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Rewterz Threat Alert – Covid-19 Themed Malicious URLs
September 1, 2020
Rewterz Threat Alert – Lokibot IOCs
September 1, 2020

Rewterz Threat Alert – Active QNAP NAS Exploitation

September 1, 2020

Severity

High

Analysis Summary

Researchers reports on an in the wild exploitation of a vulnerability in QNAP NAS devices. This vulnerability was not publicly reported on prior to these findings. The vulnerability exploited exists in the CGI program used when users log out of the QNAP NAS device. By exploiting the vulnerability, attackers are able to gain unauthenticated remote code execution capabilities. In this campaign, the remote code execution capabilities are used to download a payload using wget. Based on current observations, the researchers have been unable to identify the ultimate goal of the attackers as further malware is not installed at this time. Two additional files were discovered on the server hosting the payload currently being downloaded. Specifically, they are two text files, one containing 2 lines of seemingly random text and the other being a bash reverse shell script. The server was found to be running SSH, Metasploit, Apache httpd, and other services.

Impact

Remote code execution

Indicators of Compromise

IP

  • 165[.]227[.]39[.]105
  • 219[.]85[.]109[.]140
  • 103[.]209[.]253[.]252

URL

  • http[:]//165[.]227[.]39[.]105[:]8096/[.]sl
  • http[:]//165[.]227[.]39[.]105[:]8096/rv
  • http[:]//165[.]227[.]39[.]105[:]8096/aaa

Remediation

  • Block all threat indicators at your respective controls.
  • Ensure anti-virus software and associated files are up to date.
  • Search for existing signs of the indicated IoCs in your environment.
  • 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
    • About Us
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    • Contact
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