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Jemd ransomware. How to remove? (Uninstall guide)

removal by Ugnius Kiguolis - - | Type: Ransomware

Jemd ransomware is a crypto virus that is usually distributed with the help of malicious spam email attachments

Jemd ransomware
Jemd ransomware is a file locker that was spotted in mid-December. Nevertheless, malware has multiple flaws.

Jemd ransomware is a file locking malware that was first spotted by the independent security researcher GrujaRS[1] on December 16th, 2018. It uses AES[2] encryption algorithm to lock up files and then demands a ransom to be paid in Bitcoin cryptocurrency. Jemd virus stems from DelphiRansomware which is a relatively new infection, discovered just a month ago. It is unknown what type of extension the malware uses to encrypt data, but users can view Recovery.txt file that explains victims that they have to contact hackers via the rezko@prottykon.mit.edu email address. Fortunately, a relatively weak script has multiple flaws, and users can fully recover their data via System Restore feature.

Summary
Name Jemd ransomware
Type Crypto virus
Cipher used AES
Related DelphiRansomware/InducVirus/Delphimorix
Contact email rezko@prottykon.mit.edu
Infiltration Unsafe sites, phishing emails, weak RDP, etc.
Elimination Use anti-virus software like Reimage

According to VirusTotal analysis, 30 AV engines detect Jemd ransomware. Therefore, we suggest you use Reimage security software (based on Avira engine) to block the incoming infection. Because the malicious file is detected, Jemd ransomware removal can also be performed with the mentioned security software.

Jemd virus is usually propagated using the following methods:

  • Spam emails;
  • Exploit kits;[3]
  • Software vulnerabilities;
  • Brute-force attacks;
  • Infected installers;
  • Torrent files;
  • Fake updates, etc.

There are several ways you could prevent the infiltration of the cyber threat, and we explain it in the second section of the article. Nevertheless, if your machine is infected, you will have to remove Jemd ransomware from your PC before proceeding with file recovery procedure.

The safest way to retrieve encrypted data is by using backups that were made before the infection occurred. Unfortunately, not all people actually do backups and end up regretting the decision. However, according to a Twitter post, users can restore all their files by performing System Restore, as the ransomware has several bugs in it. Additionally, victims can try using third-party software that could help with data recovery.

Here's what the ransom note Recovery.txt states:

<><><><><><>jemd<><><><><><>
All your files were encrypted by jemd.
Used a AES encryption.
AES a best algorytm. If you – gruja, decryption inpossible
Contact us: rezko@prottykon.mit.edu 
<><><><><><>jemd<><><><><><>
Personal id:

While some users might consider contacting hackers, experts[4] agree that it is not a wise decision to make. First of all, there is no guarantee that crooks will send the decryption key back, so money loss is probable. Additionally, paying criminals will only encourage them to perform illegal acts in the future.

Avoid ransomware by being careful online

As we already mentioned, there are several different ways ransomware can infiltrate machines. While in some cases cybercrooks choose social engineering and deception to install the malware, in other cases they rely on users who are using weak passwords or unpatched systems. 

There are several precautionary measures you can practice. Of course, no method is 100% secure, but following these tips will reduce the chance of infection significantly:

  • Install reputable security software with real-time scanning feature;
  • Use strong passwords for all your accounts (we suggest using password manager) and protect your RDP with a VPN;
  • Do not rush through your inbox when reading new emails. While built-in scanners can flag some malicious messages and send them into the Spam box, some phishing emails can get into your Inbox. Therefore, do not carelessly open attachments or click on links;
  • Patch your system and software as soon as the new updates are ready to be installed – it will protect hackers from abusing bugs in software to infect your system;
  • Avoid high-risk websites and do not download any cracks, repacked software, and similar.

Get rid of Jemd ransomware and proceed with file recovery

If you cannot access your files and you read the Recovery.txt ransom message, do not panic. As we already mentioned, Jemd virus has plenty of flaws, and it will greatly help with dealing with it. To remove Jemd ransomware, you should download security software that can detect the infection – we suggest using Reimage. You then should enter Safe Mode with Networking, as explained below, and then perform a full system scan.

After Jemd ransomware removal, you can proceed with file recovery. We suggest first trying System Restore in case you do not have backups ready. Alternatively, you can use file recovery software that might help you.

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What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. 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.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove Jemd virus, follow these steps:

Remove Jemd using Safe Mode with Networking

To remove Jemd ransomware virus, you should enter Safe Mode with Networking as explained here:

  • 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 Jemd

    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 Jemd removal.

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

Remove Jemd using System Restore

System Restore might not only stop the malware, but also restore your file. So we highly recommend this method:

  • 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 Jemd. 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 Jemd removal is performed successfully.

Bonus: Recover your data

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

Data Recovery Pro might be able to help you to recover files

Data Recovery Pro is a professional software designed to recover files that were accidentally deleted or otherwise corrupted. However, users noticed that it can also help to recover data encrypted by ransomware.

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by Jemd ransomware;
  • Restore them.

Try Windows Previous Versions feature

This method can only be used if System Restore was enable before the Jemd virus struck the system.

  • 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 is a great help

In case the ransomware failed to remove Shadow Volume Copies, the best solution is to use ShadowExplorer which will be able to recover all of your data.

  • 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.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Jemd and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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