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Rewterz Threat Alert – Cryptocurrency Miner Delivered via Hawkeye Keylogger
December 13, 2019
Rewterz Threat Advisory – CVE-2019-14568 – Intel Privilege Escalation Flaw in Rapid Storage Technology
December 18, 2019

Rewterz Threat Alert – New Monero Cryptominer Discovered

December 16, 2019

Severity

Medium

Analysis Summary

A new Monero cryptominer has been discovered by Deep Instinct during an incident targeting an Asia-based aviation organization. This miner is persistent, file-less, and leverages the Tor infrastructure. The infection chain begins with a PowerShell command that creates a scheduled task set to run another encoded PowerShell command at system startup. This 2nd encoded PowerShell command, when decoded, reveals the use of a reflective-PE loader that retrieves malicious content stored in the registry and injects it into its own process as run-time compiled C# code.

flow.png

Impact

  • Crypto-Mining malware
  • Sharp spike in CPU usage

Indicators of Compromise

MD5

  • 3866532d537df4795d88f97c38c1c25a
  • 4a7d5d67ce8e6a890f4a272be3f782bd
  • a381ba89d294f120dd76a684bda24276

URL

http[:]//165[.]22[.]50[.]215/functionupdate[.]exe

Remediation

  • Block all threat indicators at your respective controls.
  • Always be suspicious about emails sent by unknown senders.
  • Never click on the links/attachments sent by unknown senders.
  • Services
    • Asses
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
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      • Social Engineering
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    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
    • Blog
    • Threat Advisory
  • Company
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