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GusCrypter ransomware. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware

GusCrypter – ransomware which was discovered at the end of October 2018

GusCrypter ransomware
GusCrypter is ransomware which was discovered in October 2018.

GusCrypter is a ransomware virus which secretly infiltrates the computer system via spam messages and starts modifying the Windows Registry[1]. Once that happens, the dangerous cyber threat uses the AES cipher to lock up all documents that are located on the infected computer. GusCrypter virus, also known as GUScryptolocker, appears in the computer system as the GusCrypter.exe file. Moreover, this ransomware can be recognized from the .GUSv2 appendix it adds to each encrypted document. After that, the crooks urge for a particular ransom in Bitcoin which should be the price for the decryption tool. All information and contacts are given in the DECRYPT.html message.

Name GusCrypter
Type Ransomware
Starts activity in Windows Registry
Related file GusCrypter.exe
Cipher AES
Extension .GUSv2
Ransom note DECRYPT.html
Removal Get rid of the virus ASAP. Furthermore, install Reimage to take care of the damage

Here is the ransom note sample:

the ALL YOUR FILES the LOCKED!
YOUR PID: 567890123
YOUR the PERSONAL EMAIL: 5BTC@PROTONMAIL.COM
the WHAT the NOW?
Us email
the Write your ID AT title of mail and country AT old body of mail and? Answer: wait.
You have to pay some bitcoins to unlock your files!
DO NOT TRY DECRYPT YOUR FILES!
If you try to unlock your files, you may lose access to them!
REMEMBER!
No one can guarantee you a 100% unlock except us!

As you can see, crooks claim that no one except they can unlock your encrypted files. However, note that criminals who spread GusCrypter ransomware try to frighten their victims as much as possible. The more they succeed, the bigger the amount of revenue will be. Although the encryption and decryption codes are very difficult to identify, there are better options than transferring the demanded price.

We advise being more clever than the cybercriminals and staying away from any contact. You can never trust a crook like this as there is a very big chance of getting scammed. Moreover, you can face money losses which you definitely do not need. We suggest performing the GusCrypter removal as soon as possible and then trying to restore files by using third-party apps.

Note that you first need to remove GusCrypter virus and just then start thinking about data recovery, otherwise, the entire process will end up useless as the virus will easily renew itself with the next computer boot. Furthermore, download and install computer tools such as Reimage to take care of all damage that might have been done by the ransomware virus.

In some cases, ransomware[2] such as GusCrypter can easily open paths for other computer viruses. If such thing happens, your computer system becomes even more vulnerable and the damage might be even harder to take care of. This beforementioned reason should have increased your believing that these cyber threats need to be terminated ASAP.

Avoid ransomware infections and data encryption

According to IT experts[3], our computer’s and files’ safety is in our own hands most of the time. It is commonly known that ransomware viruses are spread through email messages which contain hazardous attachments. Always act carefully with every email letter you receive. Make sure that you identify the sender and check if the text is written properly and makes sense.

Talking about data safety, there also is a possibility to keep valuable files away from the criminals’ eyes. What you need to do is store important documents on a remote server such as iCloud or purchase a USB key. This way all information that is stored on these devices or servers will become unreachable for everyone, except its owner and that means – you.

Terminate GusCrypter ASAP

As soon as you spot the first symptoms, ransomware needs to be eliminated as soon as possible. To remove GusCrypter virus, use trustworthy and expert-tested anti-malware tools. Moreover, you can download and install reliable computer software such as Reimage, Malwarebytes MalwarebytesCombo Cleaner, or Plumbytes Anti-MalwareMalwarebytes Malwarebytes. These programs might help you detect all dangerous objects in the computer system.

After performing the GusCrypter removal make sure that you proceed with some system backups. Check if the virus and all ransomware-related components were eliminated successfully. Moreover, do not forget to be careful next time and remember all steps that are needed to avoid similar cyber threats in the future.

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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
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 GusCrypter virus, follow these steps:

Remove GusCrypter using Safe Mode with Networking

Enable the Safe Mode with Networking function on your computer system to deactivate the ransomware virus. Use these instructions if help is needed:

  • 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 GusCrypter

    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 GusCrypter removal.

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

Remove GusCrypter using System Restore

Activate the System Restore feature on your computer by taking a look at these steps:

  • 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 GusCrypter. 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 GusCrypter removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove GusCrypter from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

If you have been wondering how to restore locked files, you have come to the right place. Complete such process with the help of our below-given methods. We cannot guarantee that these tools will recover all files, but it is definitely worth a try!

If your files are encrypted by GusCrypter, you can use several methods to restore them:

Data Recovery Pro might help you get files back:

If ransomware has encrypted important documents on your computer, this method might let you restore some of them.

  • 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 GusCrypter ransomware;
  • Restore them.

Windows Previous Versions feature can help with data recovery:

This tool might be very helpful if used properly. However, it needs one condition to work – you should have enabled the System Restore feature before the virus entered your computer system.

  • 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”.

Using Shadow Explorer might let you recover some documents:

Note that this method will work only if the ransomware virus did not erase or damage the Shadow Volume Copies of encrypted documents.

  • 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.

Cybersecurity experts have not yet discovered the original GusCrypter decrypter.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from GusCrypter 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