A comprehensive list of information gathering tools.

Wasifa nuren Anjum
2 min readSep 26, 2023

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Certainly! Information gathering is a critical phase in cybersecurity and ethical hacking, and there are various tools available to assist in this process. Here’s a comprehensive list of information gathering tools, categorized based on their functions:

Passive Information Gathering:

1. WHOIS Lookup:
— [WHOIS](https://who.is/) — Provides domain registration information.

2. DNS Information:
— [Nslookup](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/nslookup) — Command-line tool for querying DNS records.
— [DNSdumpster](https://dnsdumpster.com/) — Provides DNS-related information and subdomain enumeration.

3. Search Engines:
— [Google](https://www.google.com/) — Use advanced operators like `site:` to search specific domains.
— [Bing](https://www.bing.com/) — Similar to Google but may yield different results.
— [Shodan](https://www.shodan.io/) — A search engine for finding Internet-connected devices.

4. Web Archive:
— [Wayback Machine](https://archive.org/web/) — Provides historical snapshots of websites.

5. Social Media:
— Various social media platforms can provide insights into an organization’s online presence.

Active Information Gathering:

6. Port Scanning:
— [Nmap](https://nmap.org/) — A versatile and powerful open-source port scanner.
— [Masscan](https://github.com/robertdavidgraham/masscan) — Mass IP port scanner.

7. Vulnerability Scanning:
— [Nessus](https://www.tenable.com/products/nessus) — A popular vulnerability scanner for network assessment.
— [OpenVAS](https://www.openvas.org/) — An open-source vulnerability scanner.

8. Web Application Scanning:
— [Burp Suite](https://portswigger.net/burp) — A comprehensive web application testing tool.
— [OWASP ZAP](https://www.zaproxy.org/) — An open-source web application scanner.

9. Subdomain Enumeration:
— [Sublist3r](https://github.com/aboul3la/Sublist3r) — Tool for subdomain enumeration.
— [Amass](https://github.com/OWASP/Amass) — An open-source tool for subdomain enumeration and network mapping.

10. Email Gathering:
— [theHarvester](https://github.com/laramies/theHarvester) — Gathers email addresses associated with a domain.

11. Network Mapping:
— [Netdiscover](https://github.com/netdiscover/netdiscover) — An active/passive network address scanner.

12. Spidering and Web Crawling:
— [Wget](https://www.gnu.org/software/wget/) — Command-line tool for downloading web content.
— [HTTrack](https://www.httrack.com/) — A website copier and offline browser.

13. Information Gathering Frameworks:
— [Recon-ng](https://github.com/lanmaster53/recon-ng) — A full-featured reconnaissance framework.
— [Maltego](https://www.maltego.com/) — A visual link analysis tool for gathering information.

These tools are just a starting point for information gathering. Depending on your specific goals and the complexity of your assessment, you may need to use a combination of these tools to gather comprehensive data about a target. Always ensure that you use these tools responsibly and within legal and ethical boundaries, obtaining proper authorization when necessary.

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