THREAT REMOVAL

Remove Rumble Crypt Ransomware and Restore Encrypted Files

rumble-crypt-ransomware-file-encryption-sensorstechforum-mainA researcher at Fortinet Security has discovered a new ransomware variant, called Rumble Crypt. The virus has been reported to have a payment page which is Tor-based, which points out to the possibility that it is already up and running. Rumble Crypt aims only for one – to infect the maximum amount of users and encrypt their files using a strong encryption algorithm. The encrypted files can no longer be opened with any program, and the only 100 percent working way remains to be the receiving of a decryption key from cyber-criminals after paying the ransom amount and contacting the cyber-criminals. Malware research experts strongly advise infected users not to pay the ransom. Instead, you may remove it yourself and try alternative methods to recover your files by using the information in this article.

Threat Summary

Name

Rumble Crypt

Type Ransomware
Short Description The malware encrypts users’ files, dropping ransom message as a text and an .HTML file.
Symptoms The user may witness ransom messages and “instructions” and a sound message all linking to a web page and a decryptor.
Distribution Method Via an Exploit kit.
Detection Tool See If Your System Has Been Affected by malware

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Malware Removal Tool

User Experience Join our forum to Discuss Rumble Crypt 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.

Rumble Crypt Ransomware – Distribution

To be widespread, Rumble Crypt’s hacking team may use spamming software in combination with other tools that may spread the malicious files via redirects to hazardous web links or even malicious e-mail attachments. The spam messages usually include obfuscated executables that are mainly focused on being activated while remaining hidden and hence bypassing any firewalls and other real-time protection.

The e-mails may contain different subjects and content that usually aims to be as convincing as possible, for example:

rumble-crypt-spam-email-ransomware-sensorsechforum

Rumble Crypt Ransomware – More Information

As soon as Rumble Crypt has been installed on your computer, the ransomware may drop it’s payload which may consist of different type of files:

  • (.exe) – an executable file that is the main module of the ransomware and may modify the registry entries of the user PC as well as change wallpapers and encrypt files.
  • (.bat) – a batch file which may exist to simply delete the volume shadow copies on the computer of the user PC by using the following command:
  • → vssadmin delete shadows /for={Drive Volume} /all /quiet

  • (.vbs) – script that may copy, display and change different information on the computer and either display it to the user or the cyber-criminals.
  • (.tmp) – temporary files for infection.
  • (.dll) – dll support modules.
  • The malicious files may be located in the usually targeted Windows folders which are:

    • %AppData%
    • %System%
    • %Roaming%
    • %SystemDrive%
    • %Temp%
    • %Local%
    • %LocalRow%

    After the files are done, the ransomware may modify the Windows Registry Editor so that these executables are ran automatically when Windows boots up. The usually targeted registry keys are the below-mentioned:

    → (key)HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run(key)
    (key)HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce(key)
    (key)HKEY_LOCAL_MACHINE \Software\Microsoft\ Windows\CurrentVersion\RunServices(key)
    (key)HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce(key)
    (key)HKEY_LOCAL_MACHINE \Software\Microsoft\Windows NT\CurrentVersion \Winlogon\Userinit(key)
    (key)HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run(key)
    (key)HKEY_CURRENT_USER \Software\Microsoft\Windows\CurrentVersion\RunOnce(key)
    (key)HKEY_CURRENT_USER \Software\Microsoft\Windows\CurrentVersion\RunServices(key)
    (key)HKEY_CURRENT_USER \Software\Microsoft\Windows\CurrentVersion\Run ServicesOnce(key)
    (key)HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows(key)

    After its malicious files run on startup, the encryption process started by Rumble Crypt begins. This virus looks for widely used types of files which are usually:

    • Videos.
    • Audio files.
    • Databases.
    • Photoshop files.
    • Microsoft Office documents.
    • Files associated with other often used software.

    After encryption, the data enciphered by Rumble Crypt ransomware become utterly useless. Rumble Crypt may also add a file extension that is random or corresponds to its name after the original file extension. The virus may use either AES or RSA encryption algorithms that generate a unique key which is sent to the cyber-criminals’ command and control servers.

    The virus then drops a ransom note as a text file and an .HTML file which leads to the following web page:

    rumblecrypt-ransomware-main-sensorstechforum-ransom-note

    Rumble Crypt Ransomware – Conclusion, Removal, File Restoration

    Judging by the ransom note of this virus, Rumble Crypt ransomware is primarily oriented into using Tor networking to communicate with its victims. It also uses the e-mail address rumblecrypt@rediffmail.com for a so-called “customer support” by the cyber-crooks. Experts strongly advise that this virus should immediately be removed from any infected computer instead of paying ransom money in BitCoin to cyber-criminals that may or may not deliver.

    To remove Rumble Crypt ransomware, we strongly advise you to follow the step-by-step instructions below and use the information in this article to look for the malicious files and other objects dropped on your computer b Rumble Crypt ransomware virus. Furthermore, experts strongly advise users to download an advanced anti-malware program for several good reasons. One of them is that this is a significantly increased protection against ransomware and the other more important reason is that it will automatically and swiftly detect and remove Rumble Crypt ransomware from your computer.

    To attempt file restoration, we advise you to attempt the steps from section “3. Restore files encrypted by Rumble Crypt” while researchers release a decryptor which we will post in this article as an update.

    Avatar

    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.

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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

    REMOVE IT NOW (PC)
    with Anti-Malware
    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 Rumble Crypt from Windows.


    Step 1: Boot Your PC In Safe Mode to isolate and remove Rumble Crypt

    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 Rumble Crypt 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 Rumble Crypt 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 Rumble Crypt 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 Rumble Crypt 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 Rumble Crypt.

    Ransomware infections and Rumble Crypt 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 Rumble Crypt from Mac OS X.


    Step 1: Uninstall Rumble Crypt 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 Rumble Crypt:

    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 Rumble Crypt. 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 Rumble Crypt. 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 Rumble Crypt 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 Rumble Crypt. 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 Rumble Crypt:


    Download

    SpyHunter for Mac



    Step 3 (Optional): Try to Restore Files Encrypted by Rumble Crypt.

    Ransomware infections and Rumble Crypt 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.


    Rumble Crypt FAQ

    What is Rumble Crypt ransomware and how does it work?

    Rumble Crypt 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 Rumble Crypt ransomware infect my computer?

    Via several ways.Rumble Crypt 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 Rumble Crypt 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 .Rumble Crypt files?

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

    One way to restore files, encrypted by Rumble Crypt 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 ".Rumble Crypt" files (Other Methods)?

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

    Also, keep in mind that viruses like Rumble Crypt 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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