Passivehunter uses https://dns.bufferover.run for enumerating subdomains , This project uses the The Rapid7 Project Sonar datasets . dns.bufferover.run uses DNSGrep for quickly searching the the large data sets , Passivehunter enumerates the subdomains using query https://dns.bufferover.run/dns?q=<hostname>. It uses some regex magic to filter out the subdomains from the raw json output , then all the alive subdomains are filtered. It shows the status code of the alive subdomains. It is fast as it uses asynchronous requests instead of traditional synchronous requests.
I created this for my personal use , as enumerating the subdomains and filtering out the alive subdomains among hundreds of domains is a tedious task and ofcourse not a programmer way of doing things , Passivehunter automates all this , from filtering out the domains from raw json output to removing all the dead domains , It helped me a lot in finding a lot of potential hidden assets of the BB companies (And yes a lot of $$$$ bounties too) .
It works on anything that has Python installed.
> mkdir Passive-hunter
> cd Passive-hunter
> git clone https://github.com/devanshbatham/Passivehunter
> sudo apt install python3.7 python3-venv python3.7-venv
> python3.7 -m venv py37-venv
> . py37-venv/bin/activate
> cd Passivehunter
> pip3 install -r requirements.txt
> python passivehunter.py domainname.tld
When a scan is successfully completed , 3 files are created
1 - domainname.txt : contains all domains dead + alive
2 - domainname-200.txt : contains domains with 200 status
3 - domainname-other.txt : contains domains with status other than 200.
python passivehunter.py hackerone.com
Huge shoutout to erbbysam <3 .
You can read about DNSGREP here : https://blog.erbbysam.com/index.php/2019/02/09/dnsgrep/
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