One of the most devastating file-encryption viruses – CryptXXX has released a new variant, that has been dubbed “Microsoft Decryptor”. The virus includes a link to a new web page and a fresh new ransom note. Another development of this virus is that it does not make any changes to the appearance of the encrypted files, meaning that it does not change their names or add custom file extensions, unlike the previous versions.
CryptXXX Uses Neutrino Exploit Kit
A Neutrino Exploit Kit detection has been analyzed by the researcher at SANS Internet Storm Center Brian Duncan to directly drop CryptXXX Ransomware’s files on infected computers. The Neutrino EK’s attack was done via injecting a malicious script from a compromised website, reportedly associated with the “pseudoDarkleech” malware campaign.
The researcher managed to find the IP address of the host injecting the Exploit Kit on the compromised computer to be 198.71.54.211.
In addition to that, it was also discovered that after the computer has been infected with the CryptXXX latest variant, the traffic let to the following host – 91.220.131.147.
The Neutrino Kit (Former Angler EK which is now dead) first sends a so-called Flash Exploit which is common in Zero-Day attacks, meaning that this script may take advantage of older versions of software components of Windows to infect the computer. One of those components may be an old version of Flash Player, for example.
After this has been done, the Exploit Kid initiates the actual payload dropping process, by executing another script and dropping the files and the ransom note of the virus from a remote host.
CryptXXX and Ransomware In General – Summary, More Information and Guidance
CryptXXX is a virus which has dealt a lot of damage to users and by some is even considered the leader regarding damage amongst other ransomware viruses. Not only this, but the virus has also featured previous versions that have broken decryptors. This was devastating for some users because their chances to decrypt CryptXXX encoded files significantly dropped down.
Here is related information about the previous versions of CryptXXX Ransomware which have been analyzed:
Remove CryptXXX Ransomware and Restore .crypt Encrypted Files
Remove CryptXXX 2.0 Ransomware and Restore .crypt Encrypted
Remove CryptXXX 3.0 Ransomware and Restore .Crypt Encrypted Files
CryptXXX Version 3.100 Updated With StillerX InfoStealer
Remove Cryp1 (UltraCrypter) Ransomware and Restore .Cryp1 Files
After the whole CryptXXX menace became huge, malware researchers all over the world united and stroke back, creating several working decryptors for the many variants of CryptXXX:
Cryp1 Decrypter – by Trend Micro
Rannoh Decryptor for CryptXXX’s 1st Version – by Kaspersky
Decrypting RSA Encrypted Files Using Factorization and Python – by various malware researchers
Users can also find instruction videos online to help them try decryption and successfully remove CryptXXX Ransomware which should be done swiftly:
The bottom line for Ransomware viruses like CryptXXX, in general, is that during the year 2016 it is experiencing a “boom” since more and more viruses come out. And due to the huge variety of viruses, variants and number of cyber-criminals, the job for the law to catch them is very challenging. What is even worse is that the Deep Web offers ransomware for prices that may range from hundreds to thousands of dollars. There is even a Hidden Tear project which is open source and with enough skill anyone can create a Ransomware virus for free. This is very dangerous, and we strongly advise users to increase the protection of their files.
This has concerned us as both users and researchers in this field, and this is why we have decided to see how users store their data and hopefully give tips on how to stay safe from the dynamic environment of the evolved 21st-century criminals.
To learn how to protect your data from malware, please check the following research:
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.
Follow Me:
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 CryptXXX from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove CryptXXX
Step 2: Uninstall CryptXXX 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 CryptXXX 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 CryptXXX 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 CryptXXX with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by CryptXXX.
Ransomware infections and CryptXXX 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 CryptXXX from Mac OS X.
Step 1: Uninstall CryptXXX 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 CryptXXX 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 CryptXXX.
Ransomware infections and CryptXXX 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.
CryptXXX FAQ
What is CryptXXX ransomware and how does it work?
CryptXXX 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 CryptXXX ransomware infect my computer?
Via several ways.CryptXXX 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 CryptXXX 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 .CryptXXX files?
You can't. At this point the .CryptXXX 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 .CryptXXX files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by CryptXXX 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 ".CryptXXX" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .CryptXXX 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 CryptXXX 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 CryptXXX ransomware and then remove it without causing any additional harm to your important .CryptXXX files.
Also, keep in mind that viruses like CryptXXX 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.
