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Security48k · #4162

shodan-reconnaissance

Lets your agent use Shodan to gather information in security tests. It's useful for understanding systems before attacks.

What it does

This tool helps find information about internet-connected devices, like computers, servers, and cameras. It uses Shodan to search for specific characteristics of these devices.

When to use it

  • ✓To discover which of a company's devices are exposed on the internet.
  • ✓To look for devices with known security vulnerabilities.
  • ✓To find specific types of devices, like cameras or industrial control systems.

Example of what to ask your AI

“Find all web servers from 'Example Inc.' running on non-standard ports.”

Want more? Open the sections below.

How to use

The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.

Skill link

https://github.com/sickn33/agentic-awesome-skills/blob/main/plugins/agentic-awesome-skills-claude/skills/shodan-reconnaissance/SKILL.md

Ready-to-paste message

Use this skill to help me: https://github.com/sickn33/agentic-awesome-skills/blob/main/plugins/agentic-awesome-skills-claude/skills/shodan-reconnaissance/SKILL.md Read the SKILL.md file at that link and follow its instructions for my task.
How it works

The tool sends queries to Shodan, which is a search engine for connected devices. Shodan returns information about devices that match your search, such as IP address, open ports, and software in use.

Installation

Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.

In the terminal (Claude Code, Codex, Cursor), in your project folder:

npx skills add sickn33/agentic-awesome-skills --skill shodan-reconnaissance

Or download just the file:

curl -L https://raw.githubusercontent.com/sickn33/agentic-awesome-skills/main/plugins/agentic-awesome-skills-claude/skills/shodan-reconnaissance/SKILL.md -o SKILL.md
Technical content (original SKILL.md)

Original text by the author, straight from GitHub.

⚠️ AUTHORIZED USE ONLY This skill is for educational purposes or authorized security assessments only. You must have explicit, written permission from the system owner before using this tool. Misuse of this tool is illegal and strictly prohibited.

Mandatory confirmation gate Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:

  1. Ask the user to state the exact target URL, IP, account, or resource.
  2. Ask the user to confirm written authorization and the permitted scope.
  3. Show the exact command(s) and explain their expected effect.
  4. Wait for explicit confirmation in the current conversation.

Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.

Shodan Reconnaissance and Pentesting

Detailed Guide

Read the detailed guide before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely.

Constraints and Limitations

Operational Boundaries

  • Rate limited to 1 request per second
  • Scan results not immediate (asynchronous)
  • Cannot re-scan same IP within 24 hours (non-Enterprise)
  • Free accounts have limited credits
  • Some data requires paid subscription

Data Freshness

  • Shodan crawls continuously but data may be days/weeks old
  • On-demand scans provide current data but cost credits
  • Historical data available with paid plans

Legal Requirements

  • Only perform reconnaissance on authorized targets
  • Passive reconnaissance generally legal but verify jurisdiction
  • Active scanning (scan submit) requires authorization
  • Document all reconnaissance activities

Examples

Example 1: Organization Reconnaissance

# Find all hosts belonging to target organization
shodan search 'org:"Target Company"'

# Get statistics on their infrastructure
shodan stats --facets port,product,country 'org:"Target Company"'

# Download detailed data
shodan download target_data.json.gz 'org:"Target Company"'

# Parse for specific info
shodan parse --fields ip_str,port,product target_data.json.gz

Example 2: Vulnerable Service Discovery

# Find hosts vulnerable to BlueKeep (RDP CVE)
shodan search 'vuln:CVE-2019-0708 country:US'

# Find exposed Elasticsearch with no auth
shodan search 'product:elastic port:9200 -authentication'

# Find Log4j vulnerable systems
shodan search 'vuln:CVE-2021-44228'

Example 3: IoT Device Discovery

# Find exposed webcams
shodan search 'webcam has_screenshot:true country:US'

# Find industrial control systems
shodan search 'port:502 product:modbus'

# Find exposed printers
shodan search '"HP-ChaiSOE" port:80'

# Find smart home devices
shodan search 'product:nest'

Example 4: SSL/TLS Certificate Analysis

# Find hosts with specific SSL cert
shodan search 'ssl.cert.subject.cn:*.example.com'

# Find expired certificates
shodan search 'ssl.cert.expired:true org:"Company"'

# Find self-signed certificates
shodan search 'ssl.cert.issuer.cn:self-signed'

Example 5: Python Automation Script

#!/usr/bin/env python3
import shodan
import json
import os

API_KEY = os.environ["SHODAN_API_KEY"]
api = shodan.Shodan(API_KEY)

def recon_organization(org_name):
    """Perform reconnaissance on an organization"""
    try:
        # Search for organization
        query = f'org:"{org_name}"'
        results = api.search(query)
        
        print(f"[*] Found {results['total']} hosts for {org_name}")
        
        # Collect unique IPs and ports
        hosts = {}
        for result in results['matches']:
            ip = result['ip_str']
            port = result['port']
            product = result.get('product', 'unknown')
            
            if ip not in hosts:
                hosts[ip] = []
            hosts[ip].append({'port': port, 'product': product})
        
        # Output findings
        for ip, services in hosts.items():
            print(f"\n[+] {ip}")
            for svc in services:
                print(f"    - {svc['port']}/tcp ({svc['product']})")
        
        return hosts
        
    except shodan.APIError as e:
        print(f"Error: {e}")
        return None

if __name__ == '__main__':

…
FAQ

Do I need permission to use this tool?

Yes, you can only use this tool for educational purposes or authorized security assessments. You must have written permission from the system owner before using it.

Can I use it on any website?

No, you can only search authorized targets. Passive reconnaissance is generally legal, but active scanning requires explicit authorization.

Is the information real-time?

No, Shodan's data can be days or weeks old. On-demand scans provide more current data but may cost credits or require a paid account.

Details

Original description by the author

Provide systematic methodologies for leveraging Shodan as a reconnaissance tool during penetration testing engagements.

repo: sickn33/agentic-awesome-skills

Popularity

GitHub stars
48k
Ranking position
#4162
License
MIT
Updated
10/15/2026

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