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A brief introduction to ZoomEye and similar search engines, and how to perform subdomain collection.

#cyberspacemapping #cybersecuritysearchengines #subdomain

I. ZoomEye

1. Introduction

ZoomEye is a cyberspace search engine specializing in the discovery and analysis of devices and services connected to the internet. Its primary objective is to provide insights into online devices, security vulnerabilities, and network infrastructure, assisting users in penetration testing, cybersecurity analysis, and asset management.

2. Official Website

3. Key Features

  • Device Search: Users can search for specific devices using criteria such as IP address, service type, and response content.
  • Vulnerability Detection: ZoomEye surfaces known security vulnerabilities, aiding users in identifying potential security risks.
  • Real-time Data Updates: The platform regularly scans the internet and updates its database to ensure data timeliness and accuracy.

II. Similar Search Engines

1. Shodan

  • Description: The first and most well-known cyberspace search engine, focusing on discovering internet-connected devices (IoT, servers, industrial control systems, etc.).
  • Features:
    • Supports filtering by IP, port, service, operating system, and geographic location
    • Provides API access and real-time data monitoring
  • Website: https://www.shodan.io/

2. Censys

  • Description: A platform specializing in internet asset discovery and security assessment, offering detailed protocol and certificate data analysis.
  • Features:
    • Tracks TLS/SSL certificates
    • Identifies exposed services
    • Supports large-scale network reconnaissance
  • Website: https://censys.io/

3. BinaryEdge

  • Description: A global cybersecurity search engine that focuses on threat intelligence and attack surface monitoring.
  • Features:
    • Provides data on exposed services, vulnerabilities, and sensitive data leaks
    • Powerful API integration
  • Website: https://www.binaryedge.io/

4. Netlas

  • Description: A search engine for internet-connected devices and services, offering extensive filtering and data export capabilities.
  • Features:
    • Supports real-time scanning
    • Historical data querying
    • Customized alert notifications
  • Website: https://www.netlas.io/

5. Greynoise

  • Description: A specialized platform focused on analyzing internet background noise and filtering out benign scanning activity.
  • Features:
    • Helps security teams distinguish between targeted threats and mass scanning events
    • Reduces alert fatigue
  • Website: https://www.greynoise.io/

III. Subdomain Enumeration

1. Introduction

Subdomain enumeration is a critical component of cybersecurity reconnaissance and intelligence gathering, particularly in penetration testing and vulnerability assessment workflows.

2. Methods for Subdomain Enumeration

  • Search Engine Syntax Queries:
    Utilize cyberspace search engines (e.g., ZoomEye) with advanced syntax (e.g., site:example.com) to filter and extract subdomain data from search results.

  • Subdomain Query Websites:
    Employ WHOIS lookup tools to retrieve domain registration details, which may reveal associated subdomains through DNS records or administrative metadata.

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