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

removal by Olivia Morelli - - | Type: Ransomware
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Nelocker virus appears to be ransomware written in JavaScript

Nelocker virus is a noxious software example that is used to encrypt files on a target computer and demand a ransom payment. This virus is developed by the same criminal who has been working on Kovter and Miuref Trojan distribution. Lately, the criminal started delivering malware via email spam, which typically carries Label_[random numbers].zip attachment. If the victim opens this .ZIP file and double-clicks on an identically named .js file, Nemucod Trojan gets installed, and it compromises the system by launching two executable files. Now the criminal has improved Nemucod Trojan and uses 7ZIP and PHP command line utilities to encrypt victim’s data. After encrypting victim’s files, Nelocker ransomware creates a text file that explains what happened to the personal data.

ATTENTION!
All your documents, photos, databases and other important personal files were encrypted using strong RSA-1024 algorithm with a unique key.
To restore your files you have to pay 0.48307 BTC (bitcoins).

Screenshot of Nelocker malware

The virus employs a legitimate program 7ZIP to encrypt files on victim’s computer drives. It targets a wide range of file types, uses a randomly generated password and AES-256 encryption to corrupt data, and then sends the password to a C&C server (the same one that malware was downloaded from). Moreover, malware researchers have discovered that the Trojan downloads a PHP file and a legal PHP command line tool. In this case, Nelocker malware employs PHP command line tool to run an obscure PHP file. This file scans drivers and encrypts target files with XOR cipher. However, no matter how confusing this explanation sounds, we have some good news for you. There is a tool that can decrypt files encrypted by Nelocker ransomware. You should firstly scan the system with a tool like Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus and remove Nelocker virus and related malware for good. After successful Nelocker removal, start the decryption procedure.

Dissemination of this virus

Computer users should stay away from malicious emails that the author of this malware spreads via email spam. Below, you can see some examples of email attachments that the perpetrators distribute.

  • 000534364.zip
  • FedEx_ID_00000435461.zip
  • 00000875525.doc.js
  • Label_00684596.doc.js
  • FedEx_ID_00000432471.doc.js

If you receive an electronic letter from unknown individual – do not open it. As you can see, examples above show that criminals tend to hide the original .js file extension by adding a safe-looking file extension to the filename (for instance, .doc). Do not be deceived! Besides, such dangerous malware is actively distributed via exploit kits, so stay away from questionable websites, avoid clicking on ads in gambling and adult-content sites, and never explore content of emails that your email provider filters as “Spam.” Your computer system should always be guarded by an up-to-date anti-malware software, too. Creating backups is always a good idea, so create them and keep them in safe place so that you could use them in case ransomware manages to enter your computer system.

Nelocker removal tips

You can remove Nelocker virus along with Nemucod Trojan and related malware using anti-malware tools. If your computer has been infected with such type of malware, you should clean the system immediately. It is very dangerous malware that can spy on you and collect sensitive data, add additional malware and destroy your personal files, so please do not try to delete this virus manually. This way, you will do more harm than good. Start Nelocker removal procedure by restarting your computer and loading it in a Safe Mode with Networking.

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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 Nelocker 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 Nelocker virus Removal Guide:

Remove Nelocker 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.

  • 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 Nelocker

    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 Nelocker removal.

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

Remove Nelocker 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 Nelocker. 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 Nelocker removal is performed successfully.

Bonus: Recover your data

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

Use Nemucod Decrypter to restore data

You can restore your files using Nemucod Decryptor. Download this tool here. To decrypt files, you need to have an encrypted copy of a file (size of at least 510 bytes) and an original copy of it. Select both files and drag them to the decrypter.

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

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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  • Kostner

    This one seems sophisticated…

  • Hailie

    Its so scary. You can use an infected computer and not even know that its infected. I feel that malware industry evolves too fast…

    • Lucy

      I know right? Even with anti-malware software I dont feel safe. Im afraid to click on certain links, watch videos, but i guess im just being paranoid. or maybe not. No idea

  • Razorblades

    I think my computer might be infected with this…