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Remote Access Tool - Renamed MeshAgent Execution - Windows

Sigma Rules

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Summary
This detection rule identifies the execution of a renamed instance of the Remote Monitoring and Management (RMM) tool MeshAgent on Windows systems. RMM tools like MeshAgent are utilized by IT professionals for legitimate administrative purposes, such as remote support and system management. However, threat actors may rename these tools to evade detection systems, allowing unauthorized access and control over affected machines. The rule specifically looks for command line entries that include the '--meshServiceName' option and checks if the original file name contains 'meshagent', while filtering out instances of the legitimate 'meshagent.exe' file to reduce false positives. The emphasis on detecting renamed instances of legitimate tools is critical due to the rising trend of attackers exploiting such applications for malicious purposes.
Categories
  • Windows
  • Endpoint
Data Sources
  • Process
Created: 2025-05-19