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:

• DNS: Basic enumeration, Brute forcing (optional), Reverse DNS sweeping, Subdomain name alterations/permutations, Zone transfers (optional)
• Scraping: Ask, Baidu, Bing, DNSDumpster, DNSTable, Dogpile, Exalead, Google, HackerOne, IPv4Info, Netcraft, PTRArchive, Riddler, SiteDossier, ViewDNS, Yahoo
• Certificates: Active pulls (optional), Censys, CertSpotter, Crtsh, Entrust, GoogleCT
• APIs: AlienVault, BinaryEdge, BufferOver, CIRCL, CommonCrawl, DNSDB, GitHub, HackerTarget, IPToASN, Mnemonic, NetworksDB, PassiveTotal, Pastebin, RADb, Robtex, SecurityTrails, ShadowServer, Shodan, Spyse (CertDB & FindSubdomains), Sublist3rAPI, TeamCymru, ThreatCrowd, Twitter, Umbrella, URLScan, VirusTotal, WhoisXML
• Web Archives: ArchiveIt, ArchiveToday, Arquivo, LoCArchive, OpenUKArchive, UKGovArchive, Wayback

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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 --version

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.

The wordlists maintained in the Amass git repository are available in /examples/wordlists/ within the docker container. For example, to use all.txt:

docker run -v OUTPUT_DIR_PATH:/.config/amass/ caffix/amass enum -brute -w /wordlists/all.txt -d example.com

From Sources

1. Install Go and setup your Go workspace
2. Add the Go Module environment variable by running export GO111MODULE=on
3. Download OWASP Amass by running go get -v -u github.com/OWASP/Amass/v3/...
4. 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.

Troubleshooting

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

The OWASP Amass core project team are:

• Jeff Foley aka caffix (Project Leader)
• Anthony Rhodes aka fork-while-fork

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

References

Did you write a blog post, magazine article or do a podcast about or mentioning 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

• 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)
• FireEye | Commando VM 2.0: Customization, Containers, and Kali, Oh My!
• Hacker Toolbelt | OWASP Amass OSINT Reconnaissance
• ToolWar | Extreme Subdomain Enumeration/Scanning on Windows : OWASP Amass
• Ghost Lulz | YouTube - Bug Bounty Tips: Amass Recon Tool
• HackbotOne | 10 Recon Tools For Bug Bounty
• 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 2017-2020.