How to remove MARS Ransomware and decrypt .mars or .vyb files

How to remove MARS Ransomware and decrypt .mars or .vyb files

What is MARS Ransomware

MARS Ransomware is a malicious program discovered by Michael Gillespie. The way it encrypts files is very similar to other infections of such type – by appending the new .mars or .vyb extensions to highlight the affected data. Victims will see their files transform into something like this 1.mp4.mars or 1.mp4.vyb. As a result of these actions, files cannot be opened or manipulated by users in any way. To fix it and recover your data, cybercriminals offer to read instructions in a text note (!!!MARS_DECRYPT.TXT) created after encryption.

MARS Ransomware

It informs you that various data types stored on your PC have been encrypted with the virus. To revert it, people have to pay 500$ in BTC for the decryption key. Before doing so, extortionists strongly insist on sending up to 3 files for free decryption to make sure of their trustworthiness. After this, the cybercriminals team will reply back with the payment link towards purchasing their software. You can also contact developers via Telegram and buy the key right away without testing free decryption. Although such features provided by swindlers may instill trust in their intentions, it is recommended against agreeing on what they say, because there is no actual guarantee that they will return your data safe and undamaged. It is important to delete MARS Ransomware from your computer as soon as possible, however, it will not unlock your data. You will have to recover it from an external drive (USB), or following the steps below.

How MARS Ransomware infected your computer

Infections that encrypt personal data are often distributed via trojans, e-mail spam, unprotected RDP configuration, exploits, keyloggers, backdoors, fake software cracking tools, and so forth. The penetration done through spam messages is a tricky thing. Cybercriminals design the messages in a legitimate manner to make users fall in trust and initiate the attached files. The range of included content may vary from JavaScript files, executables to more regular ones like MS Office documents or PDFs that have been shared by many users around the web. Never open such files if you do not know the source of promotion, otherwise, it can turn out fatal for your privacy. Another big point to mention is avoiding freeware downloads. Even so-called “cracks” for bypassing the activation of licensed software can be a cover for malware infiltration. Do not rely on attractive ads, because they can lead to malicious resources as well. You can use our guide below to enable online protection from such threats in the future.

Download MARS Ransomware Removal Tool
Get decryption tool for .mars or .vyb files
Recover encrypted files with Stellar Data Recovery Professional
Restore encrypted files with Windows Previous Versions
Restore files with Shadow Explorer
How to protect from threats like MARS Ransomware

Download Removal Tool

To remove MARS Ransomware completely, we recommend you to use WiperSoft AntiSpyware from WiperSoft. It detects and removes all files, folders, and registry keys of MARS Ransomware and prevents future infections by similar viruses.

Alternative Removal Tool

Download SpyHunter 5

To remove MARS Ransomware completely, we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders, and registry keys of MARS Ransomware. The trial version of SpyHunter 5 offers virus scan and 1-time removal for FREE.

MARS Ransomware files:


MARS Ransomware registry keys:

no information

How to decrypt and restore .mars or .vyb files
Use automated decryptors
Download Kaspersky RakhniDecryptor

Use the following tool from Kaspersky called Rakhni Decryptor, which can decrypt .mars or .vyb 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 .mars or .vyb files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing of 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 MARS 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 .mars or .vyb files

Download Stellar Data Recovery Professional.

Click the Recover Data button.
Select the type of files you want to restore and click the Next button.
Choose a location where you would like to restore files from and click the Scan button.
Preview found files, choose ones you will restore, and click Recover.

Download Stellar Data Recovery Professional

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

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

If you are using Dropbox:
Login to the DropBox website and go to the folder that contains encrypted files.
Right-click on the encrypted file and select Previous Versions.
Select the version of the file you wish to restore and click on the Restore button.
How to protect the computer from viruses, like MARS Ransomware, in future

1. Get special anti-ransomware software
Use BitDefender Anti-Ransomware

Famous antivirus vendor BitDefender released a free tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. It will not conflict with bigger security applications. If you are searching complete internet security solution consider upgrading to the full version of BitDefender Internet Security.

Download BitDefender Anti-Ransomware

2. Back up your files

As an additional way to save your files, we recommend online backup. Local storages, such as hard drives, SSDs, flash drives, or remote network storages can be instantly infected by the virus once plugged in or connected to. MARS 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.


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