azure-external-attack-surface-management git:20260810.54b4e19A

Immutable. This exact content is served forever at /api/v1/blob/8d91963d486b2a62.

---
name: azure-external-attack-surface-management
description: Expert knowledge for Azure External Attack Surface Management development including configuration. Use when configuring asset filters, inventory queries, data connections, or policy automation in Defender EASM, and other Azure External Attack Surface Management related development tasks. Not for Azure Defender For Cloud (use azure-defender-for-cloud), Azure Security (use azure-security), Azure Firewall (use azure-firewall), Azure Web Application Firewall (use azure-web-application-firewall).
compatibility: Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or fetch_webpage to retrieve documentation.
metadata:
  generated_at: "2026-08-09"
  generator: "docs2skills/1.0.0"
---
# Azure External Attack Surface Management Skill

This skill provides expert guidance for Azure External Attack Surface Management. Covers configuration. It combines local quick-reference content with remote documentation fetching capabilities.

## How to Use This Skill

> **IMPORTANT for Agent**: Use the **Category Index** below to locate relevant sections. For categories with line ranges (e.g., `L35-L120`), use `read_file` with the specified lines. For categories with file links (e.g., `[security.md](security.md)`), use `read_file` on the linked reference file

> **IMPORTANT for Agent**: If `metadata.generated_at` is more than 3 months old, suggest the user pull the latest version from the repository. If `mcp_microsoftdocs` tools are not available, suggest the user install it: [Installation Guide](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)

This skill requires **network access** to fetch documentation content:
- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch` with query string `from=learn-agent-skill`. Returns Markdown.
- **Fallback**: Use `fetch_webpage` with query string `from=learn-agent-skill&accept=text/markdown`. Returns Markdown.

## Category Index

| Category | Lines | Description |
|----------|-------|-------------|
| Configuration | L29-L42 | Configuring Defender EASM asset filters (domains, hosts, IPs, IP blocks, ASNs, pages, SSL certs, contacts), inventory filter parameters, data connections, and policy automation. |

### Configuration
| Topic | URL |
|-------|-----|
| Filter ASN assets in Defender EASM inventory | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/asn-asset-filters |
| Configure contact asset filters in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/contact-asset-filters |
| Configure Defender EASM data connections to Log Analytics and ADX | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/data-connections |
| Apply domain-specific filters in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/domain-asset-filters |
| Use host asset filters in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/host-asset-filters |
| Use Defender EASM inventory filter parameters | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/inventory-filters |
| Filter IP address assets in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/ip-address-asset-filters |
| Filter IP block assets in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/ip-block-asset-filters |
| Configure page asset filters in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/page-asset-filters |
| Configure Defender EASM policy engine automation | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/policy-engine |
| Use SSL certificate asset filters in Defender EASM | https://learn.microsoft.com/en-us/azure/external-attack-surface-management/ssl-certificate-asset-filters |