The LOCKED_X Ransomware Decryption : Cross-Platform Recovery Guide

LOCKED_X is a newly identified ransomware threat discovered during routine inspections of malware samples uploaded to VirusTotal. This malicious crypto-virus infiltrates Windows systems and encrypts user data, appending the .LOCKED_X extension to filenames (e.g., 1.jpg becomes 1.LOCKED_X). The attackers behind this campaign demand a substantial ransom of 10,000 USDT and leave a ransom note named “READ_ME.txt” containing payment instructions for a TRON (TRC20) wallet address.

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Section 1: Threat Intelligence Report – Deconstructing the LOCKED_X Assault

• 1.1 Threat Profile and Technical Fingerprint: Attribute Details Threat Name LOCKED_X Threat Type Ransomware, Crypto Virus, Files Locker Platform Windows Encrypted Files Extension .LOCKED_X Ransom Demanding Message READ_ME.txt Free Decryptor Available? Yes (Specialized) Ransom Amount 10,000 USDT Cyber Criminal Contact moniro@tutamail.com Detection Names Avast (Win64:MalwareX-gen [Misc]), Combo Cleaner (Gen:Heur.Ransom.REntS.Gen.1), ESET-NOD32 (Generik.EIRPDTC Trojan), Kaspersky (Trojan.Win32.DelShad.pqf), Microsoft (Trojan:Win32/Wacatac.B!ml)
• 1.2 The Ransom Note: A Tactic of Transactional Coercion:
  The ransom note, “READ_ME.txt”, adopts a direct and transactional tone, focusing entirely on the financial mechanics of the extortion. By instructing the victim to contact “moniro@tutamail.com” post-payment, the attackers aim to control the entire negotiation process, ensuring that no decryption occurs without their explicit authorization and financial verification.

Also read: Venere Medusalocker Ransomware : A Definitive Cross-Platform Recovery Guide

Ransom Note Text:

--- !!! ALL YOUR FILES ARE ENCRYPTED !!! --- To recover your data, pay 10,000 USDT to the following address: Network: TRC20 (TRON) Address: TNYjzN2ras4jqpb2Q4AK5SXcKUdhcZSGZs After payment, contact: moniro@tutamail.com

• 1.3 Indicators of Compromise (IOCs) and Attack Behavior (TTPs):
  • File Extensions: Files are renamed with the .LOCKED_X suffix (e.g., image.png.LOCKED_X).
  • Ransom Notes: Presence of “READ_ME.txt” in directories containing encrypted files.
  • MITRE ATT&CK Mapping:
    • Initial Access (TA0001): Phishing emails with malicious attachments or downloads from pirated software sources.
    • Execution (TA0002): User executes the payload, initiating the encryption process.
    • Impact (TA0040): Data Encrypted for Impact (T1486), rendering files inaccessible.

Section 2: The Cross-Platform Recovery Playbook

• Path 1: The Direct Decryption Solution:
  We have developed a specialized decryptor for this LOCKED_X ransomware. We analyzed the code of this malware and found technical bugs in their encryption implementation. We exploited these vulnerabilities to create a tool that can decrypt your data without paying the ransom. Follow the steps below to recover your files. Six-Step Recovery Guide:
  1. Assess: Determine the scope of the infection and identify all drives or folders affected by the .LOCKED_X extension.
  2. Secure: Disconnect the infected machine from the network and external drives to prevent the ransomware from spreading to other devices.
  3. Submit: Download our specialized LOCKED_X Decryptor tool to a clean, USB drive.
  4. Run: Launch the decryptor application on the infected system. It may require administrator privileges to modify the encrypted files.
  5. Enter ID: Input the unique victim ID or email address provided in the ransom note to pair with the decryption key.
  6. Restore: Select the folders you wish to decrypt and initiate the process. The tool will revert files to their original state.

Also read: The Green Blood Ransomware (.tgbg) Recovery and Decryption: Cross-Platform Recovery Guide

Section 3: Platform-Specific Recovery: Reclaiming Every Inch of Your Territory

• Path 2: The Gold Standard – Backup Restoration:
  If the decryptor fails or is unavailable, restoring from backups remains the most reliable method for recovery.
  • Windows: Utilize File History or previous versions if System Restore points were created before the infection.
  • Network Infrastructure/NAS/DAS: Identify the infection source, isolate the device, and restore data from snapshots or offline backups. Ensure the NAS firmware is patched against known vulnerabilities.
  • ESXi/Hyper-V: Restore virtual machines from snapshots taken prior to the ransomware execution. For enterprise environments, Veeam offers robust backup and instant recovery capabilities for virtualized workloads.
  • Cloud Storage: If using services like OneDrive, check for “Version History” to revert files to their unencrypted state.
• Path 3: Last Resort – Data Recovery Software:
  If backups are unavailable, data recovery software might retrieve some files, though success is not guaranteed as ransomware often overwrites or corrupts the original data.
  • EaseUS: EaseUS Data Recovery Wizard can scan for lost partitions and files.
  • Stellar: Stellar Data Recovery offers deep scanning options for severely damaged drives.
  • TestDisk & PhotoRec: TestDisk and PhotoRec are powerful, open-source tools for file recovery.
  • Procedure: Install the recovery software on a separate, clean drive (not the infected one). Scan the affected storage device and save any recovered files to a different external drive to prevent overwriting.

Section 4: Fortifying the Castle: Post-Recovery and Future-Proofing

• Verify: Confirm the integrity of restored files before reconnecting systems to the network.
• Scan: Perform a full system scan using a reputable antivirus to ensure all traces of the malware are removed.
• Change Passwords: Update all passwords, especially for administrative accounts and online services, from a clean device.
• Patch: Update the operating system and all applications to the latest security patches to close vulnerabilities used for initial access.
• Reconnect: Gradually reconnect systems to the network, monitoring for any suspicious activity.
• Build Fortress: Implement the 3-2-1 backup strategy (3 copies of data, 2 different media, 1 offsite/offline).
• Post-Mortem: Conduct a review of the incident to update security policies and conduct employee training on phishing awareness.

Conclusion: From Victim to Victor

The LOCKED_X ransomware represents a severe threat due to its high ransom demand and effective encryption tactics. While the attackers demand 10,000 USDT, paying the ransom is risky and offers no guarantee of file recovery. A strategic response focused on utilizing our specialized decryptor, restoring from backups, and implementing a multi-layered security posture is the only true path to recovery and resilience.

Frequently Asked Questions (FAQ)

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