Home > Ransomware > Remove KeyBTC Ransomware and Restore .keybtc@inbox_com Encrypted Files
THREAT REMOVAL

Remove KeyBTC Ransomware and Restore .keybtc@inbox_com Encrypted Files

STF-keybtc-key-btc-ransomware-read-txt-ransom-note-instructions

An old ransomware seems to have emerged once again. KeyBTC is the name of this ransomware as it appends the extension .keybtc@inbox_com to encrypted files. To remove the ransomware and see if you can restore your files, you should carefully read this article throughout.

Threat Summary

Name KeyBTC
Type Ransomware
Short Description The ransomware encrypts files with RSA/PGP algorithms and asks for payment via email.
Symptoms Specific file types are encrypted. Two files are created on the user’s desktop – File1.bin and File2.bin along with a .txt file with instructions for paying the ransom.
Distribution Method Spam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

User Experience Join Our Forum to Discuss KeyBTC.
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.

KeyBTC Ransomware – Distribution Ways

KeyBTC ransomware is distributed with the help of spam emails that look as legitimate postal or shipment notifications. The emails themselves cannot infect your PC alone, but have file attachments with the ransomware inside. The attachments are .Zip file type archives. The contents of those archives are JavaScript files disguised as normal Word documents.

It is unknown if exploit kits or social media are used to further help in the distribution of this ransomware, but it is a possibility. File sharing services might contain such files as well. If something looks suspicious and you are not one hundred percent sure of its origin, do not open it. At least that is the general rule of thumb.

KeyBTC Ransomware – Description

The KeyBTC malware is a known ransomware. The legend goes that it used to target only Russian speaking countries. Alas, in late 2014 it began infecting users worldwide. Still spiraling to this day, it is not one of the most dangerous ransomware types, but it is quite effective. KeyBTC nowadays might have evolved and try making entries in the Windows Registry as other ransomware. This maneuver is done to keep malware’s persistence while loading with each boot of the Windows OS.

What makes this ransomware effective and still viable to this day is that it encrypts important files, which are still the most popular types of files used to store personal information. Another thing is that everything but the public encryption key is not sent anywhere and only known by the malware maker.

KeyBTC will put all encrypted files inside two other files which are stored in the user’s computer. They are given these simple names:

  • File1.bin
  • File2.bin

A third file is created, containing the ransomware instructions. The file is named READ with capital letters. You can see its contents here:

STF-keybtc-key-btc-ransomware-read-txt-ransom-note-instructions

The instructions state:

ATTENTION:

All your documents, photos, databases and other important personal files were encrypted using strong RSA-1024 algorithm with a unique key. If you want to restore your files please follow the instructions:
1. Send email to keybtc_@_inbox.com, with the following files in attachment:
– FILE1.BIN and FILE2.BIN files (check your desktop and local disks to find these files or just use Windows Search.
– One of your encrypted personal file for test decryption. Supported types: DOC/DOCX, JPG/JPEG, PDF. Maximum file size: 3 Mb.
2. Wait for email from us containing:
– Your decrypted file, proving that we can really help you.
– Decryption price and payment details.
3. Make payment.
4. Receive decryption key and detailed instructions how to decrypt your files.
IMPORTANT:
– You must contact us in 24 hours, unless the price will rise.
– Nobody can help you except us. It is useless to reinstall Windows, rename files, etc.
– Your files will be decrypted as quick as you contact us and make payment.

If you have any question, please feel free to ask.

Contact email: keybtc_@_inbox.com

Paying up is strongly unadvised. You might be unable to unlock your files in the end, but also, might not be contacted back by the cyber crooks at all. That could serve as an inspiration to them to make the ransomware tougher.

The KeyBTC ransomware is really specific as it scans infected computers for only 17 file types. Nonetheless, they are still the most widely used file types used by Windows users on a global scale. The encryption is a combination of PGP and RSA using open source and free software to achieve it. For the time being, this is the known list of extensions which are encrypted:

→.pdf, .rtf, .accdb, .slddrw, .zip, .rar, .max, .jpg, .mdb, .xls, .xlsx, .doc, .docx, .cdr, .dwg, .1cd, .cd

After the encryption, all files have the extension .keybtc@inbox_com, which is also the email you are instructed to contact the ransomware creators. Shadow Volume Copies might not be of much use here, as files are not only encrypted but put into the .bin files mentioned earlier and not deleted as other ransomware types tend to do.

Remove KeyBTC Ransomware and Restore .keybtc@inbox_com Encrypted Files

If your PC is infected by the KeyBTC ransomware, you should have a bit experience with removing malware. You should consider removing the malware as it might reach other files if you connect to a network or an external storage device. The recommended course of action is for you to remove the ransomware by following the step-by-step instructions provided down here.

Avatar

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.

More Posts


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 KeyBTC from Windows.


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

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 KeyBTC 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 KeyBTC 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 KeyBTC 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 KeyBTC 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 KeyBTC.

Ransomware infections and KeyBTC 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 KeyBTC from Mac OS X.


Step 1: Uninstall KeyBTC 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 KeyBTC:

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 KeyBTC. 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 KeyBTC. 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 KeyBTC 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 KeyBTC. 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 KeyBTC:


Download

SpyHunter for Mac



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

Ransomware infections and KeyBTC 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.


KeyBTC FAQ

What is KeyBTC ransomware and how does it work?

KeyBTC 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 KeyBTC ransomware infect my computer?

Via several ways.KeyBTC 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 KeyBTC 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 .KeyBTC files?

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

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

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

Also, keep in mind that viruses like KeyBTC 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.

Leave a Comment

Your email address will not be published. Required fields are marked *

Stay tuned
Subscribe for our newsletter regarding the latest cybersecurity and tech-related news.