Trojan Dz ransomware virus. How to remove? (Uninstall guide)

removal by Ugnius Kiguolis - - | Type: Ransomware
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Trojan Dz demands 0.5 Bitcoins for data recovery

Trojan Dz ransom note

Trojan Dz is a file-encrypting virus that appeared to be a new variant of Cyber SpLiTTer Vbs Ransomware . Malware uses a strong encryption algorithm to take targeted files to hostage and locks them with .Isis file extension.

Following data encryption, Trojan Dz ransomware triggers a ransom-demanding window that starts with the popular phrase: “Oops, Your Files Have Been Encrypted!” The threatening message explains what is data encryption and tells users to send 0,5 Bitcoins to the provided Bitcoin wallet address. Crooks also left a contact email address – mifoudz19@gmail.com.

Once users exchange several hundreds of dollars to unknown decryption software, they are supposed to get back access to their data. However, no one can assure that these statements are true. We do not recommend paying the ransom[1] because authors of Trojan Dz virus might disappear. Keep in mind that the primary purpose of the ransomware is to swindle the money, not help victims.

If you see the ransom note, you should close it immediately and opt for Trojan Dz removal. Elimination of the ransomware will not recover your files. However, this step is crucial to revert system changes made by crypto-malware and try alternative data recovery methods.

Even if you decide to pay the ransom (NOT recommended), the Trojan Dz malware remains installed on the computer. Therefore, malicious processes might be running in the background and later encrypt your files again. This time cyber criminals might ask even more money.

Just like other ransomware-type viruses, Trojan Dz also strengthens its presence by altering Windows Registry, disabling particular processes and installing malicious components. Therefore, in order to use the computer safely again, you have to clean it.

We recommend using Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus for Trojan Dz removal. The instructions how to disable the virus and install security software is presented below. Please follow them carefully and do not try to wipe out ransomware-related files manually. It might end up tragically!

The ways how virus find the way to the computer

Developers of the malware do not rely on only one distribution method. They use a bunch of different methods to hijack devices:

  • spam emails with infected links or malicious attachments;[2]
  • malvertising;
  • bogus downloads and installers;
  • exploit kits.

Most of the time, successful ransomware attack requires user’s participation, such as opening obfuscated document attached in the email or downloading an illegal or fake program. Therefore, users are advised to be careful in order to avoid ransomware attack.

According to the security experts from Germany,[3] even the strongest antivirus can protect the computer from ransomware fully if users misbehave online. Thus, watching your clicks and download sources is a must.

Wipe out Trojan Dz virus from the system

In order to install security program that is necessary for Trojan Dz removal, you have to restart your computer to the Safe Mode with Networking. This mode allows disabling the virus. It’s necessary because ransomware might prevent users from installing or running antivirus.

When in Safe Mode, you will be able to download and install reliable security software, such as Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. If you decide to use another tool, please choose legit download website to avoid installation of malware.

Before you run a full system scan, please update your chosen antivirus or malware removal program. Only an up-to-date tool can remove Trojan Dz from the computer entirely.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove Trojan Dz ransomware virus you agree to our privacy policy and agreement of use.
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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 Trojan Dz 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 Trojan Dz virus Removal Guide:

Remove Trojan Dz 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.

These steps will explain how to reboot the PC to Safe Mode with Networking and run automatic removal:

  • 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 Trojan Dz

    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 Trojan Dz removal.

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

Remove Trojan Dz 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 Trojan Dz. 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 Trojan Dz removal is performed successfully.

Bonus: Recover your data

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

Data Recovery Pro restores corrupted files

Some of the files encrypted by Trojan Dz ransomware virus might be restored with Data Recovery Pro:

Windows Previous Versions feature might be usful

This feature allows accessing previously saved versions of files before the ransomware attack. However, it's possible under one condition. System Restore had to be 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 some of the files

If virus did not delete Shadow Volume Copies, this tool can help you to bring back the important 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.

Trojan Dz Decrypter is not available yet.

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

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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References