SubOver alternatives

Altdns is a security tool to discover subdomains. It generates permutations, alterations, and mutations of subdomains. The generated names can also be tested by performing DNS lookups. An enumeration tool like Altdns is useful during penetrating testing assignments.

SubFinder is a tool to scan domains and discover subdomains. This may be useful during the reconnaissance phase of penetration testing where information is collected. Some subdomains may reveal sensitive data or point to interesting targets such as a backup location.

Sublist3r helps penetration testers and bug hunters collect and gather subdomains for the domain they are targeting.

Domain is a Python script written by Jason Haddix to combine the tools Recon-ng and altdns. It allows to use the two tool one multiple domains within the same session.

This tool can be called a true 'inspector tool' as it helps to discover many types of data.

• Website information
• Domain and subdomain information
• Mail server information and email
• Phone details
• IP addresses
• Detection of used CMS

Domain Analyzer is an information gathering tool and comes in handy for reconnaissance. This can be useful for doing penetration testing or evaluating what information is publically available about your own domains. Some pieces of information that can be discovered include DNS servers, IP addresses, mail servers, SPF information, open ports, and more.

OSINT-SPY is a modular tool to query information on different subjects like an IP address, domain, email address, or even Bitcoin address. This tool can be valuable during the reconnaissance phase of a penetration test. It can be used also for defenses purpose, like learning what information is publically available about your organization and its assets.

Tools like web-hunter help with information gathering. This can be useful for penetration testing or when doing a self-assessment on your organization.

RTA is helpful to automate scanning public resources of a company. As the project name implies, this may be used during red teaming, like a penetration test. That obviously does not limit its use, as it is similarly useful by the blue team.

With its integration with Nessus and other tools, RTA is more of a toolkit. This can be seen in its functionality, like subdomain enumeration and information gathering capabilities.