BAD RABBIT Ransomware Virus - How to Remove + Recover Files

by Ventsislav Krastev | October 25, 2017 | 0 Comments AES Encryption Algorithm, BAD RABBIT, HDD Encryption, MBR, ransomware

This article aims to show you how to remove the newly emerged BAD RABBIT “Oops, your files have been encrypted” ransomware threat that encrypts your MBR and how to try and unlock your drive in order to access your files instead of paying a hefty ransom to restore them.

BAD RABBIT ransomware is yet another virus that has hit Eastern Europe. The malware is very specific and uses very similar XTS encryption mode as the previously detected Mamba Ransomware virus, using AES encryption algorithm to encode the MBR (Master Boot Record) of the drives of infected computers. The ransomware then, sets the same “Oops, Your Important files have been encrypted” message, just like the notorious Petya.A ransomware virus did in it’s outbreak during the summer this year. Even though your computer has been infected by the BAD RABBIT ransomware virus there still may be a chance to recover a big portion of your files. Read the following article to learn how to remove BAD RABBIT ransomware and try to restore your data without paying a hefty ransom.

Threat Summary

Name	BAD RABBIT
Type	Ransomware, Cryptovirus
Short Description	Aims to encrypt the master boot record (MBR) of the system drives of the computers infected by it and then demand from the victim to visit a Tor-based web page in order to pay 0.05 BTC (BitCoin) to restore the encrypted files.
Symptoms	The very same “Oops, your files have been encrypted.” message appears during system boot in red Fixedsys font. Leads the user to a TOR-based web page, where approximately 40 hours deadline time deadline is given to pay the ransom.
Distribution Method	Spam Emails, email Attachments, executable files, Flash exploits, malicious macros.
Detection Tool	See If Your System Has Been Affected by malware Download Malware Removal Tool
User Experience	Join Our Forum to Discuss BAD RABBIT.
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.

BAD RABBIT – Distribution Process

The main distribution technique of BAD RABBIT ransomware has been reported by malware analysts at Proofpoint and ESET to be conducted via a fake Adobe Flash player update package, however it was also detected to be embedded in tools that have the ability to infiltrate organization networks, such as small businesses as well as government facilities.

Kaspersky has also published their report in which the virus is detected to be spread via a drive-by intrusion and the victims who opened a URL, were redirected to a web page which pushed the fake Flash update package. So as far as distribution goes, nobody is secure, even the home user.

Furhtermore, analysts have also detected this malware to use the so-called Mimikatz in order to obtain system information from the computer of the victim in order to sum up a list of credentials used to access servers in the network which are more central and hence infect as many end devices on the network as possible.

BAD RABIT Ransomware – Activity

When researchers have looked into the code of this virus, they have established that it is based on an open source encryption solution, called DiskCryptor. This solution aims to convert GPT to MBR and UEFI to Legacy modes. Then, it also reboots the computer, which is similar to what the ransomware does. It support the usage of AES, Twofish and Serpent encryption algoirthms and is classified as a high performance one.

BAD RABIT ransomware uses this technique after it drops it’s malicious infection file, called install_flash_player.exe. When the file is dropped it is automatically executed, which is known as a drive-by-download. Once it is active, the file has functions which dop the following files:

C:\Windows\infpub.dat
C:\Windows\system32\rundll32.exe
C:\Windows\infpub.dat

When the Infpub.dat file is executed, it creates two other files:

C:\Windows\cscc.dat
C:\Windows\dispci.exe

The first file “cscc.dat” is programmed to create a new service, which it calls Windows Client Side Caching DDriver. This service aims to execute the driver of the file.

Infpub.dat also creates a task in the Windows Task Scheduler, that automatically runs the second file “dispci.exe”. It on the other hand is ran the next time when you log into your Windows machine. The task, running “dispci.exe” is called Rhaegal. Then, the Infbpub.dat file, also performs several other activities, such as encrypting the files on your computer as well. More information on the encryption you can find from the “Encryption” paragraphs further down below.

But the activity of Infpub.da does not end there. The cleverly coded file can also be redistributed via SMB exploits to other systems via stolen network information from the computer of the victim. The malware even has the possibility to obtain user and password information from network servers.

