The OWASP Amass Project performs network mapping of attack surfaces and external asset discovery using open source information gathering and active reconnaissance techniques.
Use this tool only on systems you own or have explicit permission to test.
The OWASP Amass Project has developed a framework to help information security professionals perform network mapping of attack surfaces and external asset discovery using open source intelligence gathering and reconnaissance techniques.
The framework includes a collection engine for asset discovery, an asset database for storage of findings, and the Open Asset Model, used by various tooling to help understand attack surfaces.