Cryptre Ransomware - How to Remove It
THREAT REMOVAL

Cryptre Ransomware Virus – How to Remove It

This article has been created with the main idea to help explain what is the Cryptre files virus and how you can remove it from your computer and try to recover .encrypted files.

New ransomware virus, called Cryptre has been detected by security researchers. The ransomware is a new variant of the CryptoWire virus and still uses the .encrypted file extension which it adds to the files, encroded by it. The virus then displays a ransom interface with message for victims to pay a hefty ransom in order to get their files back, usually in BitCoin or other cryptocurrencies. If your computer has been affected by the Cryptre ransomware virus, we recommend that you read the following article thoroughly.

Threat Summary

NameCryptre Ransomware
TypeRansomware, Cryptovirus
Short DescriptionA variant of CryptoWire ransomware. Aims to encrypt the files and then extort the owner of the victim PC to pay ransom.
SymptomsA ransom note pops up, called Cryptre. Files have the .encrypted extension and cannot be opened.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by Cryptre Ransomware

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Cryptre Ransomware.
Data Recovery ToolWindows 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.

Cryptre Ransomware – Distribution Methods

The Cryptre ransomware may be replciated in methods that are very similar to the methods that were used by CryptoWire ransomware, since it is an evolved variant of it. The infection may be conducted with the aid of different tools that aim to help it infect computers successfully:

  • JavaScript that is malicious (via URLs, .wsf, .js type of files).
  • Malicious HTML (.html, .htm, .hta and else).
  • Obfuscators that may conceal the malicious files of Cryptre from any antivirus programs.
  • File Joiners that may combine malicious Macros with legitimate Microsoft Word or Adobe Reader .pdf files.
  • Malicious servers to control the payload and the infection.
  • Tools that help the virus spread via spam.
  • Spamming services of other hackers selling such in the dark web.

These tools may be used to spread Cryptre ransowmare via various different propagation methods, such as via e-mail, via reddit or other forums, via social media accounts and many other methods. In some cases spam bots may create duplicate Facebook accounts to spread the virus files on big social media sites. Whatever the situation is, once Cryptre takes over your computer, the infection becomes inevitable.

Cryptre Ransomware – More Information

This virus is particularly interesting because it uses an advanced encryption mode, but it was also detected to have a lockscreen component that may not be active, but if it is activated, it may deny users access to their PCs. In addition to this, the

When it infects a computer, Cryptre ransomware may drop it’s payload in system directories of Windows, like the following ones:

  • %AppData%
  • %Local%
  • %Roaming%
  • %LocalLow%
  • %Temp%

Among the files dropped on the victim PC, Cryptre ransomware also drops it’s main payload file, which has been reported at VirusTotal to have the following parameters:

→ SHA-256: 3416bdb49c534fc05c4c2de19063c1227fbc4489edb0cabdef438f459cfeba24
Name:Windows Update.exe
Size: 881.5 KB

Besides the main virus, file, the ransomware also drops a random file executable, which may run the following commands to delete the shadow copies of the infected computer:

→ vssadmin.exe Delete Shadows /All /Quiet
bcdedit /set {default} recoveryenabled No
bcdedit /set {default} bootstatuspolicy ignoreall

Among the dropped files is the ransom note of Cryptre ransomware which contains the following information:

Cryptre Ransomware – Encryption

The Cryptre ransomware is the type of virus which has been created to hold your files hostage via encryption. To succeed in it’s mission, the virus uses the AES-256 encryption algorithm. This cipher aims to encrypt the files on your computer and then generate an assymetric decryption key that can be unlocked only by the cyber-criminals in order to decode your files. The encrypted files are appended the .encrypted extension and they look like the following:

The Cryptre ransomware may target different files to succeed its encryption goal by what summarizes them is that all of the encrypted files are often used ones, like videos, audio files, images and other file types of this sort.

Remove Cryptre Ransomware and Restore Encrypted Files

To remove Cryptre ransomware, we recommend that you follow the removal instructions underneath this article. They have been created with the primary prupose to assist you into removing the virus files either manually or automatically. If the manual removal does not seem to help you out, then experts strongly advise to automatically remove the Cryptre ransomware with the aid of a powerful anti-malware software, whose main puprose is to detect all of the files and objects in association with this ransomware and use them to remove the virus effectively.

If you want to restore files, encyrpted by Cryptre ransomware, you are welcome to try out the alternative methods for file recovery underneath. They may not be a 100% guarantee to be able to recover all of your files, but with their aid, you might be able to restore at least some of te data.

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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