Nezha Ransomware

Nezha ransomware is a file-encrypting threat that targets Windows systems and locks user data using strong AES or RSA encryption. It appends the .nezha extension to encrypted files and drops a ransom note instructing victims to contact the attackers for decryption instructions. Like many modern ransomware strains, Nezha is part of a growing trend of targeted attacks against individuals and small businesses.

Once inside your system, it scans for valuable files—including documents, images, databases, and backups—and makes them inaccessible without a decryption key only the hackers possess.

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🔎 Nezha Ransomware Summary

Threat Type	Ransomware
Encrypted Extension	.nezha
Ransom Note Filename	Read_Me.txt
Email Contact	nezha@qq.com
Detection Names	Trojan-Ransom.Win32.Crypmodng, Ransom:Win32/StopCrypt, Win32/Filecoder.Nezha
Symptoms	Files renamed with .nezha, ransom note on desktop, inaccessible data
Damage & Distribution	File encryption, data loss, spread via malicious email attachments, cracked software, fake updates
Danger Level	🔥 High

👉 SpyHunter Removal Tool →

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How Did I Get Infected With Nezha Ransomware?

Nezha ransomware is often delivered through phishing emails containing malicious attachments—usually disguised as invoices, resumes, or shipping notices. It can also spread through torrent downloads, fake software cracks, or malicious ads on compromised websites.

Once you open the infected file, the ransomware runs silently in the background, encrypts your files, and drops its ransom note in multiple folders. Some versions may even delete Shadow Volume Copies to block recovery.

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What Nezha Ransomware Does to Your Files

Nezha systematically scans your computer for data-rich file types like:

• .doc/.docx
• .jpg/.png
• .xls/.xlsx
• .pdf
• .sql/.db

Then it encrypts them and appends the .nezha extension, rendering them unreadable. The encryption algorithm is robust and currently uncrackable without the decryption key, making backups or prior restore points your best shot at recovery (if they weren’t deleted).

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Should You Be Worried About Nezha Ransomware?

Absolutely. Nezha ransomware isn’t just an annoyance—it’s capable of permanently destroying personal and business data. The threat actors behind it often:

• Target users with no reliable backups
• Use emotional manipulation in ransom notes
• Threaten to leak stolen data (in some variants)

While paying the ransom is technically an option, it’s highly discouraged. There’s no guarantee you’ll get your files back, and you’re funding future attacks.

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Ransom Note Dropped by Nezha Ransomware

Here’s what the Read_Me.txt ransom note usually says:

Your files have been encrypted by NEZHA.
To recover your data, contact us at nezha@qq.com
Send us one file and we will decrypt it for free.
Do not rename the files or use third-party recovery tools – this may damage your data.

The attackers may offer to decrypt one file for free to prove they can unlock your data. But again, there’s zero guaranteeyou’ll get full restoration even if you pay.

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.

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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.

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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.

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Conclusion

Nezha ransomware is a dangerous, file-locking malware that can leave your data permanently inaccessible. If your system is infected:

1. Disconnect from the internet immediately to stop further encryption.
2. Use SpyHunter or a reputable anti-malware tool to remove the infection.
3. Do not pay the ransom. Instead, check for backups or use professional recovery tools.

🛡️ Prevention is key—avoid downloading suspicious attachments, update your security software, and back up your files regularly.