Spiderfoot
Spiderfoot is an open-source tool used for the purpose of extracting information about a network. Spiderfoot is an automation tool that helps in automating the process of extracting intelligence about a specific target. The target might be a host name, domain name, network subnet or an IP address. It gives threat information like the malicious IPs and it gives a clear understanding about the status of an organization or a network, in response to the outside world. Spiderfoot is written in Python and for its execution, the user needs an installation of Python 2.7 in the system.