What Is Jhdd Virus?
Jhdd virus is the kind of ransomware, which encrypts your files and then demands you to pay a ransom in order to get the files to work again. This particular threat has been reported to be a part of a large scale ransomware operation, that is reported to be known under the name STOP/DJVU. It is characterised by the .jhdd file extension and the _readme.txt ransom note it uses to give the victims ransom instructions on how to pay the ransom.
Read this article if you want to understand more information about how you can fully get rid of Jhdd virus and try to fix your files without having to pay a ransom.
Jhdd Virus Summary
Name | Jhdd virus, also known as UDS:Trojan.Win32.Chapak.gen, Ransom:Win32/StopCrypt.KM!MTB, Win32:PWSX-gen [Trj], Win32:PWSX-gen [Trj], A Variant Of Win32/GenKryptik.FHJB – more detections of this virus on VirusTotal |
File Extension | .jhdd |
Type | Ransomware, Cryptovirus |
Short Description | The ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them. |
Symptoms | The Jhdd Virus ransomware will encrypt your files by appending the .jhdd extension to them. |
Ransom Demanding Note | _readme.txt |
Distribution Method | Spam Emails, Email Attachments |
Detection Tool |
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Jhdd Virus – How Did I Get Infected?
Jhdd virus is just like the .hajd, .qall and .ghas variants of STOP/DJVU ransomware which have recently been spotted. The following methods may be the reasons how these versions ended up on your computer:
- If downloaded from some shady third-party software download site.
- If you have received it in the form of an e-mail attachment or a URL in your e-mail inbox.
If sent to you by mail, then the Jhdd virus may appear like a legitimate and extremely important document, for example:
- Invoice files.
- Receipt documents.
- Work-related documents.
- E-Tickets of some kind (flights, train, events).
In this case, those infection files may seem like they are legitimate, but once you open and execute them, you may start seeing the following infection process:
Jhdd virus is the kind of malware that may also cause an infection after being downloaded from some type of software provider website, where it may seem like the following files:
- Patches for programs or games.
- Crack-fixes or activators for software or games.
- Keygens or key generators.
- SFX (self extracting) or regular archive files.
- Cracked applications or portable apps.
Jhdd Virus – What Does It Do?
Jhdd virus is the type of malware that may first connect to the server operated by the criminals. From there it may download its virus payload files, some of which known as module files. These objects may be located in the following directories of Windows:
- %AppData%
- %SystemDrive%
- %Local%
- %LocalLow%
- %Windows%
- %Temp%
- %System%
- %system32%
Jhdd virus also leaves its _readme.txt ransom note file. It has the following message directed towards victims:
The Windows Registry Editor is one of the targeted areas on your computer, in case Jhdd virus infects it. It may set value entries with malicious data in the Run and RunOnce sub-keys:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
What Are .jhdd Files
The .jhdd files are encoded by this malware using the strong AES Encryption algorithm. The main problem with it is that it is very strong and makes decrypting files almost impossible.
The Jhdd virus scans for the following file types for encryption:
- Audio file formats (.mp3, .wav, etc.).
- Different picture file types (.jpg, .png, .etc).
- Files that are archives (.zip, .rar, etc).
- Various sorts of documents (.docx, .pptx, etc.).
- Video file formats (.mp4, .avi, etc.).
- Other files.
After the encryption procedure has completed, the virus may leave your files appearing like the following:
Picture.jpg.jhdd
How to Remove Jhdd Virus?
Jhdd virus can you technically be delete it if you follow the removal instructions below. They have been made to help you delete the virus either by yourself or automatically. If you lack the time in doing the removal yourself or simply the experience and confidence in deleting this threat, our main suggestion is using a professional anti-malware software. Such a program is specifically designed to effectively help you get rid of this virus automatically by performing a thorough scan of all of your files and objects.
How to Decrypt .jhdd Files?
encrypted STOP Ransomware Decryption Steps
Video guide for using the STOP Ransomware Decryptor:
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for Jhdd with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall Jhdd 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:
Step 3: Clean any registries, created by Jhdd 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 Jhdd there. This can happen by following the steps underneath:
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 Jhdd
Step 5: Try to Restore Files Encrypted by Jhdd.
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 Jhdd 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.
Jhdd-FAQ
What is Jhdd Ransomware?
Jhdd 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 Jhdd 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 Jhdd Infect?
Via several ways.Jhdd 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 Jhdd 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 .Jhdd files?
You can't without a decryptor. At this point, the .Jhdd 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 .Jhdd files successfully, then do not despair, because this virus is still new.
Can I Restore ".Jhdd" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Jhdd 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 Jhdd 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 Jhdd ransomware and then remove it without causing any additional harm to your important .Jhdd 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 Jhdd 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 Jhdd Research
The content we publish on SensorsTechForum.com, this Jhdd 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 Jhdd 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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