What is Bk666 ransomware? And how does it carry out its attack?

Bk666 ransomware is a new variant of Dharma ransomware that’s created to lock important data in a targeted computer. This new Dharma variant uses a “.bk666” extension in marking the files it encrypts, hence the name. Once this crypto-malware obtain access to a targeted machine, they will install Bk666 ransomware in the system. After that, it will start to make changes in the system in order to carry out its attack. It may modify some registry keys and entries in the Windows Registry allowing it to run automatically on every system boot. It then scan the computer for its targeted files and encrypt them using a sophisticated encryption algorithm. After the encryption, it appends the .bk666 extension to each one of the affected files and opens a program window that contains the following ransom note:
“All your files have been encrypted!
All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail
[email protected]
Write this ID in the title of your message 1E857D00
In case of no answer in 24 hours write us to theese e-mails:[email protected]
You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.
Free decryption as guarantee
Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)
How to obtain Bitcoins
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click ‘Buy bitcoins’, and select the seller by payment method and price.
Also you can find other places to buy Bitcoins and beginners guide here:
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.”
If you suddenly find your files encrypted with the Bk666 ransomware, you must not, under any circumstance, contact the crooks behind this crypto-malware as it would only be a waste of money and time. The best way to deal with such threats is to wipe out its processes in the infected computer and try to restore encrypted files using an alternative method.
How is the malicious payload of Bk666 ransomware disseminated online?
The malicious payload of Bk666 ransomware may be disseminated using malicious spam email campaigns. Aside from that, it could also spread via Remote Desktop Services that are connected to the internet. This is why you have to use good computing habits and security software on your computer to protect yourself from these kinds of cyber threats. In addition, you must also have a reliable and tested backup for your important files just in case something like this happens again.
Wipe out Bk666 ransomware from your computer with the help of the removal instructions provided below.
Step 1: You need to first close the program window of Bk666 ransomware labeled “[email protected]”. However, if you can’t close it, you can end its process as well as other malicious processes of Bk666 ransomware via the Task Manager. Simply tap the Ctrl + Shift + Esc keys to open it.
Step 2: Next, go to the Processes tab and look for the malicious process of Bk666 ransomware named “exp1mod.exe” and other suspicious-looking processes and then right click on each one of them and select End Process or End Task.

Step 3: Close the Task Manager and open Control Panel by pressing the Windows key + R, then type in “appwiz.cpl” and then click OK or press Enter.
Step 4: Look for dubious programs that might by related to Bk666 ransomware and then Uninstall it/them.

Step 5: Close Control Panel and then tap Win + E to launch File Explorer.
Step 6: After opening File Explorer, navigate to the following directories below and look for Bk666 ransomware’s malicious components such as exp1mod.exe and [random].exe and other suspicious-looking files and then erase them all.

  • %TEMP%
  • %USERPROFILE%\Downloads
  • C:\ProgramData\local\

Step 7: Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name], this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then by all means go on to the next steps.
Step 8: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step 9: Navigate to the listed paths below and look for the registry keys and sub-keys created by Bk666 ransomware.

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
  • HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization
  • HKEY_CURRENT_USER\Control Panel\Desktop\ScreenSaveTimeOut
  • HKEY_CURRENT_USER\Control Panel\Desktop

Step 10: Delete the registry keys and sub-keys created by Bk666 ransomware.
Step 11: Close the Registry Editor.
Step 12: Empty your Recycle Bin.
Try to restore your computer to its previous state using System Restore
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if Tellyouthepass ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the encrypted file, right-click on it and select Properties, a new window will pop-up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.

Once you’re done executing the steps given above, you need to continue the removal process of Bk666 ransomware using a reliable program like [product-name]. How? Follow the advanced removal steps below.

  1. Turn on your computer. If it’s already on, you have to reboot it.
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.

  1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
  2. Windows will now load the Safe Mode with Networking.
  3. Press and hold both R key and Windows key.

  1. If done correctly, the Windows Run Box will show up.
  2. Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
  3. After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
  4. Once the installation process is completed, run [product-code] to perform a full system scan.

  1. After the scan is completed click the “Fix, Clean & Optimize Now” button.

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