Tools for Threat Data Collection

(Shodan, Maltego, SpiderFoot, Censys)

Threat Intelligence relies heavily on collecting accurate, timely, and relevant data. Several specialized tools help analysts discover exposed assets, map digital footprints, investigate threats, and monitor attacker activity. Below are four of the most widely used tools for threat data collection.

1. Shodan

What it is:
Shodan is a search engine for internet-connected devices. Instead of indexing websites, it indexes IP addresses, ports, banners, and IoT devices across the internet.

What Shodan Collects:

• Open ports
• Services running on devices
• Device types (CCTV, routers, firewalls, servers)
• Vulnerabilities (CVEs)
• Geolocation & ISP info

Use Cases in Threat Intelligence:

• Attack surface discovery
• Identifying exposed devices
• Monitoring internet-facing assets
• Detecting misconfigured or vulnerable systems
• Tracking botnet activity

Why it matters:
Shodan basically lets you “see your organization from an attacker’s lens.”

2. Maltego

What it is:
Maltego is a powerful data mining and link analysis tool used for mapping digital footprints and exploring relationships between entities.

What Maltego Collects:

• DNS records
• Social media profiles
• Email addresses
• Domains and subdomains
• Infrastructure data
• Dark web and OSINT sources

Use Cases in Threat Intelligence:

• Threat actor profiling
• Infrastructure mapping
• Investigating phishing campaigns
• Mapping relationships between entities (domains, emails, persons)
• Digital footprints of brands or organizations

Why it matters:
Maltego visualizes relationships, making complex TI investigations easier to understand.

3. SpiderFoot

What it is:
SpiderFoot is an automated OSINT and threat intelligence reconnaissance tool. It aggregates data from over 200+ modules and sources.

What SpiderFoot Collects:

• Domains, subdomains
• IP addresses & ASN details
• Email addresses
• Credentials leaks
• Dark web mentions
• Vulnerabilities and misconfigurations

Use Cases in Threat Intelligence:

• Automated reconnaissance
• Attack surface enumeration
• Monitoring brand or domain exposure
• Identifying breached data connected to your organization
• Correlating data from multiple OSINT sources

Why it matters:
It’s like having an automated TI assistant running constant scans for digital footprint exposure.

4. Censys

What it is:
Censys is a search and monitoring platform that scans the entire internet to index public-facing servers and services, similar to Shodan but more research-focused.

What Censys Collects:

• SSL/TLS certificates
• Open ports
• Service banners
• IPv4 and IPv6 host data
• Cloud infrastructure insights

Use Cases in Threat Intelligence:

• Certificate transparency monitoring
• Discovery of shadow IT
• Tracking infrastructure changes
• Identifying vulnerable systems
• Comparing internet-facing exposure across time

Why it matters:
Censys is particularly strong for compliance audits and monitoring internet-facing infrastructure changes.

Quick Comparison Table

Summary

These tools are essential for threat data collection because they help analysts:

✔ Identify exposed assets
✔ Map attacker infrastructure
✔ Detect vulnerabilities earlier
✔ Trace relationships between malicious entities
✔ Monitor security posture continuously

Used together, they provide a powerful foundation for any Threat Intelligence program.