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JCoder ransomware. How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Ransomware
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JCoder ransomware has just received an update

JCoder ransomware virus image

JCoder virus is a malicious program designed to encrypt data on the targeted system. Initially, the ransomware travels as J-Ransomware.exe file and appends .petya file extension. However, cybersecurity experts have recently spotted a new version of the malware which uses .MTC extension and aims to infect users from Vietnam.

JCoder applies either RSA or AES ciphers to make the most widely used files inaccessible[1]. These documents include pictures, video and audio files, archives, etc. The algorithmic encryption method is a complicated process. Likewise, to recover the encoded data, the user has to receive a unique decryption key.  

Even though the amount of the JCode ransom is currently unknown, we do not recommend trusting the criminals. They might either swindle enormous amounts of money from you or infiltrate other high-risk computer infections to damage your PC permanently. 

Therefore, we encourage you to remove JCoder as soon as you notice its presence. Use Reimage to help you do it quickly and safely. Although, you can use any other reliable antivirus program of your choice. Furthermore, head straight to the end of this article and follow the elimination instructions which will guide you through the process. 

Additionally, do not try to purchase various third-party decryptors online. Note that they might be useless and high-cost products which scammers offer to trick gullible people into believing that they might help to restore files. Perform JCoder removal under a professional supervision and try to recover the encrypted data with verified tools only. 

New version of the ransomware has emerged on the cyberspace

JCoder virus has recently received an update — a new variant which is known as shosvt.exe appends .MTC file extension and drops a [foldername]WanaCry 0.2.ini ransom note in the Vietnamese language. The translated message says the following:

Hello. Your files have been encrypted, and you cannot use them.
If you want to be able to access them again, please contact us on Facebook!

hxxps://www.facebook.com/khuong.thanhtung.75 

You should not delete any files which have been encrypted. 
You only have about 2 days to send money (100K) or the data will be deleted.
The amount will rise day by day.

Hope you are OK.

Once again, we want to remind you that paying this amount of the ransom is more than foolish[2]. You can easily get tricked and left without a decryption key. Thus, remove JCoder virus without any hesitation and head straight to the decryption guide which is at the end of this article.

Ransomware infiltrates via spam emails or drive-by downloads

Even though people are regularly informed about the dangers which might hide inside the spam emails, it is still the most common distribution method employed by hackers. Naive computer users are tricked to open a malicious attachment which is programmed to drop the executable file of the ransomware. 

Criminals invest considerable amounts of time to create genuine-looking emails. They often imitate legitimate companies and send fake invoices to lure people into clicking on them. However, you should always carefully check which letters to open and which ones to delete.

Additionally, those who are used to download music, films or videos online illegally should be cautious of ransomware attack as well. Criminals might upload their malicious files on peer-to-peer (P2P) networks where inexperienced computer users manually download and install malware which disguises the appearance of a legitimate program. 

Learn how to perform JCoder elimination

If you have finally decided to remove JCoder, you should understand that this type of virus can only be eliminated by a professional or a security software. Any attempts to delete the malware manually will probably harm your computer or lead to other consequences, such as data loss, exposure of private information, etc. 

Therefore, if you want to do it quickly, experts from Losvirus.es[3] say that JCoder removal requires you to employ an antivirus tool. Pick Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus, or Malwarebytes Anti Malware, and it will help you to clean your system within several minutes. Additionally, note that this is not a one-time investment, the security software will serve you for years by ensuring ransomware-free system. Therefore, do not even hesitate and start the elimination procedure.

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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 JCoder 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 JCoder virus Removal Guide:

Remove JCoder using Safe Mode with Networking

Start JCoder removal by booting your PC into Safe Mode with Networking.

  • 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 JCoder

    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 JCoder removal.

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

Remove JCoder using System Restore

If you are still unable to download an antivirus program, reboot your computer to Safe Mode with Command Prompt.

  • 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 JCoder. 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 JCoder removal is performed successfully.

Bonus: Recover your data

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

Data Recovery Pro tool might be the solution

You can try to decrypt files with .petya or .MTC extension with the help of this professional program.

Try Windows Previous Versions Feature

In case you have enabled System Restore function before JCoder reached your PC, you are safe to try retrieve your most important data:

  • 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”.

Recover files with ShadowExplorer

If the Shadow Volume Copies are still present on your computer, follow the instructions below:

  • 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.

Currently, there is no decryptor for JCoder ransomware

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from JCoder 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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