Prometheus Ransomware

Prometheus Ransomware

Introduction: Prometheus Ransomware, first surfacing in February 2021, is a significant cyber threat notorious for practicing double extortion, demanding payment for both a decryptor and the non-release of stolen data. This analysis offers a detailed examination of Prometheus Ransomware, encompassing its targets, spreading techniques, technical intricacies, detection methods, mitigation strategies, and removal processes.

Prometheus Ransomware Overview:

• Emergence:
  • First identified in February 2021.
  • Engages in double extortion, demanding payment for decrypting files and preventing data exposure.
  • Derived from the Thanos ransomware builder.
  • Actors claim ties to the REvil ransomware group.

Targets:

• Industry Focus:
  • Targets diverse industries, including healthcare, finance, government, education, and manufacturing.

Spread Mechanisms:

• Delivery Methods:
  • Spread through Cobalt Strike or similar frameworks.
  • Distributed via email phishing campaigns.
  • Initial access observed through RDP brute-force attacks.

Technical Details:

• Ransomware Family:
  • Prometheus is a Thanos-derived ransomware family.
  • Payloads based on the Thanos Builder’s output.
  • Actors claim ties to the REvil ransomware group.
• Geographical Targets:
  • The ransomware group demonstrates an indiscriminate approach, successfully targeting entities in government, healthcare, oil and gas, and more.
• Execution Process:
  • Attempts to disable multiple services and processes that could interfere with encryption.
  • Deletes shadow copies and employs measures to inhibit the recovery process.
  • Utilizes the Sonar tool for data exfiltration and exchange.
  • Publicizes victim data through a TOR-based blog.

Detection Strategies:

• EDR is proficient in identifying and halting malicious activities and artifacts associated with Prometheus ransomware.

Mitigation Measures:

• EDR facilitates system restoration through Repair or Rollback features.

Removal Process:

• EDR customers are protected from Prometheus ransomware, with no manual updates required. In cases where the policy was set to Detect Only and a device is infected, EDR ‘s unique rollback capability removes the infection and restores files to their original state.

Public Decryption Tools:

• No More Ransom
• Cycraft Prometheus Decryptor

Incident Response:

1. Detection:
   • Identify signs of Prometheus ransomware through security tools and network monitoring.
2. Isolation:
   • Disconnect infected devices from the network to prevent further spread.
3. Removal:
   • Run a malware scan using anti-malware tools to eliminate the Prometheus ransomware.
4. Restoration:
   • Restore encrypted files from backups for data recovery.
5. Expert Consultation:
   • Seek assistance from security experts for a comprehensive assessment and prevention of future attacks.

Proactive Measures:

• Employee Education: Raise awareness among employees about ransomware risks and phishing threats.
• Strong Passwords: Implement strong, unique passwords with regular updates.
• Multi-Factor Authentication: Enable MFA for an additional layer of security.
• Systems Update: Regularly update and patch systems to fix vulnerabilities.
• Backup and Recovery: Implement a robust backup and disaster recovery plan, regularly testing backups for efficacy.

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