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32 lines
1.2 KiB
Markdown
32 lines
1.2 KiB
Markdown
# Standards - Log Source Onboarding in SIEM
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## Common Information Models
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| SIEM Platform | Schema | Documentation |
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| Splunk | CIM (Common Information Model) | docs.splunk.com |
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| Elastic | ECS (Elastic Common Schema) | elastic.co/guide/en/ecs |
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| Microsoft Sentinel | ASIM (Azure Sentinel Information Model) | learn.microsoft.com |
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| Google Chronicle | UDM (Unified Data Model) | cloud.google.com/chronicle |
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| Industry Standard | OCSF (Open Cybersecurity Schema Framework) | ocsf.io |
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## Log Collection Protocols
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| Protocol | Port | Use Case | Security |
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| Syslog UDP | 514 | Network devices, basic forwarding | None |
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| Syslog TCP | 514 | Reliable delivery | None |
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| Syslog TLS | 6514 | Encrypted syslog | TLS 1.2+ |
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| HTTP/S | 443/8088 | REST API, HEC (Splunk) | TLS |
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| Windows WEF | 5985/5986 | Windows Event Forwarding | Kerberos/TLS |
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| SNMP | 161/162 | Network device monitoring | SNMPv3 |
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| S3/Blob | N/A | Cloud log storage | IAM/SAS |
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## NIST SP 800-92 Log Management Guidelines
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- Establish log management infrastructure
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- Define log retention requirements
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- Ensure log data integrity (tamper evidence)
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- Configure time synchronization across all sources
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- Implement log review and analysis procedures
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