Matroska Virus Removal - Restore .HUSTONWEHAVEAPROBLEM@KEEMAIL.ME Files
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Matroska Virus Removal – Restore [email protected] Files

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This article will help you remove Matroska ransomware effectively. Follow the ransomware removal instructions at the end.

Matroska is the name of a newly-found ransomware cryptovirus. The virus is a variant of HiddenTear and is coded to place the extension [email protected] after encryption to all files which get locked. The Matroska virus displays a ransom note in a text file with a demand for you to pay a ransom in the Bitcoin currency. Keep reading below to see how you could try to potentially restore some of your files.

Threat Summary

NameMatroska
TypeRansomware
Short DescriptionThe ransomware encrypts files on your computer and displays a ransom message afterward.
SymptomsThe ransomware will encrypt your files and put the extension [email protected] to them after it finishes its encryption process.
Distribution MethodSpam Emails, Email Attachments
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User ExperienceJoin Our Forum to Discuss Matroska.
Data Recovery ToolWindows 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.

Matroska Ransomware – Infection

Matroska ransomware could spread its infection with various methods. A payload dropper which initiates the malicious script for this ransomware is being spread around the World Wide Web, and researchers have gotten their hands on a malware sample. If that file lands on your computer system and you somehow execute it – your PC will become infected. You can see the detections of such a file on the VirusTotal service right here:

Matroska ransomware might also distribute its payload file on social media and file-sharing services. Freeware which is found on the Web can be presented as helpful also be hiding the malicious script for the cryptovirus. Refrain from opening files right after you have downloaded them. You should first scan them with a security tool, while also checking their size and signatures for anything that seems out of the ordinary. You should read the tips for preventing ransomware found in our forums.

Matroska Ransomware – Overview

Matroska is a virus that will encrypt your files and extort you to pay a ransom to get them back to normal. Malware researchers have discovered that it is a variant of the HiddenTear open-source project.

Matroska ransomware might make entries in the Windows Registry to achieve persistence, and could launch or repress processes in a Windows environment. Such entries are typically designed in a way to launch the virus automatically with each start of the Windows operating system.

That ransom note is inside a file called HOW_TO_RECOVER_ENCRYPTED_FILES.txt.

You can preview the note from the following screenshot:

That ransom note reads the following:

YOUR FILES ARE ENCRYPTED!

Your personal ID

All your files have been encrypted due to a security problem with your PC.
To restore all your files, you need a decryption.
If you want to restore them, write us to t e e-mail [email protected]

In a letter to send Your personal ID (see In the beginning of this document).
You have to pay for decryption in Bitcoins.
The price depends on how fast you write to us.
After payment we will send you the decryption tool that will decrypt all your files.
In the letter, you will receive instructions to decrypt your files!

In a response letter you will receive the address of Bitcoin-wallet, which is necessary to perform the transfer of funds.
HURRY! Your personal code for decryption stored with us only 72 HOURS!

Our tech support is available 24 \ 7
Do not delete: Your personal ID
Write on e-mail, we will help you!

Free decryption as guarantee
Before paying you can send to us up to 1 files for free decryption.
Please note that files must NOT contain valuable information and their total size must be less than 5Mb.
When the transfer is confirmed, you will receive interpreter files to your computer.
After start-interpreter program, all your files will be restored.

Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Do not attempt to remove the program or run the anti-virus tools
Attempts to self-decrypting files will result in the loss of your data
Decoders are not compatible with other users of your data, because each user’s unique encryption key

The ransom note has another variant with UI interface and loads a window that has a title “Windows Defender” so that version might be loaded through the Remote Desktop Protocol (RDP).

The note of the Matroska ransomware states that your files are encrypted. A ransom sum is demanded as payment for potentially unlocking your files. However, you should NOT under any circumstances pay any sum. Your files may not get restored, and nobody could guarantee that. Moreover, giving money to cybercriminals will likely motivate them to create more ransomware viruses or do other criminal activities.

Matroska Ransomware – Encryption

As Matroska ransomware is a HiddenTear variant it could seek to encrypt files with these extensions:

→.txt, .doc, .docx, .xls, .xlsx, .pdf, .pps, .ppt, .pptx, .odt, .gif, .jpg, .png, .db, .csv, .sql, .mdb.sln.php, .asp, .aspx, .html, .xml, .psd, .frm, .myd, .myi, .dbf, .mp3, .mp4, .avi, .mov, .mpg, .rm, .wmv, .m4a, .mpa, .wav, .sav, .gam, .log, .ged, .msg, .myo, .tax, .ynab, .ifx, .ofx, .qfx, .qif, .qdf, .tax2013, .tax2014, .tax2015, .box, .ncf, .nsf, .ntf, .lwp

Every single file that gets encrypted will receive the same extension appended to it, which is [email protected]. The encryption algorithm which is implemented is undoubtedly AES since it is a variant of the HiddenTear open-source ransomware project.

The Matroska cryptovirus could be set to erase all the Shadow Volume Copies from the Windows operating system with the help of the following command:

→vssadmin.exe delete shadows /all /Quiet

If that command stated above is executed that would make the encryption process more efficient as it will eliminate one of the ways for restoring your data. If your computer device was infected with this ransomware and your files are locked, read on through to find out how you could potentially recover your data.

Remove Matroska Virus and Restore [email protected] Files

If your computer got infected with the Matroska ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

Note! Your computer system may be affected by Matroska and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Matroska.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

To remove Matroska follow these steps:

1. Boot Your PC In Safe Mode to isolate and remove Matroska files and objects
2. Find files created by Matroska on your PC

Use SpyHunter to scan for malware and unwanted programs

3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
4. Try to Restore files encrypted by Matroska

Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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