Both the “cscc.dat” and the “dispci.exe” files are responsible for the encryption of your disk, more specifically encoding the MBR and then displaying the following ransom note:

In addition to this activitiy, the virus also creates custom registry entries with values in them that contain the following Windows registry sub-keys.

→ HKLM\SYSTEM\CurrentControlSet\services\cscc
HKLM\SYSTEM\CurrentControlSet\services\cscc\Type 1
HKLM\SYSTEM\CurrentControlSet\services\cscc\Start 0
HKLM\SYSTEM\CurrentControlSet\services\cscc\ErrorControl 3
HKLM\SYSTEM\CurrentControlSet\services\cscc\ImagePath cscc.dat
HKLM\SYSTEM\CurrentControlSet\services\cscc\DisplayName Windows Client Side Caching DDriver
HKLM\SYSTEM\CurrentControlSet\services\cscc\Group Filter
HKLM\SYSTEM\CurrentControlSet\services\cscc\DependOnService FltMgr
HKLM\SYSTEM\CurrentControlSet\services\cscc\WOW64 1

BAD RABBIT Ransomware – Encryption

For the encryption, the DiskCryptor components are configred for the virus not only to encrypt the MBR. BAD RABBIT also attacks the files on your computer and encodes them via the AES encryption algorithm. The encryption process results in generating a unique decryption key after rendering the files encoded. This key is used for their unlocking and the cyber-criminals have the only software used to reverse this process. The procedure of encrypting your files may look somewhat like the following:

BAD RABBIT does not encrypt just about any file on your computer if the virus infects it. The malware aims to encrypt particular files that may be important to you, like documents, videos, audio files, images, archives and other. Malware researchers report BAD RABBIT to target the following file types:

→ .3ds .7z .accdb .ai .asm .asp .aspx .avhd .back .bak .bmp .brw .c .cab .cc .cer .cfg .conf .cpp .crt .cs .ctl .cxx .dbf .der .dib .disk .djvu .doc .docx .dwg .eml .fdb .gz .h .hdd .hpp .hxx .iso .java .jfif .jpe .jpeg .jpg .js .kdbx .key .mail .mdb .msg .nrg .odc .odf .odg .odi .odm .odp .ods .odt .ora .ost .ova .ovf .p12 .p7b .p7c .pdf .pem .pfx .php .pmf .png .ppt .pptx .ps1 .pst .pvi .py .pyc .pyw .qcow .qcow2 .rar .rb .rtf .scm .sln .sql .tar .tib .tif .tiff .vb .vbox .vbs .vcb .vdi .vfd .vhd .vhdx .vmc .vmdk .vmsd .vmtm .vmx .vsdx .vsv .work .xls .xlsx .xml .xvd .zip

Eventually, after encryption, the malware creates two different scheduled tasks, called drogon and viserion. They aim to trigger programs which restart the computer of the victim and display the following message on sytem boot:
Oops! Your files have been encrypted.

If you see this text, your files are no longer accessible.
You might have been looking for a way to recover your files.
Don’t waste your time. No one will be able to recover them without our
decryption service.

We guarantee that you can recover all your files safely. All you
need to do is submit the payment and get the decryption password.

Visit our web service at {onion web link}

Your personal installation key#1:

The onion web link leads victims to open the following web page which has a deadline timer and the following message:

Text from image:

BAD RABBIT

If you access this page your computer has been
encrypted. Enter the appeared personal key in
the field below. If succeed, you’ll be
provided with a bitcoin accounj ht alvussjl
ebpzmndh myj xvqgiuj emoji cq xx fcu mpjyfj
Once we receive your payment you’ll get a
password to decrypt your data. To verify your
payment and check the given passwords enter
your assigned bitcoin address uz lehb qarivqgk
utjj

How to Try and Recover Drives By BAD RABBIT Ransomware

Previous variants of HDD encryption malware were decryptable. Unfortunately, this is not the case with this BAD RABBIT ransomware variant. This is why, we have decided to create theoretical instructions to help you try and recover at least some of your important files. Here is what you will need to have for the instructions:

A screwdriver, corresponding to your desktop/laptop.
A secure computer that is scanned for malware and cleaned and has a proper ransomware protection.
Patience.

