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QNBQW ransomware. How to remove? (Uninstall guide)

removal by Ugnius Kiguolis - - | Type: Ransomware

QNBQW  — a ransomware virus that blocks access to your data

QNBQW ransomware virus
QNBQW ransomware is a crypto-virus that demands ransom
QNBQW is a crypto-virus that came to researchers’ attention at the beginning of June 2018. It uses AES-256 cryptography to make files on the affected computer useless. This ransomware activity is for money extortion because virus developers demand the ransom once all files are locked with .qnbqw extension. Immediately after this, the virus places a ransom message in Notice.txt file. 

Type  Ransomware 
Danger level   High. Encrypts data and demands ransom
Ransom note   Notice.txt
Extension   .qnbqw
Distribution   Insecure email attachments
Elimination  Best tool for ransomware removal is Reimage

Ransom message often contains information about preferred payment method and ransom amount, instructions for creating accounts on cryptocurrency[1] sites and other file decryption offers. This time QNBQW virus developers have nothing much to say to the victims. Information in the ransom note only contains a contact email “” and victims ID, which includes almost 700 characters:

Your files is encrypted using the WAS the AES-256 algorithm. Write me to e-mail: to get your decryption key.
USERKEY Your: op1g5NxV…

As you can see, there is no information about ransom amount. Therefore, victims of QNBQW might be asked to transfer a different sum of money based on how fast they contact criminals or the size of the encrypted files. However, we do not recommend contacting them in order to avoid further possible problems.

QNBQW removal should be done quickly because any contact between victims and cybercriminals cannot give positive results. These virus developers often ignore their victims after the payment is done and they might have no alleged decryption tool. All of this is done to only extort money from you. So you need to focus on the virus elimination and just after your system is clean think about file recovery.

Virus researchers form[2] highly recommend using professional tools for ransomware elimination. Our team suggests victims to remove QNBQW ransomware using Reimage, but feel free to chose any other proffesional software. Using security program is the best way to ensure that any ransomware related programs and tools are deleted properly. If you insert an external drive with backup files to a computer that is not cleaned yet you can lose your data permanently. 

Emails can have harmful attachments: be careful before opening them

You probably already spotted those emails from suspicious addresses or containing questionable information. Spam email box often has legitimately looking letters that came from companies you might know but do not use. These letters may seem genuine and contain safe-looking files like Word documents. But these might be filled with malicious macro commands [3] and install malware on the system unknowingly.

Being careful with received emails is essential. Especially from the spam/commercial box. Delete them and never open those attachments. Opening and purchasing something from those ads can lead to infections and more significant problems with your PC.

To make sure that your files are safe from malware, you need to create backups. If you have your most important files on another drive you can restore them after an attack.

QNBQW ransomware elimination need to be done as soon as possible

To remove QNBQW ransomware, you should rely on professional programs and tools that can clean the whole system. This could help to remove any ransomware relating content and keep your system safe again. Viruses come with other malicious tools and programs, so you need to do a full system scan to get rid off all of them. If you leave any of those threats on your computer, you cannot be sure that ransomware would repeat the attack.

Your files might be encrypted again if there is something malicious left on your computer. So, perform QNBQW ransomware removal first and only then focus on file recovery. There is no decryption tool, so the only way to recover your files is replacing them form a backup. This is the safest way, but we also have a few suggestions down below for decryption tools. Also, we can recommend Reimage, Malwarebytes and Plumbytes Anti-MalwareNorton Internet Security for initial virus removal.

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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.
More information about this program can be found in Reimage review.

If you decided to select another anti-spyware, uninstall Reimage from your computer.
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To remove QNBQW virus, follow these steps:

Remove QNBQW using Safe Mode with Networking

When affected by ransomware, first thing you can do is reboot your system in Safe Mode with Networking to pereform smooth virus elimination

  • 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 QNBQW

    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 QNBQW removal.

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

Remove QNBQW using System Restore

Also, you can use System Restore feature to get rid of the virus:

  • 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 QNBQW. 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 QNBQW removal is performed successfully.

Bonus: Recover your data

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

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

Data Recovery Pro is a tool for file restoration

If you accidentally deleted your own files or your data got encrypted by QNBQW ransomware you can use Data Recovery Pro

  • 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 QNBQW ransomware;
  • Restore them.

Windows Previous Versions feature is a good option if you want to restore individual files

You can use Windows Previous Versions if System Restore feature was enabled beforehand

  • 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 can be helpful in file recovery

If you got lucky and QNBQW ransomware have not deleted your Shadow Volume Copies you can restore your data using ShadowExplorer

  • 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.

Unfortunately, decryption tool is not available

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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