THREAT REMOVAL

Mischa Ransomware Bonds with Petya Ransomware

STF-mischa-ransomware-logo-copy-of-petya-ransomware

Petya ransomware now spreads with a copy of itself – Mischa. Petya, as before, asks for admin privileges to encrypt the MBR, but now if that fails, Mischa ransomware is loaded, which encrypts files on the infected PC. Considering how the two crypto-viruses operate and their names, the James Bond movie GoldenEye comes to mind. In the movie, there is a weapon named GoldenEye, consisting of two satellites named Petya and Mischa. The criminals in the film worked for the organization Janus – the ransomware owners identify themselves with the same name.

Mischa encrypts files with an extension consisting of four random symbols. To see how to remove the ransomware viruses and what you can try to restore your files, you should read the whole article.

UPDATE! New version of Petya and Mischa has been found, calling itself GoldenEye Ransomware. More information and decryption attempts below:
Remove GoldenEye Ransomware and Decrypt Encrypted Drives

Threat Summary

NameMischa Ransomware
TypeRansomware
Short DescriptionPetya ransomware encrypts the MBR. If that fails, Mischa ransomware loads and encrypts files.
SymptomsThe ransomware creates a file named YOUR_FILES_ARE_ENCRYPTED. Mischa puts a four random character extension to each encrypted file.
Distribution MethodSpam Emails, Email Attachments, Executable Files
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Mischa Ransomware.
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.

STF-mischa-ransomware-ransom-message-note-instructions

Mischa Ransomware – Delivery

Mischa ransomware comes bundled with Petya ransomware. The delivery method is the same as the previous variant of Petya – through spam emails. The emails are very detailed and are written with proper German grammar and vocabulary. The attached files have the names Bewerbungsfoto.jpg and PDFBewerbungsmappe.exe. The malware is found in these attachments, mainly in the executable file. Don’t open such emails which look suspicious and are from an unknown source.

STF-mischa-ransomware-email-attachment-picture-bewerbungsfoto

On the right you can see how the attached picture looks. Beware that social media sites and file-sharing services might also have files that employ the malware, as the creators could have masked them and put them there. In addition, there could also be a link to DropBox as before. Along the link, you could see the statement that there’s a CV or related document in DropBox because the files are too big to attach inside the email.

Mischa Ransomware – More Information

The Petya ransomware now has a double with which is bundled with, called Mischa.

Petya still asks for administrative privileges so that it can encrypt the Master Boot Record (MBR). Only, this time, there is a backup plan if the user does not grant those permissions. In case that fails, the Mischa ransomware is loaded, which will encrypt files on the infected machine.

STF-mischa-and-petya-ransomware-bond-goldeneye

Judging from how the two crypto-viruses operate, like a double-edged sword, and putting their names together, one can only think of GoldenEye. In this James Bond movie, there is a weapon named GoldenEye, consisting of two satellites named Petya and Mischa. Not to mention that the criminals in the movie worked for an organization called Janus – the same name is used here for the cyber crooks to identify themselves. The GoldenEye weapon in the film could destroy all electronic devices, and the crippling effect that these crypto-viruses aim for is not far from that.

Petya ransomware will still encrypt the MBR, which contains information about loading Operating Systems on a computer. No OS will load if the MBR is missing or damaged (in this case – encrypted). If a user gives administrative privileges to the malware and restarts the computer, the MBR is locked, and the same ASCII-generated skull is shown, this time in green:

STF-mischa-ransomware-boot-screen-green-acsi-skull

Mischa creates the following files:

  • YOUR_FILES_ARE_ENCRYPTED.HTML
  • YOUR_FILES_ARE_ENCRYPTED.TXT

They contain the ransomware instructions, which you can see in the image below:

STF-mischa-ransomware-ransom-message-note

The file reads the following:

You became victim of the MISCHA RANSOMWARE!

The files on your computer have been encrypted with an military grade encryption algorithm. There is no way to
restore your data without a special key. You can purchase this key on the darknet page shown in step 2.

To purchase your key and restore your data, please follow these three easy steps:

1. Download the Tor Browser at “https://www.torproject.org/”. If you need
help, please google for “access onion page”.

2. Visit one of the following pages with the Tor Browser:

http://mischapuk6hyrn72.onion/1MZKMy
http://mischa5xyix2mrhd.onion/1MZKMy

3. Enter your personal decryption code there:

The price for the ransom is 1.93 BitCoins or nearly 880 US dollars, which is more than double from the previous variant. Do NOT pay the ransom. Giving money to the creators will only encourage them to make more variants or worse. Also, there exists no guarantee that you will get your files back if you pay.

The Mischa ransomware locks all kinds of files with almost any kind of extension, even files with a .exe extension. In that way, you might not be able to run programs, including anti-malware ones.The encryption process combines RSA 4096 bit algorithm and 256 bit AES ciphers.

After Mischa completes the encryption process, all files will have an extension appended to them, consisting of four random symbols. The extension varies from user to user, but these are the known ones:

  • .cRh8
  • .3P7m
  • .aRpt
  • .eQTz
  • .3Rnu

Mischa ransomware probably could also delete or damage Shadow Volume Copies of the Windows Operating System. Nevertheless, you should check the instructions after removal for ways to possibly restore your files.

Remove Mischa Ransomware and Restore Encrypted Files

If you got your PC infected by the Mischa ransomware, you should have a bit of experience with removing viruses. You should remove the malware as soon as possible as it could encrypt more files and spread wider across the network. We recommend that you remove the ransomware and follow the step-by-step instructions given below to see how you might be able to restore your files.

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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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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

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.


OFFER

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with Spy Hunter
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove Mischa Ransomware from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Mischa Ransomware

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

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

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall Mischa Ransomware and related software 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:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by Mischa Ransomware 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 Mischa Ransomware there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
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.

IMPORTANT!
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: Scan for Mischa Ransomware with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by Mischa Ransomware.

Ransomware infections and Mischa Ransomware 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.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of Mischa Ransomware from Mac OS X.


Step 1: Uninstall Mischa Ransomware and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to Mischa Ransomware:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Mischa Ransomware. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Mischa Ransomware. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Mischa Ransomware via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Mischa Ransomware. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove malware from your Mac

When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Step 3 (Optional): Try to Restore Files Encrypted by Mischa Ransomware on your Mac.

Ransomware for Mac Mischa Ransomware aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money.

This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery Mac app by clicking on the link underneath:


Mischa Ransomware FAQ

What is Mischa Ransomware ransomware and how does it work?

Mischa Ransomware 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 algorithm how 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.

How does Mischa Ransomware ransomware infect my computer?

Via several ways.Mischa Ransomware Ransomware infects computers by being sent via phishing e-mails, 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.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of Mischa Ransomware 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 .Mischa Ransomware files?

You can't. At this point the .Mischa Ransomware files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .Mischa Ransomware files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by Mischa Ransomware ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".Mischa Ransomware" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Mischa Ransomware files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of Mischa Ransomware ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate Mischa Ransomware ransomware and then remove it without causing any additional harm to your important .Mischa Ransomware files.

Also, keep in mind that viruses like Mischa Ransomware ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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