How to remove LockDown ransomware and decrypt .LockDown files

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What is LockDown ransomware?

LockDown ransomware is a new file-encryption virus that infects all important files on a victim’s PC. The main distribution channels of the virus are spam emails, fake Windows updates, and illegal software. Soon after infiltration, all the sensitive data such as documents, videos, and photos get encrypted. Aware of the value of these files, for which people are willing to do much, cybercriminals forces them to pay money. Nevertheless, we advise you not to pay the ransom cost, as there is no guarantee that you get your data back. Instead, you may use our guide to remove LockDown ransomware and decrypt .LockDown files without paying a ransom.

remove LockDown ransomware

Once the encryption procedure is done, you won’t be able to open files with .LockDown extension unless they are decrypted. After that, LockDown ransomware leaves HELP_DECRYPT YOUR FILES.txt file that contains a ransom-demanding message. Cybercriminals are asking to send them $ 460 worth of bitcoins and then email them (help_recouver@protonmail.com) to get the decryption software.


The content of HELP_DECRYPT YOUR FILES.txt file:

Oops All Of your important files were encrypted Like document pictures videos etc..

Don’t worry, you can return all your files!
All your files, documents, photos, databases and other important files are encrypted by a strong encryption.

How to recover files?
RSA is a asymmetric cryptographic algorithm, you need one key for encryption and one key for decryption so you need private key to recover your files. It’s not possible to recover your files without private key.
The only method of recovering files is to purchase an unique private key.Only we can give you this key and only we can recover your files.

What guarantees you have?
As evidence, you can send us 1 file to decrypt by email We will send you a recovery file Prove that we can decrypt your file

Please You must follow these steps carefully to decrypt your files:
Send $460 worth of bitcoin to wallet: 3arsmgdD3tukQ7T7Wk9wZGCk24mU7XRR12
after payment,we will send you Decryptor software
contact email: help_recouver@protonmail.com

Your personal ID: u8xenEhnnEYWM2kC4DvEbETTOJlL1I2mUe/ardcPEYoe2fHeCnp4FlDTzomDHsTOJ1l5VaX3TvNIbZoSPQpE7znYyjc6kdtfgXnIcnZM/K3WfEQ3TzEbKJJIduVXhqpIC30M/9H6rOn9Jt3OrAXENVfXifbNwug27e9Fa7ilzJo=


In the end, it’s up to you to believe it or not, but let us warn you – no one can ensure that they would do their part of the deal. On the contrary, there is a high risk of being deceived and simply left with nothing. The only reliable way to solve the problem is to remove LockDown ransomware from the system using appropriate software in order to stop the malicious actions of the virus and then restore your data from the backup. There are two solutions to remove LockDown Ransomware and decrypt your files. The first is to use an automated removal tool. This method is suitable even for inexperienced users since the removal tool can delete all instances of the virus in just a few clicks. The second is to use the Manual Removal Guide. This is a more complicated way that requires special computer skills.

Screenshot of .LockDown files:

remove LockDown ransomware


How LockDown ransomware gets on my computer?

Cybercriminals use various techniques to deliver the virus to the target computer. Ransomware viruses can infiltrate victims’ computers more than in one or two ways, in most cases, cryptoviral extortion attack is carried out with the help of the following methods:

Brief overview:
NameLockDown
Type of threatRansomware, cryptovirus, file-locking virus
Contacthelp_recouver@protonmail.com
Ransom noteHELP_DECRYPT YOUR FILES
Amount of Ransom$460 in Bitcoin
DistributionSpam email attachments, RDP, pirated software, torrent websites, phishing sites
Removal Tool

In order to completely remove ransomware from your computer, you will need to install an antivirus software. We recommend using Norton Antivirus

Recovery Tool

The only effectvie method to restore files is to copy them from a saved backup. If you don’t have a suitable backup, you may use third-party recover software such as Stellar Data Recovery


How to remove LockDown ransomware?

Recommended Solution:

Try Norton

Norton is a powerful removal tool. It can detect and remove all instances of newest viruses, pop-ups, ransomware or trojans.

Download Norton

for windows

You may find more detailed information about antivirus products in our article – Top 5 Antivirus Software for Windows


Once LockDown ransomware has been successfully removed, you can begin the file decryption procedure.

How to decrypt files infected by LockDown Ransomware?


