Query: rule covering Detects the execution of a renamed instance of the Remote Monitoring and Management (RMM) tool, MeshAgent. RMM tools suc
Matching passage: Sigma rule: Detects the execution of a renamed instance of the Remote Monitoring and Management (RMM) tool, MeshAgent. RMM tools suc. Logsource: windows / process_creation. Rule: title: Remote Access Tool - Renamed MeshAgent Execution - Windows id: b471f462-eb0d-4832-be35-28d94bdb4780 related: - id: bd3b5eaa-439d-4a42-8f35-a49f5c8a2582 type: similar - id: 2fbbe9ff-0afc-470b-bdc0-592198339968 type: derived status: experimental description: 'Detects the execution of a renamed instance of the Remote Monitoring and Management (RMM) tool, MeshAgent. RMM tools such as MeshAgent are commonly utilized by IT administrators for legitimate remote support and system management. However, malicious actors may exploit these tools by renaming them to bypass detection mechanisms, enabling unauthorized access and control over compromised systems. ' 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 author: Norbert Jaśniewicz (AlphaSOC) date: 2025-05-19 tags: - attack.command-and-control - attack.stealth - attack.t1219.002 - attack.t1036.003 logsource: category: process_creation product: windows detection: selection_meshagent: - CommandLine|contains: --meshServiceName - OriginalFileName|contains: meshagent filter_main_legitimate: Image|endswith: \meshagent.exe condition: selection_meshagent and not 1 of filter_main_* falsepositives: - Unknown level: high
Near-miss passage: Sigma rule: Detects the start of a non built-in assistive technology applications via "Atbroker.EXE".. Logsource: windows / process_creation. Rule: title: Uncommon Assistive Technology Applications Execution Via AtBroker.EXE id: f24bcaea-0cd1-11eb-adc1-0242ac120002 status: test description: Detects the start of a non built-in assistive technology applications via "Atbroker.EXE". references: - http://www.hexacorn.com/blog/2016/07/22/beyond-good-ol-run-key-part-42/ - https://lolbas-project.github.io/lolbas/Binaries/Atbroker/ author: Mateusz Wydra, oscd.community date: 2020-10-12 modified: 2024-03-06 tags: - attack.stealth - attack.t1218 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \AtBroker.exe - OriginalFileName: AtBroker.exe selection_cli: CommandLine|contains: start filter_main_builtin: CommandLine|contains: - animations - audiodescription - caretbrowsing - caretwidth - colorfiltering - cursorindicator - cursorscheme - filterkeys - focusborderheight - focusborderwidth - highcontrast - keyboardcues - keyboardpref - livecaptions - magnifierpane - messageduration - minimumhitradius - mousekeys - Narrator - osk - overlappedcontent - showsounds - soundsentry - speechreco - stickykeys - togglekeys - voiceaccess - windowarranging - windowtracking - windowtrackingtimeout - windowtrackingzorder filter_optional_java: CommandLine|contains: Oracle_JavaAccessBridge condition: all of selection_* and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - Legitimate, non-default assistive technology applications execution level: medium