Initial commit - 611 cybersecurity skills across all subdomains

skills/configuring-host-based-intrusion-detection/references/standards.md

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+# Standards & References - Configuring Host-Based Intrusion Detection
+
+## Primary Standards
+
+### NIST SP 800-94 Rev 1 - Guide to Intrusion Detection and Prevention Systems
+- **Publisher**: NIST
+- **Scope**: Architecture, deployment, and management of IDPS including host-based systems
+
+### PCI DSS 4.0 Requirement 11.5 - File Integrity Monitoring
+- **Publisher**: PCI SSC
+- **Requirement**: Deploy FIM to alert on unauthorized modification of critical files
+- **Scope**: System files, configuration files, content files on in-scope systems
+
+### CIS Control 3 - Data Protection (v8)
+- **Publisher**: CIS
+- **Relevance**: Sub-control 3.14 requires monitoring for unauthorized changes to sensitive data
+
+## Compliance Mappings
+
+| Framework | Requirement | HIDS Coverage |
+|-----------|------------|--------------|
+| PCI DSS 4.0 | 11.5.2 - FIM mechanism deployed | Wazuh syscheck module |
+| NIST 800-53 | SI-7 Software, Firmware, and Information Integrity | File integrity monitoring |
+| NIST 800-53 | SI-4 System Monitoring | HIDS log analysis and alerting |
+| HIPAA | 164.312(b) - Audit controls | File access and change monitoring |
+| ISO 27001 | A.12.4.1 - Event logging | HIDS event collection and analysis |
+
+## Supporting References
+
+- **Wazuh Documentation**: https://documentation.wazuh.com/
+- **OSSEC Documentation**: https://www.ossec.net/docs/
+- **Wazuh FIM Reference**: https://documentation.wazuh.com/current/user-manual/capabilities/file-integrity/
+- **Wazuh Ruleset**: https://github.com/wazuh/wazuh-ruleset

skills/configuring-host-based-intrusion-detection/references/workflows.md

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+# Workflows - Configuring Host-Based Intrusion Detection
+
+## Workflow 1: Wazuh HIDS Deployment
+
+```
+[Deploy Wazuh Manager]
+    │
+    ▼
+[Configure FIM, rootcheck, and log analysis modules]
+    │
+    ▼
+[Deploy agents to pilot endpoints]
+    │
+    ▼
+[Establish baseline (48 hours)]
+    │
+    ▼
+[Tune rules: suppress false positives, add exclusions]
+    │
+    ▼
+[Deploy agents to production fleet]
+    │
+    ▼
+[Integrate with SIEM]
+    │
+    ▼
+[Create dashboards and alert workflows]
+```
+
+## Workflow 2: FIM Alert Investigation
+
+```
+[FIM alert: File modified]
+    │
+    ▼
+[Check file path and change details]
+    │
+    ├── Known system update ──► [Correlate with patch window, close alert]
+    ├── Authorized config change ──► [Verify change ticket, close alert]
+    └── Unauthorized change ──► [Investigate]
+                                     │
+                                     ├── Determine who/what changed the file
+                                     ├── Review process tree and timeline
+                                     │
+                                     ├── Malicious ──► [Escalate to IR]
+                                     └── Operational ──► [Update change process]
+```