Complete ChinaYunLong Virus Removal Guide. How to Restore .yl Files

We have identified a new computer malware called ChinaYunLong virus. It is a dangerous ransomware – a threat that encrypts system and personal data with a strong cipher and then extorts the victims for a ransom fee by displaying text and images that attempt to force and/or scare them.
Manual Removal Guide
Recover ChinaYunLong Virus Files
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How the ChinaYunLong Virus Infects Computers

ChinaYunLong is a typical ransomware virus that infects computer hosts via the most popular tactics. There are two main types of attacks that are associated with these type of threats:

  1. 1. Social Engineering Attacks – The hackers attempt to lure the users into infecting themselves by employing different tactics. They can include spam email messages, counterfeit software installers, infected documents and other means. All of them depend on the inability of the targets to distinguish between a legitimate and a counterfeit payload. Usually these attacks are much more successful as they are far greater in volume than the direct hacker intrusion attempts.
  2. 2. Hacker Attacks – Direct hacker intrusion attempts are usually done by using redirection means. The criminals employ dangerous web scripts, browser hijackers, ad networks and vulnerability testing to attempt to infect the computers with the virus.

The ChinaYunLong virus has been found in several files:

  • China Yun Long.exe – executable file
  • Resurrection.exe – executable file
  • Second Resurrection.exe – executable file
  • yl.ini – Possible configuration file
  • Associated BMP and ICO graphic extension files

Related: Mikoyan Ransomware Removal Guide, .OXR File Virus Removal and Recovery Guide

The Dangers of ChinaYunLong Virus Infections

The ChinaYunLong virus is a typical ransomware strain that follows the usual tactics associated with this type of malware:

  1. Upon infection with the ChinaYunLong the built-in ransomware engine is immediately started.
  2. Depending on the configuration it may attain a persistent state of execution. This is when the virus actively monitors the user and system actions and prevents any manual removal attempts.
  3. The built-in target file list is usually predefined by the hackers. It can be changed based on the attack campaign.
  4. All miscellaneous actions are usually followed afterwards.

The captured samples associated with the ChinaYunLong virus have been found to infect the following files:

.7z, .asp, .avi, .bak, .doc, .docx, .dps, .e, .et, .excel, .h, .htm, .html, .jpg, .mp3, .mp4, .pdf, .php, .png, .ppt, .pptx, .rar, .txt,
.word, .wps, .xls, .xlsx, .zip

All affected data is renamed using the .yl extension. Several icons are placed on the victim’s desktop that are associated with the threat. When the users click on the China Yun Long application icon. An unintelligible message is displayed which probably means that the ransomware note is not yet ready.

ChinaYunLong Virus image

The hackers prefer to use the Bitcoin digital currency. Transactions done through it cannot be traced down to a single individual. The payments are cleared through a non-supervised network that is verified by the community.

Some versions of the ChinaYunLong ransomware include a lockscreen module. It effectively blocks ordinary computer interaction until the virus is completely removed.

We recommend all victims to follow our instructions and remove the threat using the professional-grade malware solution. The data recovery software can easily restore the affected files.

Remove ChinaYunLong Virus and Restore Data

WARNING! Manual removal of ChinaYunLong Virus requires being familiar with system files and registries. Removing important data accidentally can lead to permanent system damage. If you don’t feel comfortable with manual instructions, download a powerful anti-malware tool that will scan your system for malware and clean it safely for you.

DOWNLOAD Anti-Malware Tool

SpyHunter anti-malware tool will diagnose all current threats on the computer. By purchasing the full version, you will be able to remove all malware threats instantly. Additional information about SpyHunter / Help to uninstall SpyHunter

ChinaYunLong Virus – Manual Removal Steps

Start the PC in Safe Mode with Network

This will isolate all files and objects created by the ransomware so they will be removed efficiently. The steps bellow are applicable to all Windows versions.

1. Hit the WIN Key + R

2. A Run window will appear. In it, write msconfig and then press Enter

3. A Configuration box shall appear. In it Choose the tab named Boot

4. Mark Safe Boot option and then go to Network under it to tick it too

5. Apply -> OK

Show Hidden Files

Some ransomware threats are designed to hide their malicious files in the Windows so all files stored on the system should be visible.

1. Open My Computer/This PC

2. Windows 7

    – Click on Organize button
    – Select Folder and search options
    – Select the View tab
    – Go under Hidden files and folders and mark Show hidden files and folders option

3. Windows 8/ 10

    – Open View tab
    – Mark Hidden items option

how to make hidden files visible in Windows 8 10 bestsecuritysearch instructions

4. Click Apply and then OK button

Enter Windows Task Manager and Stop Malicious Processes

1. Hit the following key combination: CTRL+SHIFT+ESC

2. Get over to Processes

3. When you find suspicious process right click on it and select Open File Location

4. Go back to Task Manager and end the malicious process. Right click on it again and choose End Process

5. Next, you should go folder where the malicious file is located and delete it

Repair Windows Registry

1. Again type simultaneously the WIN Key + R key combination

2. In the box, write regedit and hit Enter

3. Type the CTRL+ F and then write the malicious name in the search type field to locate the malicious executable

4. In case you have discovered registry keys and values related to the name, you should delete them, but be careful not to delete legitimate keys

Click for more information about Windows Registry and further repair help

ChinaYunLong Virus Files

WARNING! All files and objects associated with ChinaYunLong Virus should be removed from the infected PC before any data recovery attempts. Otherwise the virus may encrypt restored files. Furthermore, a backup of all encrypted files stored on external media is highly recommendable.

DOWNLOAD ChinaYunLong Virus Removal Tool

SpyHunter anti-malware tool will diagnose all current threats on the computer. By purchasing the full version, you will be able to remove all malware threats instantly. Additional information about SpyHunter / Help to uninstall SpyHunter

1. Use present backups

2. Use professional data recovery software

Stellar Phoenix Data Recovery – a specialist tool that can restore partitions, data, documents, photos, and 300 more file types lost during various types of incidents and corruption.

3. Using System Restore Point

    – Hit WIN Key
    – Select “Open System Restore” and follow the steps


4. Restore your personal files using File History

    – Hit WIN Key
    – Type restore your files in the search box
    – Select Restore your files with File History
    – Choose a folder or type the name of the file in the search bar
    – Hit the “Restore” button

Preventive Security Measures

  • Enable and properly configure your Firewall.
  • Install and maintain reliable anti-malware software.
  • Secure your web browser.
  • Check regularly for available software updates and apply them.
  • Disable macros in Office documents.
  • Use strong passwords.
  • Don’t open attachments or click on links unless you’re certain they’re safe.
  • Backup regularly your data.
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    Author : Martin Beltov

    Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.

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