A ransomware virus, carrying the name Flyper, based on the HiddenTear virus project has been caught out in the wild to infect user PCs. The virus uses a very strong RSA-2048 file encryption mechanism to encipher the files of unsuspecting users, adding it’s distinctive .flyper file extension to the encrypted files. Users are asked in an instructions.txt file to pay in BitCoin a ransom payoff to cyber criminals. Everyone who has been affected by the Flyper virus are warned NOT to pay the ransom money, since there may be alternative methods to decrypt your files. We have provided further instructions on removing Flyper ransomware from your computer and trying to restore your files, so we suggest to read this article carefully.
Threat Summary
| Name | Flyper |
| Type | Ransomware |
| Short Description | The malware encrypts users files using a strong encryption algorithm, making direct decryption possible only via a unique decryption key available to the cyber-criminals. |
| Symptoms | The user may witness ransom notes and “instructions.txt” all linking to a web page and a decryptor. Changed file names and the file-extension .flyper has been used. Also changes the wallpaper to a “You have been hacked!” message. |
| Distribution Method | Via an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner. |
| Detection Tool | See If Your System Has Been Affected by malware Download Malware Removal Tool |
| User Experience | Join our forum to Discuss Flyper Ransomware. |
| 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. |
Flyper Ransomware – How Does It Spread
To infect users, Flyper uses a file that has a very long name, for example:
The file itself is an executable type of file, but it is cleverly masked to resemble an Adobe Reader .pdf file. Such files may be disguised on spam e-mail addresses as well as dropped on your computer via other malware, like Trojan.Downloader, for example. They may also be downloaded via a malicious URL that you may have landed on as a result of a potentially unwatned program that displays ads on your computer.
Flyper Ransomware – More Information
As soon as the malicious file of Flyper has been activated, it may briefly freeze your computer and the opened Windows may enter “Not Responding” state.
Then a command prompt window may open, suggesting the Flyper virus also deletes the shadow volume copies using the following command:
After erasting the shadow copies, the Flyper virus immediately gets down to business. It scans for most Widely used type of file extension and if they are present on the computer, the virus encrypts them:
The ransomware then displays a text document, named Instructions.txt. The ransom not in it notifies the users his files are encoded and gives further instructions on how to pay the ransom money in BitCoin:
We present a decrypter software which allows to decrypt and return control to all your encrypted files.
We accept a payment with Bitcoin, there are many methods to get them.
On these sites you can buy Bitcoin
Localbitcoin.com cex.io btcdirect.eu
To get KEY and Decrypter Program :
1)Send 0.5 BTC bitcoins to this address with Description your PC Computer Name
Bitcoin Address 1PniPmm5kiuuAhXpBWR3QiUtpfAAFm2SS
2)Contact me by email to get your key
Flyper01@sigaint.org”
Since this is a part of the open source HiddenTear projects, researchers may discover a decryption method and release a free decrypter.
Until then, users are advised to remove Flyper Ransowmare and try to restore their files, using the instructions provided below.
Remove Flyper Ransomware and Restore .Flyper Files
After Flyper attacks your computer and encrypts your files, the first advisable step is to remove it from your PC. You can do this by following the step-by-step instructions below. Malware reverse engineers also advise using a more automatic approach and downloading an advanced anti-malware program to remove this virus from your computer.
If you want to try and restore your files, please check the alternative methods in step “3. Restore files Encrypted by Flyper” below.
Furthermore, we also advise you to follow this article since we will update it as soon as a decrypter for Flyper has been released.
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.
How to Remove Flyper from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Flyper
Step 2: Uninstall Flyper 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:
Follow the instructions above and you will successfully uninstall most programs.Step 3: Clean any registries, created by Flyper 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 Flyper 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: Scan for Flyper with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by Flyper.
Ransomware infections and Flyper 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 Flyper from Mac OS X.
Step 1: Uninstall Flyper 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 Flyper 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 Flyper.
Ransomware infections and Flyper 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.
Flyper FAQ
What is Flyper ransomware and how does it work?
Flyper 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 Flyper ransomware infect my computer?
Via several ways.Flyper 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 Flyper 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 .Flyper files?
You can't. At this point the .Flyper 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 .Flyper files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by Flyper 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 ".Flyper" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Flyper 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 Flyper 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 Flyper ransomware and then remove it without causing any additional harm to your important .Flyper files.
Also, keep in mind that viruses like Flyper 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.
