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Test ransomware. How to remove? (Uninstall guide)

removal by Lucia Danes - - | Type: Ransomware
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Test ransomware – an updated variant of CryptoMix malware

Ransom note by Test ransomware

Test ransomware is another variant of CryptoMix ransomware family. The virus appends .TEST file extension to the targeted image, audio, video, text, document and many other targeted files. Malware delivers a file recovery instructions in the _HELP_INSTRUCTION.TXT file.

Test CryptoMix ransomware uses a combination of 11 public RSA-1024 and AES key for data encryption. The same encryption technique was used by previous versions of malware – 0000 and XZZX viruses. In addition, malware is designed to delete Shadow Volume Copies. Thus, data recovery becomes nearly impossible.

Following the encryption procedure, Test virus delivers a ransom note in the text file. Here, crooks tell to send their unique ID number to one of the provided emails in order to get detailed data recovery instructions. Currently, developers of ransomware use these email addresses:

  • test757@tuta.io,
  • test757@protonmail.com,
  • test757xz@yandex.com,
  • test757xy@yandex.com,
  • test757@consultant.com.

Cyber criminals will respond with a particular Bitcoin wallet address, and the sum of Bitcoins victims have to pay for the decryption software. However, transferring the ransom is never recommended[1] because hackers might ask for even more money and never send you decryption software.

Despite the fact that ransomware is currently undecryptable and chances to restore files with third-party software are low, you should still remove Test ransomware virus from the computer. The malicious program makes severe changes to the system that makes your PC vulnerable and unsafe to use.

Ransomware elimination should be performed with professional security software because crypto-malware might affect legitimate system processes. Thus, wiping out this cyber threat manually is nearly impossible. You should obtain Reimage or another anti-malware for Test ransomware removal.

Keeping away from suspicious email attachments helps to avoid ransomware attack

Test CryptoMix ransomware is most likely to infiltrate the system once you open an infected email attachment. These letters look legitimate and might inform about an important issue. Thus, unsuspecting victims can easily be convinced to open an unknown email.

Despite the fact that malicious spam email attachments remain one of the most popular ransomware distribution methods, malware researchers team from LosVirus[2] note that file-encrypting virus might be spread via:

  • malware-laden ads;
  • fake or illegal software downloads;
  • bogus updates;
  • exploit kits;
  • unprotected RDP connections.

Thus, security experts recommend paying attention and do not rush to click any content.[3] Always make sure that the download source is reliable and safe. Additionally, you should keep programs and operating system updated, install security software and create backups. Saving important files in the external storage devices or cloud helps to decrease the damage in case of cyber attack.

Remove Test CryptoMix ransomware virus

In order to remove Test ransomware entirely and without causing damage to the system, you have to use malware removal software. Numerous professional tools can help you to eliminate malicious components from the system. However, if you have no idea which one to choose, take our advise and obtain Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

Below you will find the guide which will help to disable the virus in order to install and run a system scan with a security tool. After Test removal, you can try to restore your files from backups or try alternative recovery methods. However, chances to restore all of the encoded data is low with third-party tools.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Test ransomware. 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.
More information about this program can be found in Reimage review.
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Manual Test virus Removal Guide:

Remove Test using Safe Mode with Networking

Automatic virus elimination might be complicated. Thus, you may need to disable the virus first in order to run security software. This guide will help you:

  • 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 Test

    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 Test removal.

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

Remove Test using System Restore

System Restore method also helps to terminate malicious program from the computer automatically.

  • 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 Test. 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 Test removal is performed successfully.

Bonus: Recover your data

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

The official decryptor is not released yet. However, you should not pay the ransom. It gives no guarantees that your files be recovered. Instead of taking the risk, you should try alternative recovery methods.

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

Try Data Recovery Pro

This tool helps to restore corrupted data. Thus, it might also recover some files with .TEST extension.

Try Windows Previous Versions feature

Users who were enabled System Restore before Test ransomware attack can restore individual files by following these steps:

  • 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 help if ransomware failed to delete Shadow Volume Copies

Even though ransomware is designed to delete shadow copies, sometimes the most dangerous programs fail to complete this task. In this case, you can call yourself extremely lucky.

  • 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.

Test CryptoMix decryptable is not available.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Test and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Lucia Danes
Lucia Danes - Virus researcher

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References