Simple tools to handle string and generate subdomain permutations
go install github.com/j3ssie/str-replace@latest
# Build the wordlist by splitting subdomains as '.' string
cat list-of-subdomain.txt | str-replace -d '.' -n
# Build permutation subdomains from the wordlist from the existing subdomains
# This will replace every part of the subdomain except the tld with the wordlist provided
cat list-of-subdomain.txt | str-replace -W wordlists.txt -tld example.com
This project was part of Osmedeus Engine. Check out how it was integrated at @OsmedeusEngine