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NxRansomware virus. How to remove? (Uninstall guide)

removal by Gabriel E. Hall - - | Type: Ransomware

Why was NxRansomware virus developed?

The NxRansomware virus is an open-source ransomware project that has been posted on GitHub[1] in spring 2016. Developer Guilherme Bacellar Moralez created it for the research purposes only. What is more, he also prohibited others of using this code for other purposes. According to the researcher, the virus might be extremely dangerous and cause tremendous damage. NxRansomware is written in .Net Framework + C&C System, and is called as the next generation of ransomware. One of the objectives of this ransomware is to prove that it is possible to write a file-encrypting virus using the .Net Framework.[2] The researcher also wanted to create ransomware which wouldn’t be detected by antivirus programs, and provide security software developers of this code. Thus, security experts could prepare for the possible threats caused by the evolving ransomware projects. Apart from that NxRansomware malware was created in order to understand ransomware operation principles. The researcher aimed to build a modern Command and Control (C&C)[3] system and a safe communication channel between the virus and C&C server without using SSL certificates.[4]

The NxRansomware is designed to encrypt files running GoogleUpdate.exe binary file. It uses an AES and RSA encryption ciphers which are widely used by ransomware developers. Files strengthen by these algorithms are nearly impossible to break without a specific decryption key. The virus is designed to attack the most popular file types such as MS Office and OpenOffice documents, PDF and text files, various image, audio, video and other multimedia files, databases, archives, and more. It seems that G. B. Moralez managed to develop a hazardous cyber infection. Fortunately, it has been created for research purposes, so there’s no need to worry about NxRansomware removal options. However, this open-source project might be an inspiration for the cyber criminals who are willing to threaten online community with a new generation virus. Although the authors prohibited of using this code for wicked purposes, this might not stop evil-minded hackers. Bear in mind, that if you someday need to remove NxRansomware or on its code based ransomware, use professional anti-malware program such as Reimage. As we mentioned in the first paragraph, the researcher shared information with security companies how to protect computers from this kind of extortionist.

How does ransomware spread?

Fortunately, the NxRansomware virus is not a threat to computer users. The virus is not distributed widely, and the developer does not launch any malicious campaigns. However, we want to remind that it’s important to apply few safety tips[5] on your daily life in order to avoid meeting hazardous cyber threats. File-encrypting viruses are mostly spread with a help of malicious email attachments. Thus, when you click on obfuscated invoice, CV, statement or other “important” document, you might install a malicious payload. Therefore, before opening files sent by unknown people, you need to double-check the information and click on it only if you are 100% sure that it’s safe to do it. Malware might also infiltrate the system using malware-laden ads, fake updates, bogus downloads, exploit kits, and web injections. Thus, you need to avoid clicking on questionable online ads, choose reliable sources for software downloads and updates, keep all your programs up-to-date, and avoid visiting high-risk websites.

How to remove NxRansomware?

Although this open-source ransomware does not spread, some shady people might use its code and spread similar viruses. Therefore, you should know that the only safe way to remove NxRansomware is using professional malware removal programs such as Reimage or Malwarebytes Anti Malware. Eliminating this dangerous pest manually is not recommended. In general, manual malware elimination requires high skills and experience; thus, regular computer users are not capable of safely delete all malicious files themselves. That’s why additional software is needed. What is more, NxRansomware removal won’t recover encrypted data. For that, you need to use backups or try alternative data recovery methods.

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Manual NxRansomware virus Removal Guide:

Remove NxRansomware using Safe Mode with Networking

If malware blocks access to the security tools or prevents from installing them, reboot PC to the Safe Mode and try 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 NxRansomware

    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 NxRansomware removal.

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

Remove NxRansomware using System Restore

System Restore is another method that allows disabling the virus and performing its removal with a help of antivirus program.

  • 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 NxRansomware. 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 NxRansomware removal is performed successfully.

Bonus: Recover your data

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

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

Data Recovery Pro might restore files encrypted by NxRansomware virus

Data Recovery Pro is a professional tool that helps to restore deleted, corrupted or restored files. Thus, if you do not have data backups, this tool might help to retrieve some of the decrypted files.

Windows Previous Versions feature can help to restore files encrypted by NxRansomware

Windows Previous Versions feature allows traveling back in computer’s time and copying earlier saved versions of the encrypted files. This method only works if System Restore function was enabled before ransomware attack.

  • 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 restore files encrypted by NxRansomware malware

ShadowExplorer can restore files from Shadow Volume Copies of the encrypted files. However, if malware deleted them, there’s no way to use this tool and recover your files.

  • Download Shadow Explorer (;
  • 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.

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

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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  • Hendron

    I hope hackers wont decide to use this code…

  • Grant

    This looks like a serious piece of malware. Researcher did an excellent job!

  • dot

    Well, its been a year since this code has been posted on Github, and I havent heard about virus based on NxRansomware. I bet its too difficult for the hackers to copy it.