Method 1. Restore your files with the help of Recovery Tool

Stellar Data RecoveryIn case your PC has been attacked by ransomware, you may restore your files by using file recovery software. Stellar Data Recovery is one of the most effective tools that can recover lost and corrupted files — documents, emails, pictures, videos, audio files, and more — on any Windows device. The powerful scan engine can detect compromised files and finally save them to specified destination. Despite its advancedness, it’s very concise and simple so that even the most inexperienced user can figure it out.

Download Stellar Data Recovery
  1. Run Stellar Data Recovery.
  2. Select type of files you want to restore and click Next.
  3. Stellar Data Recovery

  4. Select the drive and folder where your files are located and date that you want to restore them from and press Scan.
  5. Stellar Data Recovery

  6. Once the scanning process is done, click Recover to restore your files.
  7. Stellar Data Recovery

  8. After this, select a destination and click Start Saving to save restored data.
  9. Stellar Data Recovery

Since new ransomware-type viruses appear almost every day, there is no technical possibility to issue a decryptor for each virus. In this case, the recovery tool comes to the rescue. Despite the fact that this is one of the most effective methods in the absence of a decryptor, this is not 100 percent and not the only way.


Method 2. Restore the system using System Restore

Although the latest versions of LockDown Ransomware can remove system restore files, this method may help you to partially restore your files. Give it a try and use standard System Restore to revive your data. The entire process is preferably carried out in Safe Mode with Command Prompt:

For Windows XP/Vista/7 users:

Restart your computer and before your system starts – hit F8 several times. This will prevent system from loading and will show Advanced boot options screen. Choose Safe mode with Command Prompt option from the options list using up and down arrows on your keyboard and hit Enter.

safe mode with networking

For Windows 8/10 users:

  1. Click the Start button, then select Settings
  2. Click Update & Security, then select Recovery and click Restart now.
  3. After your device reboots, go to Troubleshoot > Advanced options >Startup Settings > Restart
  4. safe mode with Command Prompt

  5. After your PC restarts, you should press F5 key to Enable Safe Mode with Command Prompt.

After the system is loaded in Safe Mode with Command Prompt, do following:

  1. In the Command Prompt window, type cd restore and hit Enter.
  2. system restore

  3. Then type rstrui.exe and hit Enter again.
  4. system restore

  5. Once a new window shows up, click Next.
  6. system restore

  7. Choose the date before the infection appearance and click Next again
  8. system restore

  9. In the opened pop-up window, click Yes to start system restore.
  10. system restore


Method 4. Roll the files back to the previous version

Previous versions can be copies of files and folders created by Windows Backup (if it is active) or copies of files and folders created by System Restore. You can use this feature to restore files and folders that you accidentally modified or deleted, or that were damaged. This feature is available in Windows 7 and later versions.

windows previous versions

  1. Click the ecrypted file and choose Properties
  2. Open the Previous Version tab
  3. Select the latest version and click Copy
  4. Click Restore

How to prevent your system from Ransomware?

No one is safe from infection with a virus that secretly encrypts your data. But in order to minimize this risk, you need to follow the rules:

1. Always make Windows updates on time and keep them up to date. Remember that these updates close the security holes of the system through which the virus can enter your computer.

2. The most efficient way to avoid data loss is of course to make a backup of all important data from your computer. It is enough just to synchronize the necessary folders with one of the cloud services, so as not to be afraid to see the text requiring the payment of bitcoins in exchange for a decryption key. It can be a cloud or a remote hard drive on the network. If you store all your files on the Internet, the likelihood of virus infection will be lower. Do not make copies to external hard drives, as this could damage them.

3. Since spam email is the most popular form of spreading ransomware-type viruses, the user should never open email attachments without first having scanned them with antivirus. Just clicking on the link or opening the attachment can damage the operating system (Windows) in a few minutes, damage important data and infect other machines with the virus.

4. All previous methods do not matter if you do not have a reliable antivirus. The presence of anti-virus protection on your computer can prevent all these unpleasant surprises. Anti-virus software will protect you from malware, money loss, time loss, invasion of your personal life. Now the antivirus market is so huge that it is difficult to make a choice in favor of one of them. If you have not decided who to give preference to, we suggest you familiarize with our Top 5 Antivirus Software for Windows

Author: Ilias

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