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Rewterz Threat Alert – ‘Cable Haunt’ Modem Flaw Leaves 200 Million Devices at Risk
January 14, 2020
Rewterz Threat Advisory – CVE-2019-12713 – Cisco Prime Infrastructure Cross-Site Scripting Vulnerability
January 14, 2020

Rewterz Threat Alert – PowerTrick Malware

January 14, 2020

Severity

High

Analysis Summary

Researchers looked into PowerShell-based backdoor called “PowerTrick” traces back to the initial infection, it was assessed with high confidence at least some of the initial PowerTrick infections are being kicked off as a PowerShell task through normal TrickBot infections utilizing a repurposed backconnect module that can accept commands to execute called “NewBCtest”.

SentinelLabs | PowerTrick execution flow

After the initial stager for the “PowerTrick backdoor” is kicked off, then the actor issues the first command which is to download a larger backdoor. 

SentinelLabs | PowerTrick 22

PowerTrick is designed to execute commands and return the results in Base64 format, the system uses a generated UUID based on computer information as a “botID.”

Figure 2: A unique user ID (UUID) is generated for each bot

The Victim data is then posted back to the controller.

sentinellabs | PowerTrick Figure 3: The victim data is posted back to the backend.

PowerTrick is simply designed to execute commands and return results.

SentinelOne PowerTrick Figure 4: Main functionality of PowerTrick

Impact

  • Bypass security restrictions
  • Exposure of sensitive information.

Indicators of Compromise

IP

  • 5[.]9[.]161[.]246
  • 192[.]99[.]38[.]41
  • 172[.]82[.]152[.]15
  • 193[.]42[.]110[.]176

MD5

  • 413df8eb260b183003a5a1e009734f52
  • 130392209b8b1e4aa37fd5c8da8fa6d5

SHA-256

  • dcf714bfc35071af9fa04c4329c94e385472388f9715f2da7496b415f1a5aa03
  • 254e7a333ecee6d486b4f8892fe292fb7ba1471fe500651c1ba3e7ff5c9e03c8

SHA1

  • 982a8625151246c006b84176496a76b4ef7698dd
  • dacd5b49ac628157fcb9cf8d6e537e851ef29a64

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
      • 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
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