THREAT REMOVAL

.bgtx Files Virus (Dharma Ransomware) – Remove + Restore Data

This article is created with the main idea to help explain what is the latest Dharma Ransomware variant and how you can remove it plus restore .bgtx encrypted files.

Dharma ransomware does not sleep and it has proven that again with a new dangerous variant that has been set loose. The new Dharma now appends the .bgtx file extension which it adds to the encrypted files and retains the extension format, like the older .combo variantFilename.id{ID-here}.[decrypt@fros.cc].bgtx. The new ransomware variant of Dharma aims to encrypt the files on your computer thus making them unable to be opened and then leaves behind a ransom note which aims to extort victims to pay ransom to get their files back. If your computer has been infected by the .bgtx file variant of Dharma ransomware, we recommend that you read this article completely and learn how to remove this Dharma ransomware variant and how to try and restore files, encrypted by it on your PC.

Threat Summary

NameDharma .bgtx Ransomware
TypeRansomware
Short DescriptionNew Dharma/CrySiS ransomware virus. Uses sophisticated encryption to extort victims to pay in BitCoin for their encrypted files.
SymptomsEncrypts documents, images, videos and other important files and adds the .bgtx file suffix plus a unique ID and the e-mail to pay the ransom.
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 Dharma .bgtx 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.


.combo Dharma Ransomware – Information Database:

.bgtx Dharma Virus - Infection Methods

.bgtx Dharma Virus – Infection Methods

Dharma ransomware is no ordinary virus, hence it uses no ordinary infection methods. The main indicator of compromise that has been detected to drop the malicious files of Dharma is reported at VirusTotal to have the following specifications to it:

SHA-256:7e623dca8a26a45440c331e383ac6ce3783d5c1bd60b91ee91ce0cc5841633e2
File size:219.5 KB

The file may be spread via different methods, but the main suspect is to be replicated via e-mail. This happens when the crooks carefully disguise an e-mail to contain a malicious attachment. Usually most attachments pretend to be .PDF or .docx files and they pose as legitimate files of great importance, for example:

  • Order rejection details.
  • Invoice for a purchase
  • Receipt for something you may have bought.
  • Important security document from your bank.
  • Document from your boss or a collegue.

These e-mails are carefully made so that they appear to come from big companies, like FedEx, PayPal, LinkedIn or other big companies. Some of the e-mails pretend as If they come from a reputable person or someone on your e-mail list of contacts. The messages always urge to open the attachment as it is “very important”:

Furthermore, .bgtx Dharma virus is also detected to use a very complicated infection method, attaching russian-speaking tarets and disguising messages as some form of accounting information. The contents of the e-mails appear as if senders send some type of spreadsheet or data information that is important. The files are always attached to the message and if not, they are linked to an external Dropbox or other file-sharing account.

The crooks are also able to deliver archived files, which do contain files that pretend to be documents. When opened, they may automatically initiate connection with the payload download server or extract the payload of Dharma directly on the victim PC.

In addition to this, the .bgtx variant of Dharma ransomware may also be spread via different programs that are uploaded on low-reputation sites, such as software cracks, patches, license activators, loaders, portable versions of freeware apps and many other .exe files, so be careful and always check files before downloading them.


Dharma .bgtx Ransomware- Malicious Activity

Dharma .bgtx Ransomware- Malicious Activity

Dharma ransomware viruses have been active for significant time and they have gained quite the name for themselves as being one of the most widespread ones. They derive from the CrySiS ransomware family with the first Dharma variant, naturally carrying the .dharma file suffix it used to append to the files and the variant itself was decryptable. But the Dharma makers did not stop there and have now released a lot of other variants of the malware, most of which are not decryptable. Some of these variants can be seen below:

And now we come to this point, where the current Dharma variant uses the .bgtx file extension which it ads to the encrypted files alongside a new e-mail address.

After an infection with the .bgtx Dharma variant occurs, not much is changed in the malicious actions the virus performs on your computer:

  • Creation of several mutexes.
  • Creating value strings with custom data in Windows Registry Editor.
  • Deleting bakckups and shadow copy files.
  • Scheduling tasks to run maliciou files or it’s ransom note on startup.
  • Disabling restore points and system recovery.
  • Changing your wallpaper.
  • Modifying sysem files (touching).

Dharma .bgtx ransomware may also drop it’s malicious files under different, often random names in the commonly targeted Windows directories:


When Dharma ransomware has dropped it’s files, the malware also interferes with the Windows Registry Editor by creating registry value entries in the Run and RunOnce sub-keys of Windows Registry Editor. They have the following location:

→ HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\

When Dharma .bgtx variant creates value strings in those sub-keys, the virus adds the location of the encryption file, so finding them is a crucial step towards finding where the malicious file of the malware is located.

Dharma .bgtx ransomware may also execute a script as an administrator in Windows Command Prompt. The script aims to delete the shadow volume copies in Windows and disable any backups. It may consist of the following commands:

→ sc stop VVS
sc stop wscsvc
sc stop WinDefend
sc stop wuauserv
sc stop BITS
sc stop ERSvc
sc stop WerSvc
cmd.exe /C bcdedit /set {default} recoveryenabled No
cmd.exe /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\System32\cmd.exe” /C vssadmin.exe Delete Shadows /All /Quiet


Dharma .bgtx Ransomware Virus - Encryption

Dharma .bgtx Ransomware Virus – Encryption

When Dharma ransomware encrypts files, the virus may employ the Advanced Encryption Standard, also known as AES. The cipher uses an asymmetric key generation which produces a key that is then masked and cannot be read by the victim. The algorithm is a very tough one to decrypt as it’s classified as a Suite.B type of cipher, used by government agencies to encrypt files that are sensitive. The cipher could however be decrypted if there is a bug in the code of Dharma .bgtx that allows it do be done.

The encryption process of Dharma .bgtx ransomware begins with scanning for the specific file types the virus will encrypt. These file types include often used files, such as files with the following extensions:

“PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRFEncodedFiles .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJR.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG”

Dharma ransomware may skip encrypting files in the folders we mentioned below, as they are system folders of Windows and the victim still needs his or her computer to pay the ransom:

  • %Local%
  • %Temp%
  • %Windows%
  • %System%
  • %Program Files%
  • %System32%

The encryption process itself comprises of several chain of actions that take place. To sum those up, Dharma simply creates a copy of your original file, which it encrypts and adds the .bgtx file extension plus a unique ID and the e-mail of the crooks(decrypt@fros.cc). Dharma ransomware then deletes the original file, leaving only the encrypted file, looking like the image below shows:


How to Remove Dharma and Restore .bgtx Encrypted Files

Removing Dharma ransomware does require some technical expertise. This is why, before trying the removal yourself, we do advise that you backup your files, even if they are encoded.

For the removal, you can follow the instructions we have prepared for you below and use them plus the data in this article to help you remove Dharma manually. If manual removal does not seem to help or you feel unsure that you have removed Dharma from your PC, the best method according to researchers is to remove the virus files, using an advanced anti-malware program. Such specific tool will try to scan for and automatically get rid of all Dhamra .bgtx – related files and objects and then erase them permanently. It also has protection mechanisms that will actively protect your PC against future intrusive programs or viruses.

If you want to decrypt files, encrypted by Dharma, we strongly recommend that you follow the instructions in step “2. Try to restore files..” below. It is no guarantee to help you restore all of the files encrypted by this Dharma variant, but it may help you recover at least some of the files.

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.

More Posts - Website

Follow Me:
Twitter


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 Dharma .bgtx Ransomware from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx Ransomware.

Ransomware infections and Dharma .bgtx 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 Dharma .bgtx Ransomware from Mac OS X.


Step 1: Uninstall Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx Ransomware.

Ransomware infections and Dharma .bgtx 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.


Dharma .bgtx Ransomware FAQ

What is Dharma .bgtx Ransomware ransomware and how does it work?

Dharma .bgtx 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 Dharma .bgtx Ransomware ransomware infect my computer?

Via several ways.Dharma .bgtx 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 Dharma .bgtx 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 .Dharma .bgtx Ransomware files?

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

One way to restore files, encrypted by Dharma .bgtx 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 ".Dharma .bgtx 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 .Dharma .bgtx 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 Dharma .bgtx 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 Dharma .bgtx Ransomware ransomware and then remove it without causing any additional harm to your important .Dharma .bgtx Ransomware files.

Also, keep in mind that viruses like Dharma .bgtx 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.

Leave a Comment

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

Time limit is exhausted. Please reload CAPTCHA.

Share on Facebook Share
Loading...
Share on Twitter Tweet
Loading...
Share on Google Plus Share
Loading...
Share on Linkedin Share
Loading...
Share on Digg Share
Share on Reddit Share
Loading...
Share on Stumbleupon Share
Loading...