How to remove Jycx Ransomware and decrypt .jycx files

What is Jycx Ransomware

Jycx Ransomware (in other classification STOP Ransomware or Djvu Ransomware) is harmful malware, that blocks access to user’s files by encrypting them and requires a buyout. It was released in the last days of March 2023 and hit tens of thousands computers. The virus uses an unbreakable encryption algorithm (AES-256 with RSA-1024 key) and demands a ransom to be paid in Bitcoins. However, due to some programming mistakes, there are cases when your files can be decrypted. A version of STOP Ransomware, that we are considering today, adds .jycx extensions to encrypted files, and therefore got the name Jycx Ransomware. After the encryption, it presents file _readme.txt to the victim. This text file contains information about the infection, contact details, and false statements about decryption guarantees. The following e-mails are used by malefactors for communication: support@freshmail.top and datarestorehelp@airmail.cc. Below is an example of a ransom note:

The infection with Jycx Ransomware is very unfortunate, but you should keep calm. Do not succumb to provocations, and do not trust the hackers. In most cases, they will never return your files after paying the ransom. Think of possible backups and duplicates of the affected data, that may be stored elsewhere. There is a great tool called STOP Djvu Decryptor, developed by Emsisoft, that, probably, will help you to decrypt sensitive information. However, it works mostly for cases, when the computer was not connected to the Internet while the virus was active. There are also many alternative ways to recover your photos, documents, videos, etc. Below, in the article, we give instructions for using file-recovery software and some default Windows system functions, that may be of some help. Use instructions in this guide to remove Jycx Ransomware and decrypt .jycx files in Windows 11, 10, 8, 7.

How Jycx Ransomware infected your computer

Jycx Ransomware, as a part of STOP/Djvu Ransomware, is a type of malware that encrypts files on a victim’s computer and demands payment in exchange for the decryption key. There are several methods that Jycx Ransomware can use to infect computers, including:

• Spam emails: Jycx Ransomware can be distributed through spam emails that contain infected attachments or links to malicious websites.
• Software vulnerabilities: The malware can exploit vulnerabilities in software programs and operating systems to gain access to a victim’s computer.
• Fake software updates: The ransomware can be disguised as a software update or security patch, tricking users into downloading and installing the malware.
• Pirated software: Jycx Ransomware can be bundled with pirated software or key generators, which are often downloaded from untrustworthy sources.
• Malicious websites: The malware can be distributed through malicious websites that contain infected files or links to malware downloads.
• Remote Desktop Protocol (RDP) attacks: Jycx Ransomware can be spread through brute force attacks on RDP connections, which are used to remotely access a victim’s computer.

1. Download Jycx Ransomware Removal Tool
2. Get decryption tool for .jycx 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. Restore media files with Media Repair
7. How to protect from threats like Jycx Ransomware

Virus modifies “hosts” file to block Windows updates, downloading antivirus programs, and visiting sites related to security news or offering security solutions. Jycx Ransomware comes along with AZORult trojan, which was initially created to steal logins and passwords. The process of infection also looks like installing Windows updates, the malware shows a fake window, that mimics the update process.

It uses rdpclip.exe to replace a legal Windows file and to launch an attack on a computer network. After encrypting the files, the encrypter is deleted using the delself.bat command file. Jycx Ransomware virus is propagated via spam attack with malicious e-mail attachments and using manual PC hacking. Can be distributed by hacking through an unprotected RDP configuration, fraudulent downloads, exploits, web injections, fake updates, repackaged, and infected installers. The virus assigns a certain ID to the victims, which is used to name those files and supposedly to send a decryption key. Great tools to protect against Jycx Ransomware are: Emsisoft Anti-Malware and Malwarebytes Anti-Malware.

How to remove Jycx Ransomware manually

It is not recommended to remove Jycx Ransomware manually, for safer solution use Removal Tools instead.

Jycx Ransomware files:

_readme.txt
rdpclip.exe
delself.bat
{randomname}.exe

Jycx Ransomware registry keys:

no information

How to decrypt and restore .jycx files

Use automated decryptors

Download STOP Djvu Decryptor from EmsiSoft (.jycx variations)

IMPORTANT: Read this detailed guide on using STOP Djvu Decryptor to avoid file corruption and time wasting.

STOP Djvu Decryptor is able to decrypt .jycx files, encrypted by Jycx Ransomware. This tool was developed by EmsiSoft. It works in automatic mode, but in most cases works only for files encrypted with offline keys. Download it here:

Download STOP Djvu Decryptor

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 .jycx files by uploading samples to Dr. Web Ransomware Decryption Service. Analysis of 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 Jycx Ransomware and removed it from your computer, you can try decrypting 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 .jycx files

1. Download Stellar Data Recovery Professional.
2. Click Recover Data button.
3. Select type of files you want to restore and click Next button.
4. Choose 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 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 is no items in the list choose alternative method.

Using Shadow Explorer:

1. Download Shadow Explorer program.
2. Run it and you will see 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 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.

Use Media Repair to decrypt media files encrypted with .jycx

1. Download Media Repair tool.
2. Right-click on the downloaded archive, and select Extract to Media_Repair\.
3. Then double-click on the extracted .exe file to launch the utility.
4. At first, you have to choose which file type you want to decrypt. You can do it from the drop-down menu in the utility.
5. Next, browser the folder with encrypted or reference files. Choose any of them and click on the Test icon located in the top right corner.
6. Media Repair will display a pop-up message with information on whether it can repair the selected file or not.
7. After checking if it is possible or not, select your reference file and click on the icon right under the Test button we used in step #5.
8. If the file pair is properly matched, you can move on and hit the Play button to start repairing. You can also stop the process anytime by clicking on the Stop button.

How to protect computer from viruses, like Jycx 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. Jycx 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.

Download iDrive

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