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- Add scripts/agent.py and references/api-reference.md to all remaining skills - Update all 648 LICENSE files: copyright now reads 'Mahipal' - Add implementing-security-monitoring-with-datadog (new skill with full anatomy) - All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md
45 lines
1.5 KiB
Markdown
45 lines
1.5 KiB
Markdown
# API Reference — Performing OT Vulnerability Scanning Safely
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## Libraries Used
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- **socket**: Rate-limited TCP port scanning
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- **subprocess**: Execute tshark (passive), nmap (OT-safe settings)
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- **time**: Rate limiting between scan probes
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- **xml.etree.ElementTree**: Parse nmap XML output
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## CLI Interface
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```
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python agent.py passive [--interface eth0] [--duration 60]
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python agent.py tcp --target 192.168.1.10 [--rate 0.5]
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python agent.py nmap --target 192.168.1.0/24 [--timing T1]
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python agent.py checklist --target 192.168.1.0/24
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```
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## Core Functions
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### `passive_discovery(interface, duration)` — Zero-packet host discovery
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Uses tshark to capture and analyze existing traffic. No packets sent.
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### `safe_tcp_scan(target, ports, rate_limit)` — Rate-limited scanning
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Default 500ms between probes. Skips high-risk protocols (DNP3, IEC 104).
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### `nmap_safe_scan(target, timing)` — OT-safe nmap configuration
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Settings: T1 timing, version-light, max-retries 1, 500ms scan-delay.
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Only T0/T1/T2 allowed — T3+ prohibited for OT.
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### `pre_scan_checklist(target)` — 10-step safety checklist
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## OT Protocol Safety Classification
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| Port | Protocol | Scan Risk | Safe to Scan |
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|------|----------|-----------|-------------|
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| 502 | Modbus | LOW | Yes |
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| 4840 | OPC-UA | LOW | Yes |
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| 47808 | BACnet | LOW | Yes |
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| 102 | S7Comm | MEDIUM | Yes (careful) |
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| 44818 | EtherNet/IP | MEDIUM | Yes (careful) |
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| 20000 | DNP3 | HIGH | No — skip |
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| 2404 | IEC 104 | HIGH | No — skip |
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## Dependencies
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System: tshark, nmap (optional)
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No Python packages required.
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