First of all, you should choose the safe computer from which to scan your files to be a powerful Windows machine which is also secured. This is why we recommend following these steps to secure it:

1. Download an ransomware and malware protection program.

Spy Hunter scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter
2. Download a relevant ransomware protection program.
3. Download a relevant cloud backup program that backups copies of your files on a secure server and even if your computer is affected you will stay protected. For more information you can also check another methods to safely store your data here.

After securing the test PC, you should prepare it for the decryption process which will most likely be lengthy. This is why we recommend changing the power settings so that your decryption computer does not automatically hibernate or sleep while left decrypting the drive.

→ Step 1: Click on the battery icon in your system tray (next to the digital clock) in Windows and then click on More Power Options.
Step 2:The Power options menu will appear. In your power plan click on Change Plan Settings.
Step 3: In your plan’s settings make sure you set “Turn off the display” and “Put computer to sleep” to “Never” from the drop down minutes menu.
Step 4: Click on Save Changes and close it.

Recovery Phase

For the recovery process, we have outlined several often-met drive migration scenarios which can be possible between different computers:

From Laptop to Laptop with no extra components.
From Desktop to Desktop with no extra components.
From Laptop to Desktop with a SATA cable converter.
From Desktop to Laptop with a SATA cable converter.

To simplify the process, we recommend you to choose machines that do not require any extra cables or components for the drive to run on them. In case you do not have such possibility, we recommend using an external SATA-USB adapter.

Step 1: Remove battery and power from your laptop. For desktop computers, please remove eliminate the power from the contact.

Step 2: Using the screwdriver, unscrew the case which carries the hard drive. For laptops, you should follow these steps:

Step 3: Remove the hard drive again with the screwdriver. It will look similar to the one on the picture below:

Step 4: Plug-in the hard drive on a secure computer which has an internet connection and Windows installed and screw it in firmly. If connected directly, the hard drive should be detected by the OS as a separate partition, similar to the picture below:

Step 5: After you have connected the drive, you will likely not be able to open it, because it’s sectors are encrypted. However, because only some of the sectors are encrypted, enough to render the drive no longer openable, you may have a chance if you use a data recovery software to recover the files from the drive as you were scanning a lost partition. Most data recovery programs have support for scanning broken partitions, but we recommend you to try the following:

→ Stellar Phoenix Windows Data Recovery

Conclusion and Protection Tips Against BAD RABBIT Infections

We will continue to monitor the situation with BAD RABBIT ransomware and update with every new variant coming out as we did with previous ransomware variants. Follow this web page or our blog news letter by e-mail for more information to come soon. In the meantime, we strongly advise you to update your Windows systems and secure them properly against malware. To learn more about security your PC and data in the future, we recommend reading the following materials:

→Related:Ransomware Protection Tips

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

How to Remove BAD RABBIT from Windows.

Step 1: Boot Your PC In Safe Mode to isolate and remove BAD RABBIT

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 BAD RABBIT 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 BAD RABBIT 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 BAD RABBIT 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 BAD RABBIT with SpyHunter Anti-Malware Tool

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

Download

Malware Removal Tool

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.

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

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.

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

Step 5 (Optional): Try to Restore Files Encrypted by BAD RABBIT.

Ransomware infections and BAD RABBIT 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:

EaseUS Data Recovery Software

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 BAD RABBIT from Mac OS X.

Step 1: Uninstall BAD RABBIT 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 BAD RABBIT:

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 BAD RABBIT. 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 BAD RABBIT. 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 BAD RABBIT 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 BAD RABBIT. 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.

Click the button below below to download SpyHunter for Mac and scan for BAD RABBIT:

Download

SpyHunter for Mac

Step 3 (Optional): Try to Restore Files Encrypted by BAD RABBIT.

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

EaseUS Data Recovery Software

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.

BAD RABBIT FAQ

What is BAD RABBIT ransomware and how does it work?

BAD RABBIT 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 BAD RABBIT ransomware infect my computer?

Via several ways.BAD RABBIT 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 BAD RABBIT 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 .BAD RABBIT files?

You can't. At this point the .BAD RABBIT 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 .BAD RABBIT files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by BAD RABBIT 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 ".BAD RABBIT" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .BAD RABBIT 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 BAD RABBIT 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 BAD RABBIT ransomware and then remove it without causing any additional harm to your important .BAD RABBIT files.

Also, keep in mind that viruses like BAD RABBIT 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.

BAD RABBIT Ransomware Virus – How to Remove + Recover Files