This blog post is made to explain what is the .AUF variant of Dharma ransomware virus and how you can try to remove it and attempt to recover .AUF encrypted files.
Yet another version, belonging to the CrySis/Dharma ransomware family has been detected. The malware appends the .AUF file extension to the files which are encrypted by it and then asks victims to pay ransom in BitCoin to get the files to work once again. If your computer has been attacked by the .AUF variant of Dharma ransomware, we suggest that you read this article as it will help you to understand more about the virus’s activity, encryption and removal.
Threat Summary
| Name | .AUF Dharma Virus |
| Type | Ransomware, Cryptovirus |
| Short Description | Aims to encrypt the files on the computers that have been infected by it and then add the .AUF file extension to the encoded files to extort victims to pay ransom to get them back. |
| Symptoms | Files cannot be opened and have the .AUF suffix added to them. The virus drops a ransom note, containing the extortionist message and the e-mail decisivekey@tutanota.com. |
| Distribution Method | Spam Emails, Email Attachments, Executable files |
| Detection Tool |
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User Experience | Join Our Forum to Discuss .AUF Dharma Virus. |
| 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. |
.AUF Dharma Virus – Infection
There are several possible infection strategies that may be used to conduct infection activities with the .AUF variant of Dharma ransomware. These often include the usage of malicious files or web links. The first and most common method is to spread an infection file of this Dharma variant is via malicious e-mails that are directly sent to victims via various different types of spam campaigns. These campaigns carry attachments that may contain:
- Malicious macro-enabled documents.
- Files that lead to malicous macro documents.
- JavaScript files.
- Executable files.
- Other types of infection files.
In addition to this, the ransomware virus may also attack you passively by uploading the malicious files over the web. There, they may reside patiently waiting to be downloaded, while posing as:
- Cracks.
- Patches.
- Keygens.
- License updaters.
- Portable programs.
- Setups.
.AUF Dharma Ransomware – Activity
Similar to other Dharma ransomware variants, like the .combo one, the .AUF virus aims to encrypt the files and then get the victims to pay ransom to get them back. Most of the viruses hsare similar code, and they may also be similar in the way they encrypt their files.
When the .AUF variant of Dharma ransomware infects your PC, the malware may run the following actions on your computer:
- Mutex creation.
- Windows Registry Editor modifications.
- Deletion of backups.
- Creation of scheduled tasks.
- System recovery disabling.
- Changing of wallpapers and running of files automatically.
- Modifying system files.
The .AUF variant of Dharma ransomware first drops the malicious files on the victim PC, where they may have different types of names, for example:
After dropping the malicious files on the computers of victims, the .AUF variant of Dharma ransomware may also attack the Run and RunOnce registry sub-keys of the infected computer. They are sub-keys, located in the Windows Registry Editor and are responsible for running files on Windows start up. In them, Dharma may create value entries with the location of the malicious files it wants to run on Windows start up:
→ HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\
In addition to this, the latest iteration of Dharma ransomware, may also delete the backed up files on your computer by executing the following command as an administrator in Windows Command Prompt:
→ 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 ransomware may also drop it’s ransom note file, which appears like the following:
Dharma .AUF Virus – Encryption Process
Dharma ransomware aims to encrypt the following files on your computer:
→ .ebd, .jbc, .pst, .ost, .tib, .tbk, .bak, .bac, .abk, .as4, .asd, .ashbak, .backup, .bck, .bdb, .bk1, .bkc, .bkf,
.bkp, .boe, .bpa, .bpd, .bup, .cmb, .fbf, .fbw, .fh, .ful, .gho, .ipd, .nb7, .nba, .nbd, .nbf, .nbi, .nbu, .nco,
.oeb, .old, .qic, .sn1, .sn2, .sna, .spi, .stg, .uci, .win, .xbk, .iso, .htm, .html, .mht, .p7, .p7c, .pem, .sgn,
.sec, .cer, .csr, .djvu, .der, .stl, .crt, .p7b, .pfx, .fb, .fb2, .tif, .tiff, .pdf, .doc, .docx, .docm, .rtf,
.xls, .xlsx, .xlsm, .ppt, .pptx, .ppsx, .txt, .cdr, .jpe, .jpg, .jpeg, .png, .bmp, .jiff, .jpf, .ply, .pov, .raw,
.cf, .cfn, .tbn, .xcf, .xof, .key, .eml, .tbb, .dwf, .egg, .fc2, .fcz, .fg, .fp3, .pab, .oab, .psd, .psb, .pcx,
.dwg, .dws, .dxe, .zip, .zipx, .7z, .rar, .rev, .afp, .bfa, .bpk, .bsk, .enc, .rzk, .rzx, .sef, .shy, .snk, .accdb,
.ldf, .accdc, .adp, .dbc, .dbx, .dbf, .dbt, .dxl, .edb, .eql, .mdb, .mxl, .mdf, .sql, .sqlite, .sqlite3, .sqlitedb,
.kdb, .kdbx, .1cd, .dt, .erf, .lgp, .md, .epf, .efb, .eis, .efn, .emd, .emr, .end, .eog, .erb, .ebn, .ebb, .prefab,
.jif, .wor, .csv, .msg, .msf, .kwm, .pwm, .ai, .eps, .abd, .repx, .oxps, .dot.
The encryption is conducted with the aid of AES encryption algorithm, also known as Advanced Encryption Standard. After the encryption has finished, the files are left with the .AUF file extension and they can no longer be opened:
Remove Dharma Ransomware and Restore .AUF Encrypted Files
If you want to remove this Dharma ransomware variant, we would suggest that you follow the removal instructions that are underneath this article. They have been created with the main purpose of helping you remove as many virus files as possible. If manual removal does not seem to have any effect, however, we would advise you to do what most cyber-security experts would and run a scan on your PC, using an advanced anti-malware software. Such program aims to not only automatically detect and delete all malicious files and objects, but will also protect your machine against future infections as well.
If your goal is to recover files, encrypted by Dharma ransomware, we will have you know that you can try using the methods we have liste in the “Try to restore” step below. They may not be a complete guarantee to be able to recover all the files, but with their aid you might be able to restore at least some data.
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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Step 1: Scan for .AUF Dharma Virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .AUF Dharma Virus and related malware 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:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by .AUF Dharma Virus 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 .AUF Dharma Virus there. This can happen by following the steps underneath:
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.
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: Boot Your PC In Safe Mode to isolate and remove .AUF Dharma Virus
Step 5: Try to Restore Files Encrypted by .AUF Dharma Virus.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and .AUF Dharma Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
.AUF Dharma Virus-FAQ
What is .AUF Dharma Virus Ransomware?
.AUF Dharma Virus 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 algorithms 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.
What Does .AUF Dharma Virus Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does .AUF Dharma Virus Infect?
Via several ways..AUF Dharma Virus Ransomware infects computers by being sent via phishing emails, 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.
Another way you may become a victim of .AUF Dharma Virus 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 ..AUF Dharma Virus files?
You can't without a decryptor. At this point, the ..AUF Dharma Virus files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your ..AUF Dharma Virus files successfully, then do not despair, because this virus is still new.
Can I Restore "..AUF Dharma Virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..AUF Dharma Virus files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of .AUF Dharma Virus Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate .AUF Dharma Virus ransomware and then remove it without causing any additional harm to your important ..AUF Dharma Virus files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can .AUF Dharma Virus Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the .AUF Dharma Virus Research
The content we publish on SensorsTechForum.com, this .AUF Dharma Virus how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the .AUF Dharma Virus ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
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.
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- Always check "About Us" web page.
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