• Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • 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
    • Respond
      • Incident Response
      • Incident Analysis
  • 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
    • Press Release
    • Threat Advisory
  • Company
    • About Us
    • Careers
    • Contact
Rewterz Threat Alert – Echobot Variant Exploits 77 Remote Code Execution Flaws
December 13, 2019
Rewterz Threat Alert – New Monero Cryptominer Discovered
December 16, 2019

Rewterz Threat Alert – Cryptocurrency Miner Delivered via Hawkeye Keylogger

December 13, 2019

Severity

Medium

Analysis Summary

In a resume-themed email campaign analyzed by Cofense, the Hawkeye keylogger was found being used as a first-stage downloader for a cryptocurrency miner. The email claims to have a resume attached in the form of a ZIP archive. Once opened, the ZIP archive delivers the Hawkeye Reborn V9 keylogger to the victim’s system. This keylogger is typically used to monitor systems, gather sensitive information from the machine, and exfiltrate the information to a C2 server. However, despite it not being advertised as loader, the operator behind this campaign leverages its file installation feature (normally used for establishing persistence) to download and execute a cryptocurrency miner. Specifically, it downloads an older version of the open-source CGMiner. Although the current version of CGMiner only mines Bitcoin and removed GPU/CPU mining support, the older version allows the operator to instead mine Litecoin while leveraging the CPU/GPU mining functionality. In their blog post, Cofense provides recommendations for detecting various activities taking place through the infection chain.

Impact

Exposure of sensitive information

Indicators of Compromise

MD5

  • 3866532d537df4795d88f97c38c1c25a
  • 4a7d5d67ce8e6a890f4a272be3f782bd
  • a381ba89d294f120dd76a684bda24276

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
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • 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
    • About Us
    • Careers
    • Contact
COPYRIGHT © REWTERZ. ALL RIGHTS RESERVED.