Guillaume BOURGEOIS
36 lines
2.9 KiB
YAML
36 lines
2.9 KiB
YAML
name: "HarfangLab Security Events → OCSF"
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description: "Maps a HarfangLab EDR security event/alert (/api/data/alert/alert/Alert/, results_path = results) to OCSF. The matched process is the actor (actor.*). Process fields are best-effort; confirm against a live sample via the builder Test."
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field_mappings:
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title: "rule_name"
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severity: "level = 'critical' ? 5 : (level = 'high' ? 4 : (level = 'medium' ? 3 : 2))"
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description: "alert_type"
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# results_path = results; source_path is JSONata over ONE alert object.
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# Paths absent from a given alert are skipped at ingestion, so extra entries are safe.
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ocsf:
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# ── Endpoint ──────────────────────────────────────────────────────
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- { source_path: "agent.hostname", ocsf_field: "src_endpoint.hostname" }
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- { source_path: "agent.domainname", ocsf_field: "src_endpoint.domain" }
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- { source_path: "agent.osproducttype", ocsf_field: "src_endpoint.os.name" }
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- { source_path: "agent.ostype", ocsf_field: "src_endpoint.os.type" }
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- { source_path: "agent.agentid", ocsf_field: "device.uid" }
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# ── Finding ───────────────────────────────────────────────────────
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- { source_path: "id", ocsf_field: "finding_info.uid" }
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- { source_path: "rule_name", ocsf_field: "finding_info.title" }
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- { source_path: "alert_time", ocsf_field: "finding_info.created_time" }
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- { source_path: "last_update", ocsf_field: "finding_info.modified_time" }
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- { source_path: "alert_type", ocsf_field: "finding_info.analytic.type" }
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- { source_path: "status", ocsf_field: "status" }
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- { source_path: "maturity", ocsf_field: "status_detail" }
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# ── Matched process — the actor ───────────────────────────────────
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- { source_path: "process.process_name", ocsf_field: "actor.process.name" }
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- { source_path: "process.image_name", ocsf_field: "actor.process.file.path" }
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- { source_path: "process.commandline", ocsf_field: "actor.process.cmd_line" }
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- { source_path: "process.username", ocsf_field: "actor.user.name" }
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- { source_path: "process.integrity_level", ocsf_field: "actor.process.integrity" }
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- { source_path: "process.pid", ocsf_field: "actor.process.pid" }
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- { source_path: "process.hashes.sha256", ocsf_field: "actor.process.file.hashes.sha256" }
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- { source_path: "process.hashes.sha1", ocsf_field: "actor.process.file.hashes.sha1" }
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- { source_path: "process.hashes.md5", ocsf_field: "actor.process.file.hashes.md5" }
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- { source_path: "process.parent_image", ocsf_field: "actor.process.parent_process.name" }
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- { source_path: "process.parent_commandline", ocsf_field: "actor.process.parent_process.cmd_line" }
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