How to remove Mars ransomware and decrypt .mars files

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What is Mars ransomware?

Mars ransomware is another cryptovirus that encodes user files so that they cannot be accessed until they are decrypted. The reverse process is possible only with the help of a private key and decryption software, which can be purchased for money from cybercriminals. The amount that cybercriminals require for their services is 500$ in BTC. After payment is confirmed, victims will be able to download decryption tools. However, we don’t advise you to comply with the terms of cybercriminals. As practice shows, quite often, victims who pay the ransom are left with nothing. Instead, you may follow this guide to remove Mars ransomware and decrypt .mars files without paying a ransom.

remove Mars ransomware

Once the encryption procedure is done, all infected files will be appended with “.mars” extension. For example, “mydoc.doc” file will turn into “mydoc.doc.mars”. Afterward, Mars ransomware leaves !!!MARS_DECRYPT.TXT file that contains a ransom-demanding message. Cybercriminals want victims to contact them to get information about the payment procedure to get a decryption tool. As a confirmation of their words, they offer to decrypt several files for free.


Here’s what the !!!MARS_DECRYPT.TXT note contains:

All your files have been encrypted with MARS Virus.
Your unique id: –

Our virus encrypted 231 of your office files (xls, xlsx, doc, docx, ppt, pptx, odt, ods, pdf, dwg, psd, dbf, fpt, php, cdr, mdb, accdb).
You can buy decryption for 500$ in Bitcoins.
But before you pay, you can make sure that we can really decrypt any of your files.
The encryption key and ID are unique to your computer, so you are guaranteed to be able to return your files.

To do this:
1) Send your unique id – and max 3 files for test decryption to mars_dec@outlook.com or anton_ivan_8989@mail.ru
2) After decryption, we will send you the decrypted files and a unique bitcoin wallet for payment.
3) Be careful! Fakes are possible in Telegram, never pay until you receive test files after decryption!
4) After payment ransom for Bitcoin, we will send you a decryption program and instructions. If we can decrypt your files, we have no reason to deceive you after payment.

or do this(If you have not received a reply by email):

1) Download and install Telegram Messanger: hxxps://desktop.telegram.org/ (for Windows, Linux, macOS)
2) Find user mars_dec
3) Send your unique id – and max 3 files for test decryption.
4) After decryption, we will send you the decrypted files and a unique bitcoin wallet for payment.
5) Be careful! Fakes are possible in Telegram, never pay until you receive test files after decryption!
6) After payment ransom for Bitcoin, we will send you a decryption program and instructions. If we can decrypt your files, we have no reason to deceive you after payment.

FAQ:
Can I get a discount?
No. The ransom amount is calculated based on the number of encrypted office files and discounts are not provided. All such messages will be automatically ignored.
What is Bitcoin?
read bitcoin.org
Where to buy bitcoins?
hxxps://bitcoin.org/en/buy
hxxps://buy.moonpay.io
or use google.com
Where is the guarantee that I will receive my files back?
The very fact that we can decrypt your random files is a guarantee. It makes no sense for us to deceive you.
How quickly will I receive the key and decryption program after payment?
As a rule, within a few hours, but very rarely there may be a delay of 1-2 days.
How does the decryption program work?
It’s simple. You need to copy the key and select a folder to decrypt. The program will automatically decrypt all encrypted files in this folder and its subfolders.
I will complain about your Telegram account and mailbox’s..
God help you. You won’t find us anyway. But many people will be deprived of any opportunity to recover their files.


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 Mars 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.
Screenshot of .mars files:

remove Mars ransomware

There are two solutions to remove Mars 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.


How Mars 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:
NameMars
Type of threatRansomware, cryptovirus, file-locking virus
Amount of Ransom500$ in Bitcoin
Contactanton_ivan_8989@mail.ru, mars_dec@outlook.com, mars_dec (Telegram)
Extension.mars
Ransom note!!!MARS_DECRYPT.TXT
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 Mars 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 Mars ransomware has been successfully removed, you can begin the file decryption procedure.

How to decrypt files infected by Mars 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 Mars 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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