What Is Dewd Virus?
Dewd virus is a STOP/DJVU ransomware variant. These are cryptoviruses with the main purpose to get inside your computer system and begin encrypting your files in order to make a profit by extorting you in the bank the criminals a ransom in the form of Bitcoin which is hundreds of dollars worth. This particular version of the virus uses the .dewd file extension and _readme.txt ransom note. The main objective of this note is to contain all of the necessary information directed toward the victims that contain the demands of the criminals.
Read this article if you want to understand more information about how this virus got into your computer in the first place, how it locks your files and what you can do to recover them and make them functional.
Dewd Virus Summary
| Name | Dewd 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 | .dewd |
| 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 Dewd Virus ransomware will encrypt your files by appending the .Dewd extension to them. |
| Ransom Demanding Note | _readme.txt |
| Distribution Method | Spam Emails, Email Attachments |
| Detection Tool |
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Dewd Virus – How Did I Get Infected?
Dewd virus it’s very similar to the other versions of this nasty infection family, like the recently detected .hajd, .qall and .ghas ones, for instance.
Dewd virus may end up on your computer system via one of the two following ways which have been the reasons for most of the reports related to this threat:
- 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 your computer was infected by this virus as a result of an email attachment that may have been sent to you, then it is very likely that this file pretends to be one of the following kinds of documents:
- Invoice files.
- Receipt documents.
- Work-related documents.
- E-Tickets of some kind (flights, train, events).
Downloading and executing such a file may trigger the following infection process, including malicious macro code:
Another method via which this virus may cause an infection on your computer system is very likely if it downloaded on your computer system via some type of a third-party website that may have made it appear as if it is an executable file that is legitimate, for example:
- Patches for programs or games.
- SFX (self extracting) or regular archive files.
- Cracked applications or portable apps.
- Crack-fixes or activators for software or games.
- Keyegens or key generators.
Dewd Virus – What Does It Do?
Once the Dewd virus causes infection on your computer system, it may connect to a remote server, from where it could initiate a silent download of its malicious payload files, also known as modules.
- %SystemDrive%
- %Local%
- %LocalLow%
- %AppData%
- %Windows%
- %Temp%
- %System%
- %system32%
Among the files that are left on your machine is also the Dewd _readme.txt ransom note of this virus, which has the following instructional message for victims:
The virus may also cause changes in the Windows Registry Editor. There it may set value entries in different sub-keys, like the following:
- 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 .dewd Files
The .dewd files are encoded using the AES Encryption algorithm. The virus may target the following files based on the file extensions they have:
- Files that are archives (.zip, .rar, etc).
- Various sorts of documents (.docx, .pptx, etc.).
- Audio file formats (.mp3, .wav, etc.).
- Different picture file types (.jpg, .png, .etc).
- Video file formats (.mp4, .avi, etc.).
- Other files.
Dewd virus then leaves the files in the following appearance:
Picture.jpg.dewd
How to Remove Dewd Virus?
Dewd virus can be removed from your computer system if you follow the removal steps beneath. They are created to contain the information that is necessary to get rid of this threat either by yourself or automatically. If you want the best possible solution, then we recommend that you remove the virus automatically by scanning your computer using professional anti-malware software. Such a program has been designed to perform a thorough check and automatically get rid of any malicious files and objects belonging to the virus.
How to Decrypt .dewd Files?
If you want to decrypt .dewd virus files that are encrypted, then we strongly recommend that you follow the STOP Ransomware Decryption Steps. They include instructions on how to use the STOP Decrypter, tool created by independent malware researchers and designed in order to decrypt all of your files that have an offline key. If your decryption key is online, then we suggest trying the alternative file recovery methods below. They are designed in order to help you try and restore as many files as possible, even though you should know they do not come with a 100% chance of file recovery success.
Video guide for using the STOP Ransomware Decryptor:
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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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.
About the Dewd Research
The content we publish on SensorsTechForum.com, this Dewd 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 Dewd 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.
References
1. How to Recognize Spam Emails with Ransomware
2. How Does Ransomware Encryption Work?
3. How to Decrypt Ransomware Files
4. Ransomware Getting Greedier and Bigger, Attacks Increase by 40%
5. 1 in 5 Americans Victim of Ransomware
How to Remove Dewd from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Dewd
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".
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 Dewd 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 Dewd 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 Dewd 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.
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 Dewd with SpyHunter Anti-Malware Tool
1. Click on the "Download" button to proceed to SpyHunter's download page.
2. After you have installed SpyHunter, wait for it to update automatically.
3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.
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.
Video Guide for Automatic and Fast Removal
Step 5 (Optional): Try to Restore Files Encrypted by Dewd.
Ransomware infections and Dewd 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 recommended Data Recovery software by clicking on the link underneath:
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.
Step 6: How to Restore Files Encrypted by Ransomware (Video Guide)
Get rid of Dewd from Mac OS X.
Step 1: Uninstall Dewd and remove related files and objects
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 Dewd:
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 Dewd. 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 Dewd. 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 Dewd 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:
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 Dewd. 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 3 (Optional): Try to Restore Files Encrypted by Dewd.
Ransomware infections and Dewd 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 recommended 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.
Dewd FAQ
What is Dewd ransomware and how does it work?
Dewd 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 Dewd ransomware infect my computer?
Via several ways.Dewd 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 Dewd 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 .Dewd files?
You can't. At this point the .Dewd 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 .Dewd files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by Dewd 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 ".Dewd" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Dewd 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 Dewd 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 Dewd ransomware and then remove it without causing any additional harm to your important .Dewd files.
Also, keep in mind that viruses like Dewd 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.
How to 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.
