REVRAC (Makop) Ransomware

REVRAC is a ransomware variant from the Makop family that encrypts victims’ files and demands payment in Bitcoin. It appends the .REVRAC extension to affected files and leaves behind a ransom note named +README-WARNING+.txt in each impacted directory.

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Threat Overview

Threat type: Ransomware / Crypto-virus
Encrypted file extension: .REVRAC
Ransom note file name: +README-WARNING+.txt
Contact email addresses: onlybuy@cyberfear.com, techsupport@cyberfear.com
Detection names:

• Avast: Win32:Fasec [Trj]
• Combo Cleaner: Gen:Variant.Ransom.Makop.50
• ESET-NOD32: A Variant Of Win32/Filecoder.Phobos.E
• Kaspersky: HEUR:Trojan-Ransom.Win32.Generic
• Microsoft: Ransom:Win32/Phobos.PB!MTB
  Symptoms of infection:
• All personal files become unreadable with the .REVRAC extension
• Ransom note appears in each folder demanding payment
  Damage and distribution methods:
• Encrypts nearly all file types and renames them with victim ID and email
• Distributed through phishing emails, pirated software, malicious websites, fake updates, and cracked tools
  Danger level: High – can result in irreversible data loss and network-wide infection
  Removal tool: SpyHunter

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Summary

Attribute	Details
Threat type	Ransomware (crypto-virus)
Encrypted file extension	.REVRAC
Ransom note name	+README-WARNING+.txt
Contact emails	onlybuy@cyberfear.com, techsupport@cyberfear.com
Detection names	Multiple antivirus engines
Symptoms	Encrypted files, ransom note
Damage and distribution	File encryption, malware bundling, network infection
Danger level	High
Removal tool	SpyHunter

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Evaluation of the REVRAC Ransomware Threat

How I Got Infected

Most victims are infected by opening malicious email attachments, downloading pirated content, or clicking on deceptive pop-up ads and fake update prompts. These methods initiate the ransomware payload, which silently runs in the background, encrypting the system’s files before alerting the user.

What Does It Do?

REVRAC scans the infected machine for valuable file types, encrypts them using military-grade encryption, and appends .REVRAC to each one. It also drops the ransom note +README-WARNING+.txt with payment instructions. The file names are modified to include a unique victim ID and attacker’s email address. Some variants are known to disable security features and attempt lateral movement within the network.

Should You Be Worried?

Yes. The encryption is strong and currently there is no publicly available decryption tool. Even if you pay the ransom, there is no guarantee that the attackers will provide a working decryption key. Additionally, REVRAC may be accompanied by other malware such as trojans or spyware, which could further compromise your data and privacy.

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Ransom Note Text

The ransom note typically reads:

YOUR FILES ARE ENCRYPTED
Your files, documents, photos, databases and other important files are encrypted.
You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files.
To be sure we have the decryptor and it works you can send an email: TechSupport@cyberfear.com and decrypt one file for free.
Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1 Mb (non archived), and files should not contain valuable information. (databases, backups, large excel sheets, sql. etc.)
Do you really want to restore your files? Write to email: OnlyBuy@cyberfear.com
Your personal ID is indicated in the names of the files and in the end of this message, before writing a message by email – indicate the name of the ID indicated in the files IN THE SUBJECT OF THE EMAIL
Attention!

• Do not rename encrypted files.
• Do not try to decrypt your data using third party software, it may cause permanent data loss.
• Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
  YOUR ID: –

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

REVRAC ransomware is a highly dangerous threat capable of locking all important files on a system and demanding ransom in exchange for decryption. Belonging to the Makop family, it uses strong encryption, deceptive distribution tactics, and threatening messages to coerce victims. The safest approach is to remove the malware using a reliable security tool like SpyHunter and recover files from a secure backup. Avoid contact with the attackers and never pay the ransom, as this can worsen your situation.