docker run -it --rm -v <input_dir>:/input secsi/puredns

Description

puredns is a fast domain resolver and subdomain bruteforcing tool that can accurately filter out wildcard subdomains and DNS poisoned entries.

It uses massdns, a powerful stub DNS resolver, to perform bulk lookups. With the proper bandwidth and a good list of public resolvers, it can resolve millions of queries in just a few minutes. Unfortunately, the results from massdns are only as good as the answers provided by the public resolvers. The results are often polluted by wrong DNS answers and false positives from wildcard subdomains.

puredns solves this with its wildcard detection algorithm. It can filter out wildcards based on the DNS answers obtained from a set of trusted resolvers. It also attempts to work around DNS poisoning by validating the answers obtained using those trusted resolvers.

You should download resolvers.txt and <subdomains_file> in the host folder to use puredns. See the documentation for more details.