What Is Matu Virus?
Matu virus is a typical ransomware infection. It may get inside your machine using different types of methods and then begin encrypting your important files. It uses the .matu file extension, added after encryption and the _readme.txt ransom note. This virus aims to get you to pay Bitcoin in the form of an extortion fee the criminals that have infected your device.
Read this article in order to further understand about disinfection and what it is that you can do to get rid of it completely and try to fix your data.
Matu Virus – Why Is My Windows Infected?
Matu is a cryptovirus, that infects only Windows devices and it uses different methods to get in your system. The main reason why it infects is by using a so-called malware obfuscator, which hides its malicious files, allowing it to get slithered inside your device without you even realizing.
Matu Virus – How Did I Get Infected?
Matu virus is the kind of ransomware that may use two main attack strategies to infect, such as:
- If it is sent to you as an e-mail attachment or a URL.
- By being downloaded from a shady site.
In case the malware is sent to you as an e-mail attachment, it may contain the virus within it and could appear, like the following documents:
- Work-related files.
- E-Tickets for events or flights.
Matu virus may use these documents to trigger malicious macros in them which may result in the following infection process:
Matu virus is the kind of malware that may also be downloaded from some download sites, where the malicious files appear like:
- Fake installation files.
- Software patches.
- Self extracting archives or regular archives.
- Cracked portable versions of apps.
- Software or game cracks.
- Key generator (or Keygen).
Matu Virus – What Does It Do?
Matu virus may connect to a remote host, from where it may download the payload files, which may exist under different names and be located in the following Windows directories:
Matu virus may also drop its _readme.txt ransom note file, that appears like the following:
Matu virus could also attack your Windows Registries. This happens by setting value entries, changing different settings, like in the Run and RunOnce sub-keys, where it may set its files to run automatically on Windows start:
What Are .matu Files
The .matu files are the result of this virus encrypting your data. It may use the AES encryption algorithm, which may encode your files that are detected, based on their file extensions, like the most often used ones, such as:
- Videos (.mp4, .avi, etc.).
- Audio (.mp3, .wav, etc.).
- Picture file kinds (.jpg, .png, .etc).
- Archive file formats (.zip, .rar, etc).
- Documents of different types (.docx, .pptx, etc.).
How to Open .matu Files
The Matu virus uses encryption on the files and then leaves them with changed core structure data and looking like the example below shows:
The files cannot be opened using any software, unless you have a unique asymmetric decryption key, which “unlocks” them in a way, changing their structure back to normal. This key is either sent to the cyber criminals or if offline, can be recovered using special decryption software.
What To Do If My Files Are .matu?
First, you need to know what happens to .matu files when they get encrypted. These files are encoded using the AES cipher and have the .matu file extension, do not touch them. Changing their extension or any other data in the files can permanently damage them, since they are locked using something, known as CBC (Cipher-Block-Chaining).
Matu Virus – Details
|Matu virus, also known as UDS:Trojan.Win32.Chapak.gen, Ransom:Win32/StopCrypt.KM!MTB, Win32:PWSX-gen [Trj], Win32:PWSX-gen [Trj], A Variant Of Win32/GenKryptik.FHJB – more detections of this virus on VirusTotal
|The ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them.
|The Matu Virus ransomware will encrypt your files by appending the .matu extension to them.
|Ransom Demanding Note
|Spam Emails, Email Attachments
See If Your System Has Been Affected by malware
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How To Protect Windows from Matu In The Future?
Since .matu virus attacks your files, to protect yourself, first it is strongly recommended to first remove it. Then, you will need to backup all of your files using the tips on how to safely store your files to protect them from ransomware. Keep reading the following article to learn more information about how to remove this virus and try to fix your files.
How to Remove Matu Virus?
Matu virus can be erased from your device if you follow the steps below. They contain methods that will help you get rid of the virus either by yourself or automatically from your device. For the best removal and future protection the automatic method is highly recommended, because it includes scanning your machine using a professional anti-malware program.
How to Decrypt / Fix .matu Files?
The .matu files can be decoded unless you have the decryption key. This can happen if the key is offline-based. In this case, you can use the STOP Ransomware decryption steps or the instructions in the video guide below. See them for more information.
What is Matu Ransomware?
Matu 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 Matu 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 Matu Infect?
Via several ways.Matu 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 Matu 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 .Matu files?
You can't without a decryptor. At this point, the .Matu 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 .Matu files successfully, then do not despair, because this virus is still new.
Can I Restore ".Matu" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Matu 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 Matu 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 Matu ransomware and then remove it without causing any additional harm to your important .Matu 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 Matu 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.
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 Matu Research
The content we publish on SensorsTechForum.com, this Matu 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.
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.