The Decrypt (Makop) Ransomware Decryption: Cross-Platform Recovery Guide

In the deceptive world of cybercrime, few threats are as cynically named as the Decrypt ransomware. Discovered by researchers analyzing new submissions, this malicious program is the antithesis of its name; it is a ruthless and efficient variant of the notorious Makop family, designed to encrypt your critical data and hold it for ransom. The appearance of the .decrypt extension, appended with a victim ID and contact email, is a clear sign of a severe business continuity crisis.

This definitive guide provides a comprehensive, multi-environment playbook for responding to a Decrypt (Makop) infection. We will deliver a detailed analysis of the threat, outline a step-by-step recovery strategy for every system in your infrastructure—from Windows desktops to Linux servers and complex virtualized environments—and provide the critical steps needed to restore operations and fortify your defenses against future attacks.

Latest: A Complete Recovery Guide for the Karma (MedusaLocker) Ransomware

Section 1: Threat Intelligence Report – Deconstructing the Decrypt (Makop) Assault

Before formulating a response, a deep, semantic understanding of the threat is crucial. The Decrypt (Makop) operation is a study in technical efficiency and psychological manipulation.

1.1 Threat Profile and Technical Fingerprint

Also read: A Technical Analysis and Recovery Guide for the Backups (Beast) Ransomware Variant

1.2 The Ransom Note: A Tactic of Coercion and False Professionalism

The Decrypt (Makop) ransom note employs a “business-like” tone to disarm the victim and create a false sense of security.

::: Greetings :::
Little FAQ:
.1. Q: Whats Happen? A: Your files have been encrypted.
...
.3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits.
...
.6. Q: If I don t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data...

Semantic Deconstruction of Tactics:

• Depersonalized “Business” Framing: The attackers frame the crime as a simple business transaction (“Its just a business”). This is a calculated move to lower the victim’s emotional guard and encourage a pragmatic, rather than emotional, decision to pay.
• False Guarantees: The offer to decrypt two files for free is a classic confidence trick. It’s designed to prove their “service” works, luring the victim into trusting them with a much larger payment.
• Threat of Irreversible Damage: The warning not to modify files or use third-party tools is a self-serving lie designed to prevent victims from seeking legitimate help and to preserve the integrity of their own encryption scheme.
• Minimization of Malice: The statement “we did everything possible so that this could not happen” is a blatant falsehood designed to portray themselves as careful professionals, not the destructive criminals they are.

1.3 Indicators of Compromise (IOCs) and Attack Behavior (TTPs)

Recognizing the attack is the first critical step toward containment.

Indicators of Compromise (IOCs):

• File Extension Anomaly: The systematic renaming of files with the .decrypt extension, including a victim ID and email (e.g., document.pdf.[2AF20FA3].[systemofadown@cyberfear.com].decrypt).
• Ransom Note Artifact: The presence of a +README-WARNING+.txt file and a changed desktop wallpaper in directories with encrypted files.
• Cross-Platform Impact: Evidence of encryption across Windows, network-attached storage, and virtualized environments, indicating successful lateral movement.

MITRE ATT&CK TTPs:

• Initial Access (TA0001): Decrypt (Makop) gains entry through common vectors like phishing emails with malicious attachments, exploiting unpatched software vulnerabilities, and using compromised credentials.
• Execution (TA0002): Once the user executes the malicious file, the ransomware payload is activated, beginning its encryption routine across the system’s drives.
• Lateral Movement (TA0008): Using tools like PsExec or WMI to push the ransomware executable to other machines on the network.
• Impact (TA0040): The primary impact is widespread data encryption and the disruption of business operations.

Section 2: The Cross-Platform Recovery Playbook

This is the core of your incident response. We will explore every viable path to data restoration, tailored to each specific environment.

Path 1: The Direct Decryption Solution

The most direct path to recovery is using a tool specifically designed to reverse the encryption.

Our Specialized Decrypt (Makop) Decryptor

Our team has developed a specialized decryptor to counter the Decrypt (Makop) threat across its known platforms.

Step-by-Step Guide:

• Step 1: Assess the Infection: Confirm the presence of the .decrypt extension and the +README-WARNING+.txt file across all affected systems. Note the unique victim ID and contact details from the note.
• Step 2: Secure the Environment: CRITICAL: Disconnect all affected systems from the network immediately to halt any further spread. Isolate your backup infrastructure.
• Step 3: Submit Files for Analysis: Send a few encrypted samples (under 5MB) from each affected platform (e.g., a Windows file, a file from a network share) and the ransom note file to our team.
• Step 4: Run the Decrypt (Makop) Decryptor: Launch the tool with administrative privileges on a clean, isolated machine. The decryptor connects securely to our servers to analyze encryption markers and file headers.
• Step 5: Enter the System ID: The unique ID from the filename is required to generate a customized decryption profile.
• Step 6: Automated File Restoration: Once initiated, the decryptor verifies file integrity and restores data automatically, preserving original filenames and directory structures.

Also read: The XXWXO Ransomware Crisis: A Definitive Cross-Platform Recovery Guide

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

Decrypt (Makop) can hit everywhere, so we need to be ready to fight on every front.

Path 2: The Gold Standard – Backup Restoration

If the decryptor isn’t an option, your backups are your fortress. This is the most reliable way to win.

Enterprise-Grade Backups: Veeam

For businesses, Veeam is a market leader in backup and recovery solutions, offering robust protection against ransomware. Veeam can create immutable backups that cannot be altered by the ransomware and offers specialized recovery processes like Cleanroom Recovery to prevent reinfection. Learn more at the official Veeam website.

Platform-Specific Backup and Recovery: Fighting on Every Front

• Windows Systems (Desktops & Servers):
  • Windows Server Backup / System Center Data Protection Manager (DPM): If you are using these native Microsoft tools, check the integrity of your backups on a separate, isolated network share. Prepare for a full system restore (Bare Metal Recovery) if necessary.
  • Windows File Versions (Shadow Copies): The ransomware likely attempted to delete these using vssadmin.exe, but sometimes remnants remain. To check, right-click on an encrypted file, select Properties, and go to the Previous Versions tab.
• Linux Systems (Servers & Workstations):
  • Rsync/Bacula/Borg Backup: If you use rsync or a dedicated backup solution like Bacula or Borg, check your backup repositories. Ensure they were not mounted or accessible during the attack.
  • LVM Snapshots: If you use LVM (Logical Volume Manager), check if any snapshots were taken before the infection occurred. You can use lvdisplay to list all logical volumes and snapshots.
• Network Infrastructure (Switches, Firewalls, Routers):
  • Configuration Backups: While your network devices themselves are likely not encrypted, their configurations may have been wiped or altered. Check your central management system or configuration backup repository for the last known good configuration.
• NAS (Network Attached Storage):
  • Snapshot Technology: This is your NAS’s superpower. If you have a Synology, QNAP, TrueNAS, or other enterprise NAS, check their snapshot management interface immediately. The attackers will try to delete snapshots, but if you are fast, you might catch a break and revert to a point-in-time just before the attack.
  • Cloud Sync / Hybrid Backup: If your NAS was configured to sync files to a cloud service like Google Drive, Dropbox, or Azure Blob Storage, get into those cloud services and use their version history to restore files from before the attack.
• DAS (Direct Attached Storage):
  • External Drive Backups: If you have a backup of your DAS on another external drive, check it. Ensure it was not connected to the infected machine at any point.
• ESXi and Hyper-V Hypervisors:
  • VM-Level Backups (Image-Level): This is the gold standard for virtualization. If you are using a solution like Veeam, Nakivo, or Altaro, you can restore entire VMs to a point-in-time before the attack. This is often the cleanest and fastest way to get critical services back online.
  • VM Snapshots: Check your vSphere or Hyper-V Manager for any existing snapshots. The attackers likely tried to delete them, but it’s a critical check.
  • Storage-Based Snapshots: If your VMs are stored on a SAN or NAS that supports snapshots (e.g., NetApp, Dell EMC), you may be able to revert the entire LUN or datastore to a point-in-time before the attack.

Path 3: Last Resort – Data Recovery Software

This is the hail mary. It has a low chance of success with modern ransomware like this but can be a lifeline if no backups exist.

• EaseUS Data Recovery Wizard: A solid user-friendly option. Find it at the EaseUS website.
• Stellar Data Recovery: A powerful tool for deep scanning. Find it at the Stellar Data Recovery official site.
• TestDisk & PhotoRec: These are free, powerful, open-source tools. PhotoRec is especially good at carving out specific file types from a corrupted drive. Find them on the CGSecurity website.

The Last-Ditch Procedure:

1. DO NOT WRITE ANYTHING to the infected drives.
2. Pull the Plug: Physically remove the hard drives from the infected machines.
3. Connect to a Clean Machine: Use a USB-to-SATA adapter or install the drives as a secondary disk in a known-good computer.
4. Run the Recovery Tool: Scan the drives from the clean machine. Be prepared for the possibility that it finds nothing, but you have to try.

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

Winning the battle is only half the war. Now we have to make sure this never happens again.

• Step 1: Verify Your Victory: Spot-check restored files to ensure they’re not corrupted.
• Step 2: Scour the Battlefield: Run a full, deep scan of your entire restored environment with a top-tier antivirus to root out any lingering malware.
• Step 3: Change the Locks: Assume every password is compromised. Force a reset for all user, admin, service, and cloud accounts.
• Step 4: Patch the Walls: Update every OS and every third-party application across your entire network.
• Step 5: Reconnect with Caution: Bring systems back online one by one and monitor network traffic like a hawk for any signs of unusual activity.
• Step 6: Build a Better Fortress: Implement or strengthen a 3-2-1 backup strategy (3 copies, 2 media types, 1 off-site). Test your backups regularly.
• Step 7: Conduct a Post-Mortem: Figure out exactly how they got in. Use that painful knowledge to train your users and harden your defenses.

Conclusion: From Victim to Victor

The Decrypt (Makop) ransomware attack is a brutal, business-threatening event. The attackers’ professional tactics are designed to overwhelm you into compliance. But you are not helpless. A calm, strategic, and aggressive response focused on containment and recovery is how you win. The path to true resilience starts with a multi-layered security posture: advanced endpoint protection, strict network segmentation, and a disciplined, immutable 3-2-1 backup strategy. Paying the ransom only funds their next attack. By understanding their playbook and preparing your defenses, you can transform this catastrophe into a hard-won lesson, emerging from the siege stronger, smarter, and more secure than ever before.

Frequently Asked Questions (FAQ)

Contact Us To Purchase The Decrypt Decryptor Tool