Building Threat Feed Aggregation With Misp

---
name: building-threat-feed-aggregation-with-misp
description: Dağıt: MISP (Malware Information Sharing Platform) to aggregate, correlate, and distribute threat intelligence feeds from multiple sources for centralized IOC management and automated SIEM
  integration.
tags:
- misp
- siem-integration
- threat-feed
- correlation
- threat-intelligence
- indicator
- fetih
- sharing
- cybersecurity
- aggregation
- siber-güvenlik
triggers:
- IOC
- aggregation
- api
- building
- container
- email
- feed
- http
- indicator of compromise
- log
- malware
- misp
category: threat-intelligence
source_subdomain: threat-intelligence
nist_csf:
- ID.RA-01
- ID.RA-05
- DE.CM-01
- DE.AE-02
adapted_for: fetih
---

# Building Threat Feed Aggregation with Misp


## Genel Bakış

MISP is the leading open-source threat intelligence platform for collecting, storing, distributing, and sharing cybersecurity indicators and threat intelligence. It aggregates feeds from OSINT sources, commercial providers, and sharing communities into a unified platform with automatic correlation, STIX/TAXII export, and direct integration with SIEMs and security tools. bu skill covers Dağıt:ing MISP via Docker, configuring feeds from sources like abuse.ch, AlienVault OTX, and CIRCL, setting up automated feed synchronization, and integrating with Splunk, Elasticsearch, and SOAR platforms.


## Ne Zaman Kullanılır

- Dağıt:ing yaparken or configuring building threat feed aggregation with misp capabilities in your environment
- establishing yaparken: security controls aligned to compliance requirements
- building yaparken or improving security architecture for this domain
- conducting yaparken security assessments that require this implementation

## Ön Gereksinimler

- Docker and Docker Compose for Dağıt:ment
- Python 3.9+ with `pymisp` library for API interaction
- Linux server with 8GB+ RAM for production Dağıt:ment
- Understanding of IOC types and threat intelligence lifecycle
- Network Erişim: external feed URLs

## Key Concepts

### MISP Architecture

MISP stores threat intelligence as Events containing Attributes (IOCs) organized by type and category. Events can have Tags (MITRE ATT&CK, TLP marking, sector tags), Galaxies (threat actor profiles, malware families, attack patterns), and Objects (structured groupings of related attributes). Events are correlated automatically across the instance.

### Feed Types

MISP supports three feed formats: MISP format (native JSON events), CSV (comma-separated IOCs), and freetext (unstructured text with automatic IOC extraction). Feeds can be remote (fetched from URLs) or local (uploaded files). MISP ships with 80+ default OSINT feeds including abuse.ch URLhaus, Botvrij, CIRCL OSINT, and malware traffic analysis.

### Sharing and Synchronization

MISP instances can synchronize with other MISP instances via push/pull mechanisms. Sharing groups control distribution (organization only, this community, connected communities, all communities). The TAXII server module enables integration with STIX/TAXII consumers.

## İş Akışı

### Adım 1: Dağıt: MISP with Docker

```yaml
services:
  misp:
    image: coolacid/misp-docker:core-latest
    container_name: misp
    restart: unless-stopped
    ports:
      - "443:443"
      - "80:80"
    environment:
      - MYSQL_HOST=misp-db
      - MYSQL_DATABASE=misp
      - MYSQL_USER=misp
      - MYSQL_PASSWORD=misp_db_password_change_me
      - MISP_ADMIN_EMAIL=admin@organization.com
      - MISP_ADMIN_PASSPHRASE=admin_password_change_me
      - MISP_BASEURL=https://misp.organization.com
      - POSTFIX_RELAY_HOST=smtp.organization.com
      - TIMEZONE=UTC
    volumes:
      - misp-data:/var/www/MISP/app/files
      - misp-config:/var/www/MISP/app/Config
    depends_on:
      - misp-db
      - misp-redis

  misp-db:
    image: mysql:8.0
    container_name: misp-db
    restart: unless-stopped
    environment:
      - MYSQL_DATABASE=misp
      - MYSQL_USER=misp
      - MYSQL_PASSWORD=misp_db_password_change_me
      - MYSQL_ROOT_PASSWORD=root_password_change_me
    volumes:
      - misp-db-data:/var/lib/mysql

  misp-redis:
    image: redis:7
    container_name: misp-redis
    restart: unless-stopped

volumes:
  misp-data:
  misp-config:
  misp-db-data:
```

### Adım 2: Configure Feeds via PyMISP API

```python
from pymisp import PyMISP, MISPFeed
import json

class MISPFeedManager:
    def __init__(self, misp_url, misp_key, verify_ssl=False):
        self.misp = PyMISP(misp_url, misp_key, verify_ssl)
        print(f"[+] Connected to MISP: {misp_url}")

    def list_feeds(self):
        """List all configured feeds."""
        feeds = self.misp.feeds()
        enabled = [f for f in feeds if f.get("Feed", {}).get("enabled")]
        disabled = [f for f in feeds if not f.get("Feed", {}).get("enabled")]
        print(f"[+] Feeds: {len(enabled)} enabled, {len(disabled)} disabled")
        return feeds

    def enable_default_feeds(self):
        """Enable recommended default OSINT feeds."""
        recommended_feeds = [
            "CIRCL OSINT Feed",
            "Botvrij.eu - Indicators of Compromise",
            "abuse.ch URLhaus Host file",
            "abuse.ch Feodo Tracker",
            "abuse.ch SSL Blacklist",
            "malwaredomainlist",
            "CyberCure - IP Feed",
        ]

        feeds = self.misp.feeds()
        enabled_count = 0
        for feed in feeds:
            feed_data = feed.get("Feed", {})
            if feed_data.get("name") in recommended_feeds:
                if not feed_data.get("enabled"):
                    self.misp.enable_feed(feed_data["id"])
                    self.misp.enable_feed_cache(feed_data["id"])
                    enabled_count += 1
                    print(f"  [+] Enabled: {feed_data['name']}")

        print(f"[+] Enabled {enabled_count} feeds")

    def add_custom_feed(self, name, url, provider, feed_format="csv",
                        input_source="network", enabled=True):
        """Add a custom threat intelligence feed."""
        feed = MISPFeed()
        feed.name = name
        feed.provider = provider
        feed.url = url
        feed.source_format = feed_format
        feed.input_source = input_source
        feed.enabled = enabled
        feed.caching_enabled = True
        feed.publish = False
        feed.distribution = "3"  # All communities

        result = self.misp.add_feed(feed)
        if "Feed" in result:
            feed_id = result["Feed"]["id"]
            print(f"[+] Added feed: {name} (ID: {feed_id})")
            return feed_id
        else:
            print(f"[-] Error adding feed: {result}")
            return None

    def fetch_all_feeds(self):
        """Trigger fetch for all enabled feeds."""
        feeds = self.misp.feeds()
        for feed in feeds:
            feed_data = feed.get("Feed", {})
            if feed_data.get("enabled"):
                self.misp.fetch_feed(feed_data["id"])
                print(f"  [*] Fetching: {feed_data['name']}")
        print("[+] Feed fetch triggered for all enabled feeds")

manager = MISPFeedManager(
    "https://misp.organization.com",
    "YOUR_MISP_API_KEY",
)
manager.enable_default_feeds()
manager.add_custom_feed(
    name="Abuse.ch MalwareBazaar Recent",
    url="https://bazaar.abuse.ch/export/csv/recent/",
    provider="abuse.ch",
    feed_format="csv",
)
manager.fetch_all_feeds()
```

### Adım 3: Search and Correlate Indicators

```python
def search_indicators(misp, value=None, type_attribute=None, tags=None, last_days=30):
    """Search MISP for indicators with correlation."""
    from datetime import datetime, timedelta
    date_from = (datetime.now() - timedelta(days=last_days)).strftime("%Y-%m-%d")

    search_params = {
        "date_from": date_from,
        "published": True,
        "enforceWarninglist": True,
    }
    if value:
        search_params["value"] = value
    if type_attribute:
        search_params["type_attribute"] = type_attribute
    if tags:
        search_params["tags"] = tags

    results = misp.search("attributes", **search_params)
    attributes = results.get("Attribute", [])
    print(f"[+] Search returned {len(attributes)} attributes")

    # Group by event for context
    events = {}
    for attr in attributes:
        event_id = attr.get("event_id", "")
        if event_id not in events:
            events[event_id] = {"attributes": [], "tags": set()}
        events[event_id]["attributes"].append({
            "type": attr.get("type", ""),
            "value": attr.get("value", ""),
            "category": attr.get("category", ""),
            "timestamp": attr.get("timestamp", ""),
        })
        for tag in attr.get("Tag", []):
            events[event_id]["tags"].add(tag.get("name", ""))

    return {"attributes": attributes, "events": events}

misp = manager.misp
results = search_indicators(misp, value="203.0.113.1")
results_by_type = search_indicators(misp, type_attribute="ip-dst", last_days=7)
results_by_tag = search_indicators(misp, tags=["tlp:white", "type:OSINT"])
```

### Adım 4: Export to SIEM (Splunk / Elasticsearch)

```python
import requests
from datetime import datetime, timedelta

class MISPSIEMExporter:
    def __init__(self, misp_client):
        self.misp = misp_client

    def export_to_splunk(self, splunk_url, hec_token, days=7):
        """Export recent MISP indicators to Splunk via HEC."""
        date_from = (datetime.now() - timedelta(days=days)).strftime("%Y-%m-%d")
        results = self.misp.search("attributes", date_from=date_from,
                                    published=True, enforceWarninglist=True)
        attributes = results.get("Attribute", [])

        headers = {"Authorization": f"Splunk {hec_token}"}
        exported = 0
        for attr in attributes:
            event = {
                "event": {
                    "ioc_type": attr.get("type", ""),
                    "ioc_value": attr.get("value", ""),
                    "category": attr.get("category", ""),
                    "event_id": attr.get("event_id", ""),
                    "timestamp": attr.get("timestamp", ""),
                    "tags": [t.get("name", "") for t in attr.get("Tag", [])],
                },
                "sourcetype": "misp:attribute",
                "source": "misp",
                "index": "threat_intel",
            }
            resp = requests.post(
                f"{splunk_url}/services/collector/event",
                headers=headers, json=event,
                verify=not os.environ.get("SKIP_TLS_VERIFY", "").lower() == "true",  # Set SKIP_TLS_VERIFY=true for self-signed certs in lab environments
            )
            if resp.status_code == 200:
                exported += 1

        print(f"[+] Exported {exported}/{len(attributes)} indicators to Splunk")

    def export_ioc_list(self, output_file, ioc_types=None, days=30):
        """Export flat IOC list for firewall/proxy blocklists."""
        ioc_types = ioc_types or ["ip-dst", "domain", "hostname", "url"]
        date_from = (datetime.now() - timedelta(days=days)).strftime("%Y-%m-%d")

        all_iocs = []
        for ioc_type in ioc_types:
            results = self.misp.search(
                "attributes", type_attribute=ioc_type,
                date_from=date_from, published=True,
                enforceWarninglist=True,
            )
            for attr in results.get("Attribute", []):
                all_iocs.append(attr.get("value", ""))

        unique_iocs = sorted(set(all_iocs))
        with open(output_file, "w") as f:
            for ioc in unique_iocs:
                f.write(f"{ioc}\n")

        print(f"[+] Exported {len(unique_iocs)} unique IOCs to {output_file}")

exporter = MISPSIEMExporter(misp)
exporter.export_ioc_list("blocklist_ips.txt", ioc_types=["ip-dst"], days=7)
```

## Doğrulama Criteria

- MISP Dağıtılmış and accessible via web interface and API
- Default OSINT feeds enabled and fetching data
- Custom feeds added and ingesting indicators
- Indicators searchable with correlation across events
- IOCs exported to SIEM (Splunk/Elasticsearch) successfully
- Blocklists generated for firewall/proxy integration

## References

- [MISP Project](https://www.misp-project.org/)
- [MISP GitHub Repository](https://github.com/MISP/MISP)
- [MISP Default Feeds](https://www.misp-project.org/feeds/)
- [PyMISP Documentation](https://pymisp.readthedocs.io/)
- [Kraven Security: MISP Using Feeds](https://kravensecurity.com/threat-intelligence-with-misp-part-4-using-feeds/)
- [Cosive: What is MISP](https://www.cosive.com/blog/what-is-misp-the-ultimate-introduction)

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