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.
|Short Description||Petya ransomware encrypts the MBR. If that fails, Mischa ransomware loads and encrypts files.|
|Symptoms||The ransomware creates a file named YOUR_FILES_ARE_ENCRYPTED. Mischa puts a four random character extension to each encrypted file.|
|Distribution Method||Spam Emails, Email Attachments, Executable Files|
|Detection Tool|| See If Your System Has Been Affected by malware |
Malware Removal Tool
|User Experience||Join Our Forum to Discuss Mischa Ransomware.|
|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.|
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.
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.
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:
Mischa creates the following files:
They contain the ransomware instructions, which you can see in the image below:
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:
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:
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.
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.
- Guide 1: How to Remove Mischa Ransomware from Windows.
- Guide 2: Get rid of Mischa Ransomware from Mac OS X.
How to Remove Mischa Ransomware from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Mischa Ransomware
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.
Step 3: Clean any registries, created by Mischa Ransomware on your computer.
The usually targeted registries of Windows machines are the following:
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:
Step 4: Scan for Mischa Ransomware with SpyHunter Anti-Malware Tool
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.
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.
Get rid of Mischa Ransomware from Mac OS X.
Step 1: Uninstall Mischa Ransomware and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- 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:
You can repeat the same procedure with the following other Library directories:
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.
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.