CRFILE Ransomware (.CRFILE2 Files)

CRFILE ransomware is a newly identified variant from the MedusaLocker family. It encrypts user files and appends the “.CRFILE2” extension, rendering them inaccessible. Victims are then presented with a ransom note titled “READ_NOTE.html,” demanding payment for file decryption. This malware poses a significant threat to both individuals and organizations, as it not only encrypts data but also threatens to leak sensitive information if the ransom is not paid.

---

CRFILE Ransomware Overview

CRFILE operates as a crypto-ransomware, utilizing a combination of RSA and AES encryption algorithms to lock files. Once the encryption process is complete, it appends the “.CRFILE2” extension to affected files. The ransomware then drops a ransom note named “READ_NOTE.html” in each directory containing encrypted files. This note provides instructions on how to contact the attackers and make the ransom payment.

---

CRFILE Ransomware Summary

Attribute	Details
Threat Type	Ransomware
Encrypted File Extension	.CRFILE2
Ransom Note File Name	READ_NOTE.html
Associated Email Addresses	pomocit07@kanzensei.top, pomocit07@surakshaguardian.com
Detection Names	Win64:MalwareX-gen [Ransom], Gen:Variant.Tedy.700016, A Variant Of Win64/Filecoder.MedusaLocker.A, HEUR:Trojan-Ransom.Win32.Generic, Ransom:Win64/MedusaLocker.MZT!MTB
Symptoms of Infection	Inaccessible files with .CRFILE2 extension, presence of “READ_NOTE.html” ransom note, ransom demand for file decryption
Damage	Encryption of personal and sensitive files, potential data leakage if ransom is unpaid
Distribution Methods	Infected email attachments, pirated software, malicious advertisements, compromised websites
Danger Level	High
Removal Tool	SpyHunter

---

Understanding the CRFILE Ransomware Threat

How Did I Get Infected?

CRFILE ransomware typically infiltrates systems through:

• Phishing Emails: Malicious attachments or links in emails that, when opened, execute the ransomware.
• Pirated Software: Downloading and installing cracked or unauthorized software can introduce malware.
• Malicious Advertisements: Clicking on deceptive ads can lead to automatic downloads of ransomware.
• Compromised Websites: Visiting or interacting with infected websites can trigger ransomware downloads.

What Does CRFILE Do?

Once executed, CRFILE ransomware:

1. Encrypts Files: Utilizes RSA and AES algorithms to encrypt files, appending the .CRFILE2 extension.
2. Drops Ransom Note: Creates a READ_NOTE.html file in affected directories, detailing ransom payment instructions.
3. Threatens Data Exposure: Claims to have exfiltrated sensitive data, threatening to release it if the ransom isn’t paid.
4. Sets Payment Deadline: Warns that the ransom amount will increase if not paid within 72 hours.

Should You Be Worried?

Yes. CRFILE ransomware not only encrypts your valuable data but also poses a risk of data leakage. Paying the ransom does not guarantee file recovery and may encourage further criminal activity. It’s crucial to remove the ransomware promptly and explore alternative data recovery options.

---

CRFILE Ransom Note Text

The “READ_NOTE.html” ransom note typically contains the following message:

pgsqlCopyEditAll your files have been encrypted using RSA and AES encryption algorithms.
Attempting to restore your files with third-party software will result in permanent data loss.
We have also collected sensitive, personal information stored on your system.
This data is stored on a private server and will be destroyed after payment is made.
If you do not pay, we may publish your data or sell it to third parties.
Contact us at pomocit07@kanzensei.top or pomocit07@surakshaguardian.com for further instructions.
The decryption price will increase if you do not make contact within 72 hours.

---

Manual Ransomware Removal Guide

Warning: Manual removal is complex and risky. If not done correctly, it can lead to data loss or incomplete removal of ransomware. Only follow this method if you are an advanced user. If unsure, proceed with Method 2 (SpyHunter Removal Guide).

Step 1: Disconnect from the Internet

1. Unplug your Ethernet cable or disconnect Wi-Fi immediately to prevent further communication with the ransomware’s command and control (C2) servers.

Step 2: Boot into Safe Mode

For Windows Users:

1. For Windows 10, 11:
   • Press Windows + R, type msconfig, and hit Enter.
   • Go to the Boot tab.
   • Check Safe boot and select Network.
   • Click Apply and OK, then restart your PC.
2. For Windows 7, 8:
   • Restart your PC and press F8 repeatedly before Windows loads.
   • Select Safe Mode with Networking and press Enter.

For Mac Users:

1. Restart your Mac and immediately press and hold the Shift key.
2. Release the key once you see the Apple logo.
3. Your Mac will start in Safe Mode.

Step 3: Locate and Terminate Malicious Processes

For Windows Users:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Look for suspicious processes (e.g., unknown names, high CPU usage, or random letters).
3. Right-click on the process and select End Task.

For Mac Users:

1. Open Activity Monitor (Finder > Applications > Utilities > Activity Monitor).
2. Look for unusual processes.
3. Select the process and click Force Quit.

Step 4: Delete Malicious Files

For Windows Users:

1. Press Windows + R, type %temp%, and hit Enter.
2. Delete all files in the Temp folder.
3. Navigate to:
   • C:\Users\[Your Username]\AppData\Roaming
   • C:\Users\[Your Username]\AppData\Local
   • C:\Windows\System32
4. Look for suspicious files related to the ransomware (random file names, recently modified) and delete them.

For Mac Users:

1. Open Finder and go to Go > Go to Folder.
2. Type ~/Library/Application Support and delete suspicious folders.
3. Navigate to ~/Library/LaunchAgents and remove unknown .plist files.

Step 5: Remove Ransomware from Registry or System Settings

For Windows Users:

Warning: Incorrect changes in the Registry Editor can damage your system. Proceed with caution.

1. Press Windows + R, type regedit, and hit Enter.
2. Navigate to:
   • HKEY_CURRENT_USER\Software
   • HKEY_LOCAL_MACHINE\Software
3. Look for unfamiliar folders with random characters or ransomware-related names.
4. Right-click and select Delete.

For Mac Users:

1. Go to System Preferences > Users & Groups.
2. Click on Login Items and remove any suspicious startup items.
3. Navigate to ~/Library/Preferences and remove malicious .plist files.

Step 6: Restore System Using System Restore (Windows) or Time Machine (Mac)

For Windows Users:

1. Press Windows + R, type rstrui, and hit Enter.
2. Click Next, choose a restore point before the infection, and follow the prompts to restore your system.

For Mac Users:

1. Restart your Mac and hold Command + R to enter macOS Utilities.
2. Select Restore from Time Machine Backup.
3. Choose a backup prior to the ransomware infection and restore your system.

Step 7: Use a Decryption Tool (If Available)

• Visit No More Ransom (www.nomoreransom.org) and check if a decryption tool is available for your ransomware variant.

Step 8: Recover Files Using Backup

• If you have backups on an external drive or cloud storage, restore your files.

---

Automatic Ransomware Removal Using SpyHunter

If manual removal seems too risky or complicated, using a reliable anti-malware tool like SpyHunter is the best alternative.

Step 1: Download SpyHunter

Download SpyHunter from the official link: Download SpyHunter

Or follow the official installation instructions here:
SpyHunter Download Instructions

Step 2: Install SpyHunter

1. Open the downloaded file (SpyHunter-Installer.exe).
2. Follow the on-screen prompts to install the program.
3. Once installed, launch SpyHunter.

Step 3: Perform a Full System Scan

1. Click on Start Scan Now.
2. SpyHunter will scan for ransomware and other malware.
3. Wait for the scan to complete.

Step 4: Remove Detected Threats

1. After the scan, SpyHunter will list all detected threats.
2. Click Fix Threats to remove the ransomware.

Step 5: Use SpyHunter’s Malware HelpDesk (If Needed)

If you are dealing with a stubborn ransomware variant, SpyHunter’s Malware HelpDesk provides custom fixes to remove advanced threats.

Step 6: Restore Your Files

If your files are encrypted:

• Try No More Ransom (www.nomoreransom.org) for decryption tools.
• Restore from cloud storage or external backups.

---

Preventing Future Ransomware Attacks

• Keep backups on an external hard drive or cloud storage.
• Use SpyHunter to detect threats before they infect your system.
• Enable Windows Defender or a trusted antivirus program.
• Avoid suspicious emails, attachments, and links.
• Update Windows, macOS & software regularly.

Conclusion

CRFILE ransomware is a severe threat that encrypts files and threatens data exposure. Immediate action is required to mitigate damage. Utilize reputable security tools like SpyHunter to remove the ransomware. Avoid paying the ransom, as it does not guarantee data recovery and supports criminal activities. Regular backups and cautious online behavior are essential preventive measures.