How to remove Tianrui Ransomware and decrypt .tianrui files

What is Tianrui Ransomware

Tianrui Ransomware is a malicious program first discovered by security researchers during a submission inspection on VirusTotal, and falls into the category of ransomware-type viruses. Similar to other ransomware threats like Hush, MoneyIsTime, and Boramae, it encrypts files on the victim’s computer and demands a ransom for the decryption. Once files are encrypted, their original names are modified by appending a unique identifier followed by the .tianrui extension. For instance, a file initially named 1.jpg appears as 1.jpg.{uniqueID}.tianrui after encryption. This ransomware creates a ransom note titled README.TXT in every affected directory. The ransom note warns victims that failing to pay the ransom will lead to the public release of stolen data and further attacks.

Decryption of files encrypted by Tianrui Ransomware remains implausible without the attacker’s involvement, as it leverages strong cryptographic algorithms that make brute-forcing encryption keys untenable. Victims are advised against paying the ransom, as there is no guarantee that the cybercriminals will actually provide the decryption key. Current cybersecurity strategies emphasize the importance of maintaining regular backups of important data as the best form of protection, as there are no confirmed decryption tools available for this ransomware. If files are encrypted with the .tianrui extension, victims are encouraged to consult reliable cybersecurity forums or services like the No More Ransom Project for any newly available decryption solutions. Additionally, removing the ransomware from an infected device does not decrypt previously compromised files; therefore, prevention and maintaining secure backups remain paramount.

How Tianrui Ransomware infects computers

Tianrui Ransomware infiltrates computers primarily through phishing campaigns and social engineering tactics. Cybercriminals often disguise the ransomware as legitimate software or bundle it with regular files, spreading it via malicious email attachments, deceptive links, and compromised websites. These emails typically appear to be from trustworthy sources, tricking users into opening attachments or clicking on links that execute the malware. Once activated, the ransomware exploits vulnerabilities in the system or software, sometimes using trojans to facilitate the infection. In addition to email vectors, Tianrui can propagate through drive-by downloads on compromised websites and peer-to-peer file-sharing networks, as well as through the use of pirated software and fake updates, making it essential for users to exercise caution and employ robust security measures.

1. Download Tianrui Ransomware Removal Tool
2. Get decryption tool for .tianrui files
3. Recover encrypted files with Stellar Data Recovery Professional
4. Restore encrypted files with Windows Previous Versions
5. Restore files with Shadow Explorer
6. How to protect from threats like Tianrui Ransomware

Tianrui Ransomware files:


README.TXT
{randomname}.exe


Tianrui Ransomware registry keys:

no information

How to decrypt and restore .tianrui files

Use automated decryptors

Download Kaspersky RakhniDecryptor

Use the following tool from Kaspersky called Rakhni Decryptor, that can decrypt .tianrui files. Download it here:

Download RakhniDecryptor

There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .tianrui files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with Tianrui Ransomware and removed from your computer, you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually, you can do the following:

Use Stellar Data Recovery Professional to restore .tianrui files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select the type of files you want to restore and click Next button.
4. Choose the location where you would like to restore files from and click Scan button.
5. Preview found files, choose ones you will restore and click Recover.

Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

1. Right-click on infected file and choose Properties.
2. Select Previous Versions tab.
3. Choose a particular version of the file and click Copy.
4. To restore the selected file and replace the existing one, click on the Restore button.
5. In case there are no items in the list, choose an alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it, and you will see a screen listing of all the drives and the dates that shadow copy was created.
3. Select the drive and date that you want to restore from.
4. Right-click on a folder name and select Export.
5. In case there are no other dates in the list, choose an alternative method.

If you are using Dropbox:

1. Login to the Dropbox website and go to the folder that contains encrypted files.
2. Right-click on the encrypted file and select Previous Versions.
3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like Tianrui Ransomware, in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.

Download ZoneAlarm Anti-Ransomware

2. Back up your files

As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. Tianrui Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.

Download MailWasher Pro