What is Sublist3r?
Sublist3r is an open source subdomain enumeration and discovery tool for penetration testers. It is used to identify subdomains of a target domain that an attacker could use to find network vulnerabilities. Sublist3r has several useful features:
- It collects subdomains from many different sources including search engines, DNS dumpsters, certificates, etc. to generate a comprehensive subdomain list.
- It can perform brute force subdomain guessing using a dictionary file.
- It has options to enumerate subdomains recursively and find subdomain takeovers.
- It works well with large target lists and can customize the speed and intensity of queries.
- The output can be saved to a text file for easy analysis and additional scanning.
Overall, Sublist3r is a popular network reconnaissance tool among ethical hackers. By mapping out all live subdomains, pen testers can better discover potential attack surfaces such as admin panels, testing portals, or forgotten staging servers. The comprehensive subdomain list can then be used for targeted vulnerability scans and exploitation by offensive security teams.