Severity scale:  
  (98/100)

Null ransomware virus. How to remove? (Uninstall guide)

removal by Linas Kiguolis - - | Type: Ransomware
12

Null ransomware requires more than 10 thousand dollars for data decryption

The ransom note by Null ransomware

Null ransomware is a file-encrypting virus that uses AES cryptography[1] to corrupt various files on the targeted computer. It appends .null file extension and demands 2.2 Bitcoins for data recovery. After the attack, it delivers a ransom note in a pop-up window.

The ransom window has 5 tabs that include different information:

  • What happened to my PC
  • Encrypted files
  • How do I recover my files?
  • How do I send bitcoins?
  • What is AES 256?

Compared to other ransomware-type viruses, Null malware demands a huge ransom. Currently, 2.2 Bitcoins equals to almost 10.500 USD. Sending this sum of money is not recommended. You cannot be sure that crooks provide you working decryption software. Besides, if you have at least some of your files backed up, you can use them together with third-party tools.

The ransom note explains about data encryption and provides the list of encrypted files. Victims can see that ransomware encrypts at the most popular files, such as video, audio, image, documents, archives, and similar.

However, authors of the Null virus do not provide any relevant information on how to pay the ransom.Crooks also tell that users should disable their security software because it might disable decryptor. However, we strongly recommend doing the opposite.

Nevertheless, ransomware creates numerous system changes and might affect various processes; it’s not likely to delete Shadow Volume Copies. Thus, data recovery might be possible with third-party software. But first, you have to remove Null from the computer.

You have to wipe out malware from the system using professional security program. For Null removal, we highly recommend Reimage. Running full system scan with this security software will help to eliminate this cyber threat safely.

Cyber criminals use multiple strategies to spread file-encrypting virus

Hackers rarely rely on one malware distribution method. Null ransomware is also being spread using several ways and methods, such as:

  • malicious spam emails that include infected content, for instance, links or attachments;[2]
  • malware-laden ads;
  • illegal downloads;
  • bogus software updates;
  • fake program installers.

All these methods require user’s participation. Therefore, to avoid ransomware, you have to be careful with emails and do not open suspicious content. It goes without saying that illegal or suspicious downloads should not be considered too.

Security experts from Sweden[3] also remind that malware might spread using RDP and exploit kits. So, using strong passwords and keeping the software, as well as operating system, updated is necessary for protecting yourself.

Null ransomware elimination guidelines

The only safe way to remove Null ransomware from the PC is to use professional security software. Ransomware might create or modify Windows Registry entries, install numerous malicious files and affect legitimate system processes. Thus, trying to fix everything manually might end up with the damaged system.

Therefore, install Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware. These programs are perfect for Null virus removal. However, you may need to reboot your computer to the Safe Mode with Networking first. The explanation how it’s done is presented below.

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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 Null ransomware virus. 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.

More information about this program can be found in Reimage review.

Manual Null virus Removal Guide:

Remove Null using Safe Mode with Networking

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

Follow these steps to disable Null ransomware in order to run automatic its removal:

  • 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 Null

    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 Null removal.

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

Remove Null using System Restore

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • 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 Null. 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 Null removal is performed successfully.

Bonus: Recover your data

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

Data Recovery Pro is helpful after ransomware attack

This professional software can restore various corrupted files.

Windows Previous Versions feature might be useful after Null ransomware infiltration

If System Restore has been enabled before ransomware attack, you can copy previously saved versions of encrypted 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”.

Null ransomware decryptor is not available yet.

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

About the author

Linas Kiguolis
Linas Kiguolis - Expert in social media

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References