How to remove Lockfile (MedusaLocker) Ransomware and decrypt .lockfile files

What is Lockfile Ransomware

Lockfile Ransomware, also known as MedusaLocker, is a type of malicious software that encrypts files on infected systems, rendering them inaccessible to users. Once executed, it infiltrates the computer’s files and appends the .lockfile extension to the encrypted files. This means that a document initially named report.docx would appear as report.docx.lockfile, making it clear to victims that their data has been compromised. Lockfile ransomware employs advanced encryption algorithms, specifically a combination of RSA and AES methods, to ensure that recovering files without a decryption key is nearly impossible. Once the encryption process is complete, the ransomware generates a ransom note titled HOW_TO_RECOVER_DATA.html, which is typically created in the same directory as the encrypted files. In this note, attackers detail the steps victims must take to pay the ransom, often in cryptocurrency, in exchange for the decryption key necessary to unlock their files.

Searching for reliable decryption tools for Lockfile ransomware can be a challenging endeavor. Unfortunately, no widely available decryption tools exist that can effectively restore files locked with the .lockfile extension. Many victims are left with few options and often feel pressured by the ransom demands outlined in the HOW_TO_RECOVER_DATA.html note. Paying the ransom may seem like the quickest solution, but numerous incidents have shown that victims frequently do not receive the promised decryption tools even after making payment. Therefore, it is crucial for users to maintain regular backups of their data to mitigate the risk of data loss due to ransomware attacks. For those already affected, the best course of action is to seek professional cybersecurity assistance and explore data recovery programs. Engaging with community forums dedicated to cybersecurity might provide additional insights or support from others who have dealt with similar ransomware situations, though there’s no guarantee for success in decrypting the locked files.

How Lockfile Ransomware infects computers

Lockfile ransomware, part of the MedusaLocker family, primarily infects computers through various vectors, often leveraging social engineering tactics. The most common method of distribution is via phishing emails, where unsuspecting victims are enticed to open malicious attachments or click on harmful links. These emails may masquerade as legitimate communications, containing files disguised as documents, PDFs, or software updates. Additionally, Lockfile can spread through compromised websites or dubious download channels, such as torrent sites, where users inadvertently download malicious executables. Once executed, the ransomware encrypts files on the infected system, rendering them inaccessible and leaving a ransom note demanding payment for decryption. Users are urged to maintain vigilance, avoid suspicious emails, and ensure robust security measures are in place to mitigate the risk of infection.

1. Download Lockfile Ransomware Removal Tool
2. Get decryption tool for .lockfile files
3. Recover encrypted files with Stellar Data Recovery Professional
4. Restore encrypted files with Windows Previous Versions
5. Restore files with Shadow Explorer
6. How to protect from threats like Lockfile Ransomware

Lockfile Ransomware files:


HOW_TO_RECOVER_DATA.html
{randomname}.exe


Lockfile Ransomware registry keys:

no information

How to decrypt and restore .lockfile files

Use automated decryptors

Download Kaspersky RakhniDecryptor

Use the following tool from Kaspersky called Rakhni Decryptor, that can decrypt .lockfile files. Download it here:

Download RakhniDecryptor

There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .lockfile files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with Lockfile Ransomware and removed from your computer, you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually, you can do the following:

Use Stellar Data Recovery Professional to restore .lockfile files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select the type of files you want to restore and click Next button.
4. Choose the location where you would like to restore files from and click Scan button.
5. Preview found files, choose ones you will restore and click Recover.

Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

1. Right-click on infected file and choose Properties.
2. Select Previous Versions tab.
3. Choose a particular version of the file and click Copy.
4. To restore the selected file and replace the existing one, click on the Restore button.
5. In case there are no items in the list, choose an alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it, and you will see a screen listing of all the drives and the dates that shadow copy was created.
3. Select the drive and date that you want to restore from.
4. Right-click on a folder name and select Export.
5. In case there are no other dates in the list, choose an alternative method.

If you are using Dropbox:

1. Login to the Dropbox website and go to the folder that contains encrypted files.
2. Right-click on the encrypted file and select Previous Versions.
3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like Lockfile Ransomware, in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.

Download ZoneAlarm Anti-Ransomware

2. Back up your files

As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. Lockfile Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.

Download MailWasher Pro