SubdomainFinder is a tool for collecting subdomains. It increases the range of information gathering during the penetration test.

The reason for writing this tool is that my computer can't use Sublist3r, I don't want to spend time configuring the environment for it.

Also, since I don't know enough about multithreading now, I didn't add the part of the brute subdomain, I believe I will add it in later versions.

When collecting the netcraft part, refer to Sublist3r. The rest is written by myself.

Auth: Threezh1
Blog: http://www.threezh1.com/

• Python Version: 3.7

• Dependencies: pip3 install -r requirements.txt

• Channels for collecting subdomains：

  crt, dnsdumpster, threatcrowd, virustotal, natcraft, google transparencyreport, ask, baidu, bing, so, google

• Have to be aware of is:

  • Please make sure the network can access websites such as google
  • A single part may report an error, but does not affect the overall use.
  • If an error occurs, please wait a while and try again

• Problems at the current stage：

  • When the number of subdomains is very large, the program may have to wait for a long time and get stuck with a small probability.
  • Some channels will be invalid due to network factors
  • The speed of collection is not particularly fast

PS：In the windows, it is recommended to run with cmder.

• https://www.virustotal.com/

usage: SubdomainFinder.py [-h] -d DOMAIN [-o] [-html]

• Simple：

python3 SubdomainFinder.py -d mi.com

• Output to txt:

The output is a txt file, the default name is mi_com.txt

python3 SubdomainFinder.py -d mi.com -o

• Output to html:

python3 SubdomainFinder.py -d mi.com -html

Get more information about the subdomain, including the page title, ip address, website status, and output it as an html file. The default name is mi_com.html