it operates ransomware as a service scheme, many cybercriminals are employing GandCrab for money extortion purposes, which explains the immense prevalence of the threat. Recently, security researches claimed a victory against hackers by releasing a free decryptor which worked for GandCrab versions 1, 4 and 5.[1] Unfortunately, crooks are quick to recover, and this variant of malware is not decryptable.[2] Just as its predecessors, GandCrab 5.0.5 virus uses Salsa20 and RSA-2048 to encrypt data, adds .[random_5] file extension, and asks for payment in Dash or Bitcoin in [random_5]-DECRYPT.txt ransom note.

SUMMARY
Name GandCrab 5.0.5, 
Type Ransowmare
Most recent variants Gandcrab 5.0.1GandCrab 5.0.2GandCrab 5.0.3GandCrab 5.0.4 
Cipher used Salsa20 and RSA-2048
File extension .[random-5]
Ransom note [random_5]-DECRYPT.txt
Distribution Fallout EK, spam emails, vulnerabilities, weak RDP, etc.
Elimination Use Reimage or Malwarebytes MalwarebytesCombo Cleaner to get rid of the virus

GandCrab 5.0.5 ransomware uses various infiltration techniques. Looking at the infection rate alone, one can conclude that those methods are very successful. Hackers can use the following to spread the malware:

  • Exploit kits (Rig, GrandSoft, Fallout)[3]
  • Contaminated email attachments
  • Weak RDP configuration
  • Software vulnerabilities (ALPC Task Scheduler)
  • Backdoor trojans
  • Fake updates, etc.

As soon as GandCrab 5.0.5 virus is injected into the PC, it modifies Windows settings to retain persistence, for example, adds Windows Registry keys. Next, it starts the scan on the computer, looking for personal files to encode (note that system and few other file types are not affected). After that, GandCrab 5.0.5 ransomware contacts C&C server which is controlled by hackers and sends off the decryption key, uploading the ransom note to the victim's PC.

While GandCrab 5.0.5 ransomware removal will not return the files back to normal, it will make sure that your machine is virus-free again. Besides, as ransomware can get in with the help on a trojan horse, there is a chance that more cyber threats might be present. We recommend using Reimage or Malwarebytes MalwarebytesCombo Cleaner for prompt elimination, although any other reputable software that detects the infection can work as well.

GandCrab 5.0.5 uses a preset list of countries which computers the virus avoids. Among such countries are mainly post-Soviet ones, such as Russia, Belarus, Ukraine, Armenia, etc. Surprisingly, malware authors recently released a free decryptor for Syrian residents, showing sympathy to the victims of a relentless war. However, they do claim that such action is unique and will not be repeated in the future. GandCrab 5.0.5 now also includes Syria in its list of exemptions.

Nevertheless, malware authors are still criminals, and should never be trusted, even if the act mentioned above was considerate. Therefore, if you found your files encrypted by the virus, better remove  GandCrab 5.0.5 ransomware from your PC and attempt to recover your files with the help of third-party software, if you have not kept backups of your data.

Be attentive while browsing the internet, it will help you avoid ransomware attacks

Ransomware, among all the other cyber threats, is one of the most impactful and prevalent viruses in the existence because it can result in permanent data loss and disrupt the operation of the vital sectors like healthcare units or the aircraft plants. WannaCry was one of the most successful ransomware attacks in history, showing cybercriminals that the potential of such malware is immense. 

Those who infect their machines are very unlucky. Putting luck aside, many things can be done to prevent the infiltration. Experts suggest to do the following:

  • Beware of phishing emails, do not open attachments or click on hyperlinks inside – these actions can result in the immediate payload execution on your machine;
  • Update your software as soon as security patches come out. This way, exploit kits will not be able to penetrate your system;
  • Protect your RDP by using strong passwords and VPN;
  • Avoid file-sharing and torrent sites. Malware can be disguised as legitimate executables;
  • Employ sophisticated security software to prevent viruses from entering.

Get rid of GandCrab 5.0.5 ransomware and only then attempt file recovery

Unfortunately, if you got infected with the latest variant of GandCrab virus family, the files cannot be decrypted without the original key. Nevertheless, contacting and paying cybercriminals is not an option, as you might get scammed and lose your money (hackers might ask as much as $2400).

Therefore, if you noticed that your files are encrypted, do not panic. There is still a possibility to recover your data, even if you have not kept any backups. See the below instructions on how to use third-party software for that. Nevertheless, before you proceed, you need to take care of GandCrab 5.0.5 virus removal.

You should not try to remove GandCrab 5.0.5 ransomware manually, as the procedure requires professional tools. We suggest using Reimage or Malwarebytes MalwarebytesCombo Cleaner for the purpose, although other reputable security applications will work as well.

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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 5.0.5 virus, follow these steps:

Remove GandCrab 5.0.5 using Safe Mode with Networking

To remove GandCrab 5.0.5 ransomware you should enter Safe Mode with Networking:

  • 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 5.0.5

    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 5.0.5 removal.

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

Remove GandCrab 5.0.5 using System Restore

You can also use System Restore to get rid of the virus:

  • 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 5.0.5. 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 5.0.5 removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove GandCrab 5.0.5 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 5.0.5, you can use several methods to restore them:

Data Recovery Pro night help you recover files encrypted by GandCrab 5.0.5 ransomware

Data Recovery Pro is a professional tool that has been successful in retrieving encrypted data.

  • 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 5.0.5 ransomware;
  • Restore them.

Make use of Windows Previous Versions feature

This option will be functional only if you had System Restore enabled before the infection.

  • 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 might be the answer

While most of ransomware viruses aim to remove Shadow Volume copies, they might fail to do so occasionally. In such case, ShadowExplorer will recover all of your files.

  • 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 decryptor is created yet

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from GandCrab 5.0.5 and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Linas Kiguolis
Linas Kiguolis - Expert in social media

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References