Removal Steps For NATIONAL SECURITY BUREAU RANSOMWARE

Threat Analysis For: NATIONAL SECURITY BUREAU RANSOMWARE

 

NATIONAL SECURITY BUREAU RANSOMWARE is a malware designed to intimidate users and encrypt their files to obtain a ransom money. The ransomware even has a screen locking feature that allows it to display ransom note immediately after the attack has been carried out on a system. The display carries a message that the targeted system was found to contain pirated files and applications and hence the system was blocked by the security bureau. However this message is false and has been specifically crafted to alarm users. It states that the affected user need to pay a fine, in order to unblock the encrypted files and restore access. Users should know that the NATIONAL SECURITY BUREAU RANSOMWARE uses this scaring strategy to receive ransom from users. It has been observed that same strategy is routinely used by fake FBI cybercrime viruses. The payload of this ransomware can be identified within the system under a password protected file with the name of 'Win64.Trojan.GreenBug.zip'. The ransomware has been observed to be widely spreading itself using freeware and spam messages. It has also been identified to be similar to Virlock ransomware family.

NATIONAL SECURITY BUREAU RANSOMWARE has been found to be capable of making changes in Windows Registry that allows it to remain within the system for long. It can relaunch itself every time the system boots so that users cannot carry out any other operations within their system. The ransomware has been found to add extension '.exe' to files of various formats such as images, audio, video, texts, documents, database, archives and backups. The files however are not encrypted but get converted into a portable executables. NATIONAL SECURITY BUREAU RANSOMWARE can delete shadow volume copies from windows operating system that makes it difficult to obtain files from backups. The ransom display however informs users that their files have been encrypted and they need to pay an amount of 0.661 BTC to restore their files. This contradicts to 250 USD that gets displayed earlier in the text of the ransom window. This may suggest that this ransomware was developed quite earlier when bitcoins were comparatively cheaper. Still, affected users should not respond to such fake and malicious messages as they can remove the ransomware using the steps shown here.

Free Scan your Windows PC to detect NATIONAL SECURITY BUREAU RANSOMWARE

Remove NATIONAL SECURITY BUREAU RANSOMWARE From Your PC

Step 1: Remove NATIONAL SECURITY BUREAU RANSOMWARE in Safe Mode with Command Prompt

• First of all disconnect your PC with network connection.
• Click restart button and keep pressing F8 key regularly while system restart.

• You will see “Windows Advanced Options Menu” on your computer screen.

 

• Select “Safe Mode with Command Prompt” and press Enter key.

• You must login your computer with Administrator account for full privilege.

• Once the Command Prompt appears then type rstrui.exe and press Enter

• Now follow the prompts on your screen to complete system restore.

Step 2: Remove NATIONAL SECURITY BUREAU RANSOMWARE using MSConfig in Safe Mode:

• Power off your computer and restart again.
• While booting press the “F8 key” continuously to open “Windows Advanced Options Menu”.

• Use the arrow keys to select “Safe Mode” option and press Enter key.

• Once system get started go to Start menu. Type “msconfig” in the search box and launch the application.

• Go to the Startup tab and look for files from %AppData% or %Temp% folders using rundll32.exe. See an example below:

C:\Windows\System32\rundll32.exe C:\Users\username\appdata\local\temp\regepqzf.dll,H1N1

• Disable all the malicious entries and save the changes.
• Now restart your computer normally.

Step 3 : Kill Malicious Process Related To NATIONAL SECURITY BUREAU RANSOMWARE

• Press Alt+Ctrl+Del buttons together.

• It will open the Task manager on your screen.
• Go to Process Tab and find NATIONAL SECURITY BUREAU RANSOMWARE related process.
• Click the End Process Now button to stop the running process.

Step 4 : Remove NATIONAL SECURITY BUREAU RANSOMWARE Virus From Registry Entry

• Press “Windows + R” key together to open Run Box.

• Type “regedit” and click OK button.

• Find and remove NATIONAL SECURITY BUREAU RANSOMWARE related entries.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServicesOnce

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Runonce

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServices

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run

Now hopefully you have completely removed the NATIONAL SECURITY BUREAU RANSOMWARE virus from your computer. If you are still get ransom message from the threat or unable to access your files, then it means that virus still remain into your computer. In such situation you don’t have any other option except removing this virus using any powerful malware removal tool.

Whereas if you have any backup of your infected or encrypted files, then you can also reinstall your Windows OS. This will erase all your files and data as along with the NATIONAL SECURITY BUREAU RANSOMWARE infection. You will get a completely empty computer system with no files. Now you can use your backup to get your files. If you don’t have any backup then using malware removal tool is a better option for you.

If you have any query or question regarding your computer, then you can easily ask your problem to our experts. Go to the Ask Any Question page and get the answer for your query directly from out experts.