Sigma rule: Remote Access Tool - Potential MeshAgent Execution - Windows

Rule

Title

Remote Access Tool - Potential MeshAgent Execution - Windows

Status

experimental

Level

medium

Author

Norbert Jaśniewicz (AlphaSOC)

Date

2025-05-19

File

rules/windows/process_creation/proc_creation_win_remote_access_tools_meshagent_arguments.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential execution of MeshAgent which is a tool used for remote access.
Historical data shows that threat actors rename MeshAgent binary to evade detection.
Matching command lines with the '--meshServiceName' argument can indicate that the MeshAgent is being used for remote access.

Log source

product

windows

category

process_creation

Detection

selection:
    CommandLine|contains: '--meshServiceName'
condition: selection

False positives (as the rule lists them)

• Environments that legitimately use MeshAgent

Tags

• attack.command-and-control
• attack.t1219.002

MITRE ATT&CK ids this rule names

• T1219.002

Related rules

• 22c45af6-f590-4d44-bab3-b5b2d2a2b6d9 (similar)

References

• https://www.huntress.com/blog/know-thy-enemy-a-novel-november-case-on-persistent-remote-access
• https://thecyberexpress.com/ukraine-hit-by-meshagent-malware-campaign/
• https://wazuh.com/blog/how-to-detect-meshagent-with-wazuh/
• https://www.security.com/threat-intelligence/medusa-ransomware-attacks

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_remote_access_tools_meshagent_arguments.yml