Treat this document as a focused evidence review: Match required SIEM message syntax before standalone sensor ingestion. Only the official source and traced locations below supply facts. Confirm applicability before acting.
\nThe official Listen for SIEM events on your Defender for Identity standalone sensor from Microsoft supports the following bounded statements:
\nOnly the traced statements above are asserted as source facts. Apply the review to Defender for Identity workspaces, sensors, directory-service accounts, action accounts, network paths, roles, and deployment health after confirming that the source and deployed context match.
\nThe example is not a universal parser contract for every SIEM, event type, or unsupported sensor version. No current deployment state or change approval follows from the source alone. Validate Active Directory, Windows DNS, time, certificates, domain-controller resources, network capture, cloud connectivity, and security operations, and treat examples or options as conditional inputs rather than defaults.
\nDSE recommends using the cited source as the evidence anchor for this decision. Begin by recording scope and current state before deciding whether a change is warranted. Record the source location, examined part of Defender for Identity workspaces, sensors, directory-service accounts, action accounts, network paths, roles, and deployment health, observed and expected states, owner, and reason for deviation.
\nTranslate the conclusion into change control only after documenting dependencies, impact, test method, expected signals, failure signals, and restoration steps. Include Active Directory, Windows DNS, time, certificates, domain-controller resources, network capture, cloud connectivity, and security operations, while excluding secrets and sensitive personal or topology data from ordinary tickets.
\nA reviewer should be able to retrace the decision from Opening overview; Raw Syslog example through sensor inventory, service and action-account permissions, health alerts, connectivity tests, portal state, and controlled detection tests. Record what was collected, where, when, by whom, and which system or role it represents.
\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.
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