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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
67 lines
2.4 KiB
Markdown
67 lines
2.4 KiB
Markdown
# API Reference: Threat Hunting with Elastic SIEM Agent
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## Overview
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Performs proactive threat hunting against Elasticsearch indices using structured queries for LOLBin abuse, credential dumping, lateral movement, and persistence mechanisms mapped to MITRE ATT&CK.
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## Dependencies
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| Package | Version | Purpose |
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|---------|---------|---------|
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| elasticsearch | >= 8.0 | Elasticsearch Python client for queries |
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## Core Functions
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### `get_es_client(host, api_key, verify_certs)`
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Creates an authenticated Elasticsearch client.
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- **Parameters**: `host` (str), `api_key` (str, optional), `verify_certs` (bool)
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- **Returns**: `Elasticsearch` client instance
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### `hunt_lolbins(es, index, days)`
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Hunts for LOLBin abuse (certutil, mshta, regsvr32, etc.) with suspicious arguments.
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- **ATT&CK**: T1105 (Ingress Tool Transfer), T1218 (Signed Binary Proxy Execution)
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- **Returns**: `dict` with `hunt`, `total_hits`, `findings`
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### `hunt_credential_dumping(es, index, days)`
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Detects procdump targeting lsass, mimikatz execution, sekurlsa PowerShell commands.
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- **ATT&CK**: T1003 (OS Credential Dumping)
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- **Returns**: `dict` with hunt results
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### `hunt_lateral_movement(es, index, days)`
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Identifies PsExec, Invoke-Command, and SMB/WinRM network flows.
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- **ATT&CK**: T1021 (Remote Services)
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- **Returns**: `dict` with hunt results
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### `hunt_persistence(es, index, days)`
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Detects scheduled task creation and registry Run key modifications.
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- **ATT&CK**: T1053 (Scheduled Task), T1547 (Boot/Logon Autostart)
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- **Returns**: `dict` with hunt results
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### `create_detection_rule(es, kibana_url, name, query, severity, risk_score)`
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Generates a detection rule payload for Elastic Security API deployment.
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- **Returns**: `dict` - rule configuration ready for POST to `/api/detection_engine/rules`
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### `run_all_hunts(es, days)`
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Executes all hunt queries and aggregates results.
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## Elasticsearch Indices Used
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| Index Pattern | Data Source |
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|---------------|-------------|
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| `logs-endpoint.events.process-*` | Elastic Agent process events |
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| `logs-endpoint.events.*` | All endpoint event types |
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| `logs-windows.sysmon_operational-*` | Sysmon via Winlogbeat |
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## Environment Variables
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| Variable | Required | Description |
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|----------|----------|-------------|
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| `ES_HOST` | No | Elasticsearch URL (default: https://localhost:9200) |
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| `ES_API_KEY` | No | API key for authentication |
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## Usage
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```bash
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python agent.py https://elastic.corp.local:9200
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```
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