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

removal by Jake Doevan - - | Type: Ransomware
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How dangerous is Nhtnwcuf ransomware virus?

The appearance of the Nhtnwcuf ransomware should encourage many computer users to backup their files. If you haven’t encountered this cyber threat yet, you know what to do[1]. Nevertheless, the developers of the virus promise to provide necessary decryption software and key in exchange for one bitcoin; it’s just a lie. The ransomware does not simply encrypt files. It damages them by overwriting them with garbage bytes. It means that there’s any other way to restore files than to use data backups. Thus, Nhtnwcuf virus might cause irreparable damage. Once it sneaks inside the system, it starts data encryption procedure that takes only a few minutes. The virus aims at the most popular file types and databases and appends .mkf, .ije or .nwy file extensions. Since then, people cannot open and use their documents, pictures, and other records. However, they might find !_RECOVERY_HELP_!.txt file that includes explanation what have happened and how to solve this issue. Cyber criminals inform that Nhtnwcuf removal with any antivirus program won’t help to restore encrypted files. Unfortunately, they are right. But it’s the only time when they tell the truth. Cybercriminals offer to purchase a “Decryptor” and “Unique Decryption Key” that are supposed to help victims of the ransomware:

[…]
After purchasing a software package with the unique decryption key you’ll be able to:
* Decrypt all your files
* Work with your documents
* View your photos and other media content
Continue habitual and comfortable work at your computer
[…]

In the ransom note developers of the Nhtnwcuf virus provide a Bitcoin wallet address where victims should send the ransom. Then, they need to confirm the transaction by sending an email to helptodecrypt@list.ru with “Reference Number” and Bitcoin wallet address. What is interesting, the developers give strict instructions what subject line and content are supposed to be written in the message. As soon as cyber criminals verify this procedure, victims are supposed to get decryption software and key without delays. However, after transferring the ransom, you won’t receive any tools that will help to restore the files. The only thing you can receive from the cyber criminals is another malware and more computer-related programs. As you already know, there’s no way to rescue the files. Thus, you have to remove Nhtnwcuf from the PC without hesitation. For this task, you will need a reputable anti-malware program such as Reimage.

How can I get infected with ransomware?

The first attacks of the Nhtnwcuf ransomware have been spotted on servers. It seems the virus uses brute force attack using Remote Desktop Protocol (RDP).[2] However, it’s doubtful that developers of the virus limit themselves only to one distribution method. It is possible that the virus also spreads via malicious email attachments, malware-laden ads, bogus software updates and downloads, exploit kits, etc.[3] However, we want to remind you to be careful with emails and do not rush opening them. Also, stay away from the strange online ads even if they are delivered on the legitimate websites[4] – they might include malware as well. What is more, be careful when installing software and updates. Torrents, file-sharing websites[5] or ads are potentially dangerous channels for software installation. Lastly, keep all your programs updated because Nhtnwcuf malware or other ransomware might be capable of using these vulnerabilities to launch the successful attack on your PC.

Nhtnwcuf removal procedure

The only safe way to remove Nhtnwcuf from the system without causing more problems is employing professional malware removal tools. We highly recommend choosing Reimage, Malwarebytes Anti Malware or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus for this task. All these programs are capable of eliminating the malware from the system and protecting from other cyber threats in the future. However, the virus might prevent you from installing security tools. In this case, have a look at our prepared instructions below and learn how to disable the virus. Then, you will be able to install anti-malware program and perform the Nhtnwcuf removal. Finally, it might be impossible to restore your files; however, we have prepared three alternative methods that might help to rescue at least some of your files. You will find them at the end of the article.

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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 Nhtnwcuf 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 Nhtnwcuf virus Removal Guide:

Remove Nhtnwcuf 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.

If Nhtnwcuf ransomware prevents you from installing malware removal tools, please follow the instructions below to reboot your PC to the Safe Mode with Networking. When in Safe Mode, try installing the program and scanning the system again.

  • 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 Nhtnwcuf

    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 Nhtnwcuf removal.

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

Remove Nhtnwcuf using System Restore

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

If the previous method hasn’t helped you to perform automatic Nhtnwcuf removal, try this option. Once you reboot your PC, try installing an anti-malware program or scanning the system.

  • 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 Nhtnwcuf. 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 Nhtnwcuf removal is performed successfully.

Bonus: Recover your data

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

If you do not have data backups, your chances to restore your files are very low. However, we suggest trying these three methods presented below. Maybe, they will helps you to bring back at least some of the lost files. 

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

Try Data Recovery Pro to restore files encrypted by Nhtnwcuf virus

Data Recovery Pro tool has already helped many victims of the ransomware to restore their files. Hopefully, this tool help you too.

Try Windows Previous Versions feature to retrieve files encrypted by Nhtnwcuf ransomware

System Restore function allows “traveling back in time.” Thus, if you have activated this feature before Nhtnwcuf attack, you should try to follow these steps. Hopefully, you will manage to copy at least some of the necessary documents.

  • 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”.

Try ShadowExplorer to restore files encrypted by Nhtnwcuf ransomware virus

It is possible that the virus deleted Shadow Volume Copies of the targeted files. However, there’s also a chance that it failed to delete them for some reason. Thus, in this case, you can use ShadowExplorer to recover 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.

Nhtnwcuf decryptor

There’s no free and secure software that can help to decrypt files encrypted by Nhtnwcuf.

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

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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  • Mars

    This one looks horrible. I am going backup my files immediately! Thanks for letting us know about this danger.

  • Alyssa

    Seriously?! Theres no way to decrypt files??

  • cherokee

    Wow… Hackers are horrible people. How could the take the money and do not decrypt the files? Its not fair.