# falcon_search_iocs

Search custom IOCs using FQL

Agent View of the PolicyLayer registry record for `falcon_search_iocs`. HTML page: https://policylayer.com/tools/crowdstrike/falcon-search-iocs

## Facts

- Tool: `falcon_search_iocs`
- Server: CrowdStrike Falcon (`@falcon-mcp`) — https://policylayer.com/tools/crowdstrike.md
- Install: `npx -y @falcon-mcp`
- Homepage: https://www.npmjs.com/package/@falcon-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity verified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "falcon_search_iocs",
    "arguments": {}
  }
}
```

## Why falcon_search_iocs is rated Low

This tool retrieves or queries indicator of compromise (IOC) data from the CrowdStrike Falcon platform using FQL query syntax. It performs a search operation without creating, modifying, deleting, or executing any actions. The blast radius of misuse is minimal—an agent could retrieve excessive data or sensitive IOC information, but cannot modify threat intelligence or trigger security responses.

From the tool's own definition: "Tool name 'falcon_search_iocs' combined with description 'Search custom IOCs using FQL' indicates a query/search operation. The verb 'search' and use of FQL (a query language) confirm this is a read-only retrieval action with no side effects."

## Use case

AI agents call falcon_search_iocs to retrieve information from CrowdStrike Falcon without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches CrowdStrike Falcon:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "falcon_search_iocs": {}
  }
}
```

## Other tools on CrowdStrike Falcon (32)

- `falcon_remove_iocs` — Destructive — https://policylayer.com/tools/crowdstrike/falcon-remove-iocs.md
- `falcon_launch_scheduled_report` — Execute — https://policylayer.com/tools/crowdstrike/falcon-launch-scheduled-report.md
- `search_ngsiem` — Execute — https://policylayer.com/tools/crowdstrike/search-ngsiem.md
- `falcon_check_connectivity` — Read — https://policylayer.com/tools/crowdstrike/falcon-check-connectivity.md
- `falcon_count_kubernetes_containers` — Read — https://policylayer.com/tools/crowdstrike/falcon-count-kubernetes-containers.md
- `falcon_download_report_execution` — Read — https://policylayer.com/tools/crowdstrike/falcon-download-report-execution.md
- `falcon_get_behavior_details` — Read — https://policylayer.com/tools/crowdstrike/falcon-get-behavior-details.md
- `falcon_get_detection_details` — Read — https://policylayer.com/tools/crowdstrike/falcon-get-detection-details.md
- `falcon_get_host_details` — Read — https://policylayer.com/tools/crowdstrike/falcon-get-host-details.md
- `falcon_get_incident_details` — Read — https://policylayer.com/tools/crowdstrike/falcon-get-incident-details.md
- `falcon_get_mitre_report` — Read — https://policylayer.com/tools/crowdstrike/falcon-get-mitre-report.md
- `falcon_list_enabled_modules` — Read — https://policylayer.com/tools/crowdstrike/falcon-list-enabled-modules.md
- `falcon_list_modules` — Read — https://policylayer.com/tools/crowdstrike/falcon-list-modules.md
- `falcon_search_actors` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-actors.md
- `falcon_search_applications` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-applications.md
- `falcon_search_behaviors` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-behaviors.md
- `falcon_search_detections` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-detections.md
- `falcon_search_hosts` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-hosts.md
- `falcon_search_images_vulnerabilities` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-images-vulnerabilities.md
- `falcon_search_incidents` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-incidents.md
- `falcon_search_indicators` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-indicators.md
- `falcon_search_kubernetes_containers` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-kubernetes-containers.md
- `falcon_search_report_executions` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-report-executions.md
- `falcon_search_reports` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-reports.md
- `falcon_search_scheduled_reports` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-scheduled-reports.md
- `falcon_search_sensor_usage` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-sensor-usage.md
- `falcon_search_serverless_vulnerabilities` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-serverless-vulnerabilities.md
- `falcon_search_unmanaged_assets` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-unmanaged-assets.md
- `falcon_search_vulnerabilities` — Read — https://policylayer.com/tools/crowdstrike/falcon-search-vulnerabilities.md
- `falcon_show_crowd_score` — Read — https://policylayer.com/tools/crowdstrike/falcon-show-crowd-score.md
- …and 2 more: https://policylayer.com/tools/crowdstrike.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=crowdstrike · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/crowdstrike