Click on screenshot to zoom
Danger level 7
Type: Trojans
Common infection symptoms:
  • Slow Computer
  • System crashes
  • Normal system programs crash immediatelly
  • Connects to the internet without permission
  • Installs itself without permissions
  • Can't be uninstalled via Control Panel

Crptxxx Ransomware

Whenever you open a new email message, you have to be careful to avoid the likes of Crptxxx Ransomware. It is a ransomware infection that enters target computers surreptitiously, and users then are left to deal with a barely functioning computer. Luckily, this program does not seem to spread far anymore, but if you end up getting infected with it, you still need to delete Crptxxx Ransomware for good. To be absolutely sure that you terminated this infection, please acquire a reliable antispyware application that will do most of the job for you. Also, please employ safe web browsing habits to avoid similar threats in the future.

The reason we are talking about email messages here is the fact that Crptxxx Ransomware spreads via spam email. Normally, spam email is filtered into the Junk folder, but lately the spam email campaigns have become sophisticated enough to avoid this filter and get into the main inbox. That is because spam emails pretend to be messages from online stores and financial institutions. Needless to say, you should be able to tell fake invoices from the real ones, but if you open an attachment absent-mindedly, you might as well get infected with Crptxxx Ransomware or any other ransomware program. Please note that most of them travel in a very similar manner!

According to our research, Crptxxx Ransomware may not be too active anymore because now there is a new infection out there. Btcware Ransomware must have replaced this program already, but we know enough about the previously released infection to tell you more about it in greater detail. For instance, we know that upon installation, Crptxxx Ransomware deletes the Shadow Copies from your computer, and this means that it makes it impossible for you to restore your files without the decryption tool or without an external backup.

What’s more, when the encryption is complete all the affected files have a new extension added to them. For example, image.jpg will look like image.jpg.crptxxx after the encryption. Also, our research has found that this program does not encrypt folders with strings “Windows” and “Internet Explorer.” It makes perfect sense because the infection still needs your system to run properly even when the encryption is complete. After all, if it encrypts all the system files, you will not be able to access the Internet and, consequently, the criminals behind Crptxxx Ransomware would not be able to receive the ransom fee. Hence, the infection does not touch upon your system files and the default web browser.

Also, we know that there are at least two different versions of this infection, and they have minor differences. They have different ransom notes, and they target different file types. The second version seems to target a lot more files, but even the infection with the short file list can cause quite a lot of damage to you. What’s more, both Crptxxx Ransomware versions require that you connect to the Tor browser (commonly used by cyber criminals for communication) and transfer the payment to the given address:

All your files have been encrypted with AES algorithm
For decrypt use this instructions:
Download tor browser
Run tor and go to: http://m5r2t7rwszffszra.onion

It also says that if the server is down, you should try reconnecting lately. But what is the server is down for good, and your files remain encrypted? Then you should look for other places where you might have saved your files. If you are an avid social media user, you should find quite a lot of media files saved on your social networking accounts. Also, you may have some of your files saved in your inbox or on your mobile device. If you keep an external backup drive where you regularly save copies of your files, it is the perfect solution!

As for the Crptxxx Ransomware infection, remove it immediately and do not look back. Protect your computer from similar intruders with a powerful antispyware tool. If you need more help with this infection, please do not hesitate to contact us. We are also ready to provide you with tips and guidelines on how to avoid similar infections. Your personal data security should be one of your top priorities, so you should everything you can to protect it.

How to Delete Crptxxx Ransomware

  1. Press Win+R and the Run prompt will open.
  2. Type regedit into the Open box. Press OK.
  3. Open HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run.
  4. Right-click the crptxxx entry on the right pane. Delete it.
  5. Close Registry Editor and press Win+R again.
  6. Type %AppData% and press OK.
  7. Remove the mtrea.exe file from the directory.
  8. Go to your Desktop.
  9. Remove the HOW_TO_FIX_!.txt or HOW_TO_DECRYPT.txt file.
  10. Run a full system scan.
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