MARS Ransomware Virus
MARS virus is a new ransomware that has just been identified to be live in an ongoing attack campaign. The ransomware code can be inserted in various payload carriers including application installers and malicious documents. When these malicious files are opened on a PC the associate infection begins. Then MARS virus triggers a long sequence of malicious processes that contaminate the operating system. All changes made by the ransomware make the infected PC extremely vulnerable to further malware attacks. As part of infection with MARS ransomware virus is the encryption of valuable personal data.
The nasty threat scans predefined system drives for specific commonly used types of files and encodes them all with a sophisticated cipher algorithm. As a result, encoded files appear with the .mars file extension. The access to their information is restricted due to their encrypted code. Hackers try to blackmail victims into paying a ransom fee for file decryption. For the extortion, their nasty program drops the file !!!MARS_DECRYPT.TXT and then presents victims with its content.
If your computer device was infected with this ransomware and you see your files as locked .mars files, read on through to find out how you could remove the ransomware, secure the system and potentially restore your files back to normal.
Threat Summary
| Name | MARS |
| Type | Ransomware, Cryptovirus |
| Ransom Note | !!!MARS_DECRYPT.TXT |
| Short Description | The ransomware encrypts files on your computer machine and demands a ransom to be paid to allegedly restore them. |
| Symptoms | The ransomware will blackmail the victims to pay them a decryption fee. Sensitive user data may be encrypted by the ransomware code. |
| Distribution Method | Spam Emails, Email Attachments |
| Detection Tool |
See If Your System Has Been Affected by malware
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Malware Removal Tool
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User Experience | Join Our Forum to Discuss MARS. |
| Data Recovery Tool | Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive. |
MARS File Virus – What Does It Do?
Another name of MARS ransomware is the MARS file virus. It comes from the extension this malware adds to files it encodes. It is not the first time when ransomware with this name appears on the malware scene. Back in April 2017, we at SensorsTechForum reported a strain of the Major ransomware with the same name.
For the nasty infection with this MARS ransomware to begin its payload file should land on the computer operating system. The most popular delivery tactics are probably going to be used by hackers.
The main technique remains the launch of phishing email messages. These messages are designed to imitate well-known services and companies and their representatives. Through them, various malware contents and attachments may be pushed to target PCs. A similar technique – malware sites may complement the propagation of MARS ransomware. Malicious payload files may be uploaded on various sites that serve as download portals.
Once the infection begins, the ransomware will probably start a data harvesting module which will retrieve sensitive information both about the infected machine and the victims. The gathered information can help for the generation of a unique infection ID used for the extortion step.
The MARS ransomware can also use the acquired information in order to scan the system for the presence of any security software in order to successfully bypass them. As soon as an intrusion is made various system settings will be altered. Usually, malicious software like MARS ransomware affects specific Windows Registry keys as well as restore points and backups.
Then the encryption stage takes place. By using a strong cipher target user data gets encoded by the ransomware. Commonly used types of files used by the majority of people are likely to be in the encryption list of the MARS file virus. All of the following files may be encoded: backups, databases, images, videos, music and etc. When this process is complete the .mars extension will be appended to the names of corrupted files. Then a ransom note that is made in a file called !!!MARS_DECRYPT.TXT.
Here is a copy of its text message:
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.
We know that you need to restore encrypted .mars files but we recommend that you refrain from transferring money to cybercriminals. Otherwise, you risk losing both your valuable files and money.
For the sake of your security, it is advisable to clean your infected computer from present malicious files and consider the help of alternative data recovery methods.
Remove MARS Files Virus
The so-called MARS file virus is a threat with highly complex code that causes damage to both essential system settings and valuable data. Hence, the only way to use your infected computer in a secure manner again is to remove all malicious files and objects created by the ransomware. For the purpose, you can follow our step-by-step removal guide.
In the event that you want to attempt to restore .mars files with the help of alternative data recovery methods, do check step five – Try to Restore files encrypted by ransomware. We remind you to back up all encrypted files to an external drive before the recovery process.
Gergana Ivanova
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
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Step 1: Scan for MARS with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall MARS and related malware from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by MARS on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by MARS there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Boot Your PC In Safe Mode to isolate and remove MARS
Step 5: Try to Restore Files Encrypted by MARS.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and MARS aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
MARS-FAQ
What is MARS Ransomware?
MARS is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.
Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.
What Does MARS Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does MARS Infect?
Via several ways.MARS Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.
Another way you may become a victim of MARS is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.
How to Open .MARS files?
You can't without a decryptor. At this point, the .MARS files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your .MARS files successfully, then do not despair, because this virus is still new.
Can I Restore ".MARS" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .MARS files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of MARS Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate MARS ransomware and then remove it without causing any additional harm to your important .MARS files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can MARS Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the MARS Research
The content we publish on SensorsTechForum.com, this MARS how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the MARS ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.
How to recognize trustworthy sources:
- Always check "About Us" web page.
- Profile of the content creator.
- Make sure that real people are behind the site and not fake names and profiles.
- Verify Facebook, LinkedIn and Twitter personal profiles.