This article provides information about DiskDoctor ransomware that belongs to the Scarab malware famaily. The threat encrypts important files and demands a ransom payment. By reaching the end of the article, you will know how to remove this ransomware and how to restore .DiskDoctor files.
DiskDoctor ransomware has been spotted to harass computer users around the globe. It is classified as data locker ransomware due to its main purpose to locate target files and encrypt them. Following encryption DiskDoctor drops a ransom note that extorts a ransom payment for a specific key that decrypts .DiskDoctor files.
Threat Summary
| Name | DiskDoctor |
| Type | Ransomware, Cryptovirus |
| Short Description | A data locker ransomware that utilizes AES cihper algorithm to encrypt target files stored on the infected computer. Then it demands a ransom for a specific decryption solution. |
| Symptoms | Important files are locked and renamed with .DiskDoctor extension. The access to the information they store remains restricted. Hackers demand a ransom for decryption solution. |
| 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 DiskDoctor. |
| 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. |
DiskDoctor Ransomware – Distribution
The payload file that triggers DiskDoctor ransomware infection could be spread with the help of shady techniques that trick users into infecting their systems. Mainly are used deceptive email attachments and compromised web pages.
Email attachments that deliver the payload on target computer systems usually are part of emails with spoofed sender and address. A common practice of cybercriminals is the creation of email campaigns that impersonate representatives of a well-known institution or business services including PayPal, DHL, FedEx, and Amazon. This way they attempt to trick users into opening malicious email attachments on their PCs. Such an action leads to an infection with DiskDoctor ransomware.
Some of the emails used for the spread of DiskDoctor’s payload may lack file attachments but present in-text links instead. In this case a click on the link opens a compromised web page that may be set to cause an unnoticed download of malicious scripts on the device. With the help of these scripts the ransomware infection code sneaks into the system and becomes able to plague it.
Your system has been infected with the help of another technique? Leave a comment and share with us what happened.
DiskDoctor Ransomware – Overview
DiskDoctor ransomware is mainly meant to encrypt files that store valuable information. But before the encryption process, it needs to establish its malicious files on the system and perform several system modifications.
Malicious files and objects associated with this new Scarab ransomware version dubbed DiskDoctor may be dropped or created in the following system folders:
- %AppData%
- %Local%
- %LocalLow%
- %Roaming%
- %Temp%
- %Windows%
Some of the files may be self-deleting executables that stay on the system only during the infection process. Others are likely to remain steadily on it so they can start the ransomware on each system start. In order to set its malicious files to auto-execute on each system start, DiskDoctor exploits the functionalities of Run and RunOnce registry sub-keys.
A specific trait of DiskDoctor crypto virus is the ransom note it uses to instruct infected users how to act further if they want to obtain the decryption key. The note is contained in a TXT file called HOW TO RECOVER ENCRYPTED FILES.TXT that could appear on the PC screen at the end of the attack. And here is the message it reads:
Warning all your files are encrypted !!!
To receive the decoder, you must send an email to the email address with your personal ID:
DiskDoctor@protonmail.com
In response you will receive further instructions.
ATTENTION !!!
* Do not attempt to uninstall the program or run antivirus software.
* Attempts to self-decrypt files will result in the loss of your data.
* Decoders of other users are incompatible with your data, as each user has a unique encryption key.
Your personal identifier:
6A02000000000000***95611F
Beware! Contacting hackers could lead to additional misuses of sensitive data. Furthermore, there is no guarantee that they could provide a working decryption solution. They can try to scam you and make you a victim of their malicious intentions once again.
DiskDoctor Ransomware – Encryption Process
All initial system modifications primarily support the completion of the encryption stage. DiskDoctor is a threat that mainly aims to corrupt specific files stored on the compromised host. The encryption cipher used by DiskDoctor is known to be AES. With the help of this cipher the ransomware changes completely the code of target data. So an infection with DiskDoctor you could find all files listed below encrypted:
- Audio files
- Video files
- Document files
- Image files
- Backup files
- Banking credentials, etc
After encryption, all corrupted files have the extension .DiskDoctor appended to their names. The access to the information stored by .DiskDoctor files is restricted and hackers demand a ransom payment for a specific decryption key.
The DiskDoctor may also erase all the Shadow Volume Copies from the Windows operating system with the help of the following command:
→vssadmin.exe delete shadows /all /Quiet
The above-stated command eliminates one of the prominent ways for .DiskDoctor files recovery. Luckily, for the recovery process could be utilized some alternative solutions. In the guide that follows you could find out how to use some of them and potentially restore a few to all .DiskDoctor files.
Remove DiskDoctor Ransomware and Restore Files
The removal of DiskDoctor ransomware demands a bit of technical experience and ability to recognize traits of malware files. And there is no doubt that you should remove this nasty threat from the infected PC as soon as you detect it. Otherwise, it has the chance to spread its infection files among the whole network. Below you could find how to remove it step by step. Beware that ransomware has highly complex code that could plague not only your files but your whole system. So as recommended by security researchers you need to utilize an advanced anti-malware tool for its complete removal. Such tool will keep your system protected against devastating threats like DiskDoctor and other kinds of malware that endanger your online security.
After you remove the ransomware make sure to check the “Restore Files” step listed in the guide below. But before you take any further actions, don’t forget to back up all encrypted files to an external drive in order to prevent their irreversible loss.
Gergana Ivanova
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
Follow Me:
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for DiskDoctor with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall DiskDoctor 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 DiskDoctor 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 DiskDoctor 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 DiskDoctor
Step 5: Try to Restore Files Encrypted by DiskDoctor.
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 DiskDoctor 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.
DiskDoctor-FAQ
What is DiskDoctor Ransomware?
DiskDoctor 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 DiskDoctor 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 DiskDoctor Infect?
Via several ways.DiskDoctor 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 DiskDoctor 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 .DiskDoctor files?
You can't without a decryptor. At this point, the .DiskDoctor 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 .DiskDoctor files successfully, then do not despair, because this virus is still new.
Can I Restore ".DiskDoctor" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .DiskDoctor 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 DiskDoctor 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 DiskDoctor ransomware and then remove it without causing any additional harm to your important .DiskDoctor 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 DiskDoctor 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 DiskDoctor Research
The content we publish on SensorsTechForum.com, this DiskDoctor 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 DiskDoctor 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.
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.