NATIONAL SECURITY BUREAU Virus Removal - Restore .exe Files

NATIONAL SECURITY BUREAU Virus Removal – Restore .exe Files

This article will aid you to remove NATIONAL SECURITY BUREAU virus efficiently. Follow the ransomware removal instructions provided at the end of the article.

NATIONAL SECURITY BUREAU is a cryptovirus that also features a screenlock function. The virus encrypts your files and demands money as a ransom to get your files restored. Files will receive the .exe extension as they are turned into PEs (Portable executable files). The NATIONAL SECURITY BUREAU ransomware will show a ransom note message inside a window screen. Keep on reading the article and see how you could try to potentially recover some of your locked files.

Threat Summary

TypeRansomware, Cryptovirus
Short DescriptionThe ransomware encrypts files by placing the .exe on your computer system and demands a ransom to be paid to allegedly recover them.
SymptomsThe ransomware will encrypt your files and leave a ransom note message with payment instructions inside a window screen that can also be triggered as a screenlocker.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by NATIONAL SECURITY BUREAU Virus


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss NATIONAL SECURITY BUREAU Virus.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.


The NATIONAL SECURITY BUREAU ransomware might distribute itself via different tactics. A payload dropper which initiates the malicious script for this ransomware is being spread around the World Wide Web, and researchers have gotten their hands on a malware sample. If that file lands on your computer system and you somehow execute it – your computer device will become infected.

In the screenshot given below, you can see the payload of the ransomware being detected by multiple security engines on the VirusTotal service:

Malware researchers also note that the payload will be dropped inside a password-protected file with the name of “” in most cases.

Freeware which is found on the Web can be presented as helpful also be hiding the malicious script for the cryptovirus. Refrain from opening files right after you have downloaded them. You should first scan them with a security tool, while also checking their size and signatures for anything that seems out of the ordinary. You should read the tips for preventing ransomware located at the corresponding forum thread.


NATIONAL SECURITY BUREAU is a virus that encrypts your files and opens a ransom note, with instructions inside it, about the compromised computer machine. The extortionists want you to pay a ransom fee for the alleged restoration of your files. According to malware analysis samples, the cryptovirus might be from the Virlock ransomware family.

NATIONAL SECURITY BUREAU ransomware might make entries in the Windows Registry to achieve persistence, and could launch or repress processes in a Windows environment. Such entries are typically designed in a way to start the virus automatically with each boot of the Windows Operating System.

After encryption the NATIONAL SECURITY BUREAU virus shows the following ransom message inside a window screen:

The ransom message states the following:

Your computer was automatically blocked. Reason: Pirated software found on this computer.

Your computer is now blocked. 02 files have been temporarily blocked on your computer.To regain computer access and restore you are required to pay a fine of 250 USB Blocked files will be permanently removed from your computer if the fine is not paid. The NSB has two ways to pay a fine:
1. You can pay your fine online through BitCoin. Bitcoin is available nationwide. Click the tabs below to find the nearest vendor. Your computer will be unlocked after you make your payment.
2. You can come to your provincial courthouse and pay your fine at the Cashiers window.
your computer will be unlocked within 4-5 working days.
To regain access transfer bitcoins to the following address (click to copy): 198tX7NmLg6o8qcTT2Uv9cSBVzN3oEozpv
After the payment is finalised enter Transfer ID below.
Amount 0.661 BTC
If the fine is not paid, a warrant will be issued for your arrest, which will be forwarded to your local authorities. You will be charged, fined, convicted for up to 5 years.

If you explore that screen further you will see multiple other pages which are meant to educate victims about what is BitCoin and how it can be obtained both virtually and from ATMs.

The note of the NATIONAL SECURITY BUREAU ransomware virus states that your files are encrypted. You are demanded to pay “0.661 BTC” to allegedly restore your files. However, you should NOT under any circumstances pay any ransom sum. Your files may not get recovered, and nobody could give you a guarantee for that. Adding to that, giving money to cybercriminals will most likely motivate them to create more ransomware viruses or commit different criminal activities. That may even result to you getting your files encrypted all over again after payment.

NATIONAL SECURITY BUREAU Ransomware – Encryption

The encryption process of the NATIONAL SECURITY BUREAU ransomware rather simple – every file that gets encrypted will become simply unusable. Files will get the .exe extension after being locked. The newly added extension will be added as a secondary one, without changing the original, nor the file name. However, the new files will be regarded as PEs – portable executables.

A list with the targeted extensions of files which are sought to get encrypted is currently unknown. However, if the list becomes available, the article will get updated accordingly.

The files used most by users and which are probably encrypted are from the following categories:

  • Audio files
  • Video files
  • Document files
  • Image files
  • Backup files
  • Banking credentials, etc

The NATIONAL SECURITY BUREAU cryptovirus could be set to erase all the Shadow Volume Copies from the Windows operating system with the help of the following command:

→vssadmin.exe delete shadows /all /Quiet

In case the above-stated command is executed that will make the effects of the encryption process more efficient. That is due to the fact that the command eliminates one of the prominent ways to restore your data. If a computer device was infected with this ransomware and your files are locked, read on through to find out how you could potentially restore some files back to their normal state.

Remove NATIONAL SECURITY BUREAU Virus – Restore .exe Files

If your computer system got infected with the NATIONAL SECURITY BUREAU ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

Tsetso Mihailov

Tsetso Mihailov

Tsetso Mihailov is a tech-geek and loves everything that is tech-related, while observing the latest news surrounding technologies. He has worked in IT before, as a system administrator and a computer repair technician. Dealing with malware since his teens, he is determined to spread word about the latest threats revolving around computer security.

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