What Is Exten Virus?
Exten virus (.exten files) is another nasty ransomware infection that is aimed only at your files. This threat may extort you in a variety of ways to get you to pay the criminals behind it hundreds of dollars in the form of BitCoin. The main idea here is for these crooks to use sophisticated encryption to “lock” your files and hold them as hostages until you pay a ransom to get the files to work once again.
Read this instructive article to understand how you can remove the Exten virus safely and try to get .exten files to work again.
Exten Virus Summary
Name | Exten |
File Extension | .exten |
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 Exten ransomware will encrypt your files by appending the .exten extension to them. |
Ransom Demanding Note | readme.txt |
Distribution Method | Spam Emails, Email Attachments |
Detection Tool |
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User Experience | Join Our Forum to Discuss Exten virus. |
Exten Virus – What We Know About It
Extend virus may end up being installed on your computer in the two following ways:
- If it gets sent to you via e-mail as an attachment.
- If the virus is downloaded as software from a low reputation site.
In case the infection scenario is e-mail, then this virus may pretend, like it is a document that you have to open, due to utmost importance. Examples we have seen are plane tickers, invoices, or something work-related.
If the infection is done by downloading a file, then this file is likely pretending to be some software, like an installer, portable app, crack fix or patch.
Whatever the infection scenario is, once Exten virus ends up on your computer it will act similar to the newer viruses we have detected. Other similar threats to this ransomware we recently saw are Foo virus, Mifr Ransomware, SUMMON virus and others.
The virus begins its malicious activities on your computer by downloading its modules, or virus files. It may set them in the following Windows directories:
- %ProgramData%.
- %Windows%.
- %System%.
- %system32%.
- %Roaming%.
- %AppData%
- %LocalLow%.>
- %Temp%.
- %Local%
Once this is done, Exten ransomware may run a process in the background of your Windows computer. This process will likely scan for and encrypt the following types of files on your machine.
- Documents.
- Music.
- Video files.
- Archive file formats.
- Image files.
- Virtual drive files.
- Other often-used file types.
But not only this – the virus may also make sure you cannot recover the files after encrypting them. This is why it may use the vssadmin system command in Windows PowerShell to delete the shadow copies and disable Windows Recovery.
.exten Files
After this ransomware encrypts the files, they cannot be opened in any way. The only way to open the files is if you reverse the encryption, which requires a decryption key. Criminals provide it for hundreds of dollars, but in many scenarios malware, researchers often devise a free decryption software if they crack this virus.
The files carry the .exten suffix and they look like the following:
Keep reading this article to learn how to safely remove this virus and try to restore your files.
Remove Exten Virus and Try to Restore Files
Exten virus can be deleted from your computer if you follow the removal instructions below carefully. For maximum effectiveness, we advise to make sure to delete the virus using a professional anti-malware program. Such software is made to thoroughly scan your computer and delete all of the virus files safely.
To recover files, we suggest that you do a backup of them and try the alternative methods for file restore we have suggested below. They are not a direct solution, but you may restore a lot of files using them, as our user feedback shows.
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.
How to Remove Exten virus from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Exten virus





Step 2: Uninstall Exten virus 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:



Step 3: Clean any registries, created by Exten 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 Exten virus 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: Scan for Exten virus with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by Exten virus.
Ransomware infections and Exten 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 top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
Get rid of Exten virus from Mac OS X.
Step 1: Uninstall Exten virus 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:
- 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 Exten virus 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:
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 Exten virus.
Ransomware infections and Exten 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 top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
Exten virus FAQ
What is Exten virus ransomware and how does it work?
Exten 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 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 Exten virus ransomware infect my computer?
Via several ways.Exten virus 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 Exten 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 .Exten virus files?
You can't. At this point the .Exten virus 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 .Exten virus files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by Exten virus 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 ".Exten virus" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Exten virus 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 Exten virus 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 Exten virus ransomware and then remove it without causing any additional harm to your important .Exten virus files.
Also, keep in mind that viruses like Exten virus 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.