yaowenqiang / amass

In-depth Attack Surface Mapping and Asset Discovery

OWASP Amass

The OWASP Amass Project performs network mapping of attack surfaces and external asset discovery using open source information gathering and active reconnaissance techniques.

Information Gathering Techniques Used:

Technique	Data Sources
DNS	Brute forcing, Reverse DNS sweeping, NSEC zone walking, Zone transfers, FQDN alterations/permutations, FQDN Similarity-based Guessing
Scraping	AbuseIPDB, Ask, AskDNS, Baidu, Bing, DNSDumpster, DuckDuckGo, Gists, HackerOne, HyperStat, IPv4Info, PKey, RapidDNS, Riddler, Searchcode, Searx, SiteDossier, SpyOnWeb, Yahoo
Certificates	Active pulls (optional), Censys, CertSpotter, Crtsh, Digitorus, FacebookCT, GoogleCT
APIs	360PassiveDNS, ARIN, Ahrefs, AlienVault, AnubisDB, BinaryEdge, BGPView, BufferOver, BuiltWith, C99, Chaos, CIRCL, Cloudflare, CommonCrawl, DNSDB, DNSlytics, Detectify, FOFA, FullHunt, GitHub, GitLab, Greynoise, HackerTarget, Hunter, IntelX, IPdata, IPinfo, Maltiverse, Mnemonic, N45HT, NetworksDB, ONYPHE, PassiveTotal, PentestTools, Quake, RADb, ReconDev, Robtex, SecurityTrails, ShadowServer, Shodan, SonarSearch, Spamhaus, Spyse, Sublist3rAPI, TeamCymru, ThreatBook, ThreatCrowd, ThreatMiner, Twitter, Umbrella, URLScan, VirusTotal, WhoisXMLAPI, ZETAlytics, ZoomEye
Web Archives	ArchiveIt, Arquivo, HAW, UKWebArchive, Wayback

---

Installation

You can find some additional installation variations in the Installation Guide.

Prebuilt Packages

1. Simply unzip the package
2. Put the precompiled binary into your path
3. Start using OWASP Amass!

Homebrew

brew tap caffix/amass
brew install amass

Snapcraft

sudo snap install amass

Docker Container

1. Install Docker
2. Pull the Docker image by running docker pull caffix/amass
3. Run docker run -v OUTPUT_DIR_PATH:/.config/amass/ caffix/amass enum -share -d example.com

The volume argument allows the Amass graph database to persist between executions and output files to be accessed on the host system. The first field (left of the colon) of the volume option is the amass output directory that is external to Docker, while the second field is the path, internal to Docker, where amass will write the output files.

From Sources

1. Install Go and setup your Go workspace
2. Download OWASP Amass by running go get -v github.com/OWASP/Amass/v3/...
3. At this point, the binary should be in $GOPATH/bin

Documentation

Use the Installation Guide to get started.

Go to the User's Guide for additional information.

See the Tutorial for example usage.

See the Amass Scripting Engine Manual for greater control over your enumeration process.

Troubleshooting

If you need help with installation and/or usage of the tool, please join our Discord server where community members can best help you.

🛑 Please avoid opening GitHub issues for support requests or questions!

Contributing

We are always happy to get new contributors on board! Please check CONTRIBUTING.md to learn how to contribute to our codebase, and join our Discord Server to discuss current project goals.

For a list of all contributors to the OWASP Amass Project please visit our HALL_OF_FAME.md.

External Projects Helping Amass Users

• Patrik's Amass data source scripts
• Paradigm
• amass-to-csv

Testimonials

Accenture

"Accenture’s adversary simulation team has used Amass as our primary tool suite on a variety of external enumeration projects and attack surface assessments for clients. It’s been an absolutely invaluable basis for infrastructure enumeration, and we’re really grateful for all the hard work that’s gone into making and maintaining it – it’s made our job much easier!"

- Max Deighton, Accenture Cyber Defense Manager

References

Did you write a blog post, magazine article or do a podcast about OWASP Amass? Or maybe you held or joined a conference talk or meetup session, a hacking workshop or public training where this project was mentioned?

Add it to our ever-growing list of REFERENCES.md by forking and opening a Pull Request!

Top Mentions

• WhoisXML API | OWASP Amass and WhoisXML API Are Now Integration Partners
• Intigriti | Hacker tools: Amass – Hunting for Subdomains
• Hakluke | Guide to Amass — How to Use Amass More Effectively for Bug Bounties
• SecurityTrails | OWASP Amass: A Solid Information Gathering Tool
• TrustedSec | Upgrade Your Workflow, Part 1: Building OSINT Checklists
• SANS ISC | Offensive Tools Are For Blue Teams Too
• Daniel Miessler | amass — Automated Attack Surface Mapping
• Dionach | How to Use OWASP Amass: An Extensive Tutorial
• Jason Haddix | LevelUp 0x02 - The Bug Hunters Methodology v3(ish)
• Hacker Toolbelt | OWASP Amass OSINT Reconnaissance
• ToolWar | Extreme Subdomain Enumeration/Scanning on Windows : OWASP Amass
• Ghost Lulz | YouTube - Bug Bounty Tips: Amass Recon Tool
• Capt. Meelo | Asset Enumeration: Expanding a Target's Attack Surface
• Noobhax | My Recon Process — DNS Enumeration

Licensing

This program is free software: you can redistribute it and/or modify it under the terms of the Apache license. OWASP Amass and any contributions are Copyright © by Jeff Foley 2017-2021. Some subcomponents have separate licenses.