Subhunter - A Fast Subdomain Takeover Tool

Subdomain takeover is a common vulnerability that allows an attacker to gain control over a subdomain of a target domain and redirect users intended for an organization's domain to a website that performs malicious activities, such as phishing campaigns, stealing user cookies, etc. It occurs when an attacker gains control over a subdomain of a target domain. Typically, this happens when the subdomain has a CNAME in the DNS, but no host is providing content for it. Subhunter takes a given list of Subdomains" title="Subdomains">subdomains and scans them to check this vulnerability.

Features:

Auto update
Uses random user agents
Built in Go
Uses a fork of fingerprint data from well known sources (can-i-take-over-xyz)

Installation:

Option 1:

Download from releases

Option 2:

Build from source:

$ git clone https://github.com/Nemesis0U/Subhunter.git
$ go build subhunter.go

Usage:

Options:

Usage of subhunter:
  -l string
        File including a list of hosts to scan
  -o string
        File to save results
  -t int
        Number of threads for scanning (default 50)
  -timeout int
        Timeout in seconds (default 20)

Demo (Added fake fingerprint for POC):

./Subhunter -l subdomