A ransomware crypto-virus called Crypren popped up a couple of days ago. The virus will lock files and append an extension .encrypted to all of them. The ransom money that Crypren demands is around 45 US dollars. To see how to remove the ransomware and what you can try to restore your files, you should read this article to its end.
|Short Description||The ransomware encrypts files with .encrypted extension and demands a ransom of around 45 US dollars.|
|Symptoms||The ransomware targets around 60 different file extensions for encryption. READ_THIS_TO_DECRYPT.html file is created with instructions inside.|
|Distribution Method||Spam Emails, Email Attachments, Executable Files|
|Detection Tool|| See If Your System Has Been Affected by malware |
Malware Removal Tool
|User Experience||Join Our Forum to Discuss Crypren.|
|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.|
Crypren Ransomware – Delivery Methods
Crypren ransomware is delivered in a couple of ways. As most other ransomware viruses out there, spam emails are the common method of getting infected with this ransomware. The emails deliver the malicious code from attached files. These attachments come with a story of how you made a purchase of something or you are awaiting a shipment from eBay, DHL or other such nonsense.
Do not feel curious, because even just downloading the attachment can execute Crypren. Always check the exact email address of the sender and check in other ways if a purchase has been made from your account or you have some package coming.
Social media websites and services for file-sharing might also be a common way to spread this infection. The best prevention tactic is to steer clear of suspicious files and not click, nor download, any files or messages of unknown origin.
Crypren Ransomware – Description
Crypren is the name of this new encrypting ransomware virus. It emerged a couple of days ago, spreading with spam emails. The emails try to convince people that they have a shipment or some package to be delivered to them to attract their attention. If they open the attached file, their files get encrypted.
A file READ_THIS_TO_DECRYPT.html is created after successful encryption.
The file READ_THIS_TO_DECRYPT.html contains instructions for paying the ransom and is put in each folder that has encrypted files. The file can be seen in the picture down here:
The file reads the following:
YOUR PERSONAL FILES HAS BEEN ENCRYPTED
Your data (photos, documents, databases, etc.) have been encrypted with a private and unique key generated for this computer. This means that you will not be able to access your files anymore until they are decrypted. The private key is stored in our servers and the only way to receive your key to decrypt your files is making a payment.
The payment has to be done in Bitcoin to a unique address that we generated for you. Bitcoins are the virtual currency to make online payments. If you don’t know how to get Bitcoins, you can click the button “How to buy Bitcoins” below and follow the instructions. If you have problem with this task use internet.
You have only 1 week to submit the payment. When this time ends, the unique key will be destroyed and you won’t be able to recover your files anymore.
YOUR UNIQUE KEY WILL BE DESTROYED IN 1 WEEK FROM ENCRYPTION!
To recover your files, you must send 0,1 Bitcoins ( ~$37 ) to the next Bitcoin address…
The ransom note is pretty straight-forward. The price which is asked as ransom money is 45 US dollars, and to be paid within one week. According to the instructions, the price won’t rise after that period, but all of your files will get erased.
Do NOT pay the ransom. Doing so will only help fund the creator of this virus and possibly inspire him and others to make similar malware. You cannot know for sure if you will get your files back by paying. Plus, you have a week to restore your files – read further to find out how you can get your files back.
The Crypren ransomware encrypts files with around sixty different extensions. The encryption process is believed to use an RSA-2048 bit cryptosystem with 256-bit AES algorithm. The extensions that the ransomware seeks to encrypt are the following:
→.html, .jpg, .jpg2, .mdb, .mp3, .mp4, .mp4infovid, .mp4v, .pdf, .php, .php3, .png, .ppt, .pptm, .pptx, .accdb, .accde, .accdr, .accdt, .bmp, .cpp, .cs, .css, .csv, .csy, .doc, .docm, .docx, .docxml, .docz, .gif, .gzip, .py, .rar, .rar5, .rb, .rtf, .sql, .sqlite, .sqlite3, .sqlitedb, .swf, .swfhtml, .tar, .targz, .targz2, .tarlzma, .tarxz, .txt, .xlmv, .xls, .xlsm, .xlsx, .xml, .zip, .zipx
The list of file extensions given above might be incomplete, but these will be encrypted for sure. After the encryption process is finished, all of the files will have the same extension – .encrypted.
Crypren ransomware is known to delete Shadow Volume Copies from the Shadow Explorer process in the Windows Operating System.
Remove Crypren Ransomware and Restore .encrypted Files
If your computer is infected with the Crypren ransomware, you should have a bit experience with removing viruses. You should get rid of this ransomware as soon as possible because it can encrypt more files and spread deeper into the network. We recommend that you remove this ransomware and then follow the step-by-step instructions provided herein. There you will also find a decryptor.
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 Crypren from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Crypren
Step 2: Uninstall Crypren 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.
Step 3: Clean any registries, created by Crypren on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Crypren there. This can happen by following the steps underneath:
Step 4: Scan for Crypren with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by Crypren.
Ransomware infections and Crypren 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 Crypren from Mac OS X.
Step 1: Uninstall Crypren 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 Crypren 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:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove malware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Step 3 (Optional): Try to Restore Files Encrypted by Crypren on your Mac.
Ransomware for Mac Crypren aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money.
This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
What is Crypren ransomware and how does it work?
Crypren 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 Crypren ransomware infect my computer?
Via several ways.Crypren 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 Crypren 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 .Crypren files?
You can't. At this point the .Crypren 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 .Crypren files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by Crypren 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 ".Crypren" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Crypren 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 Crypren 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 Crypren ransomware and then remove it without causing any additional harm to your important .Crypren files.
Also, keep in mind that viruses like Crypren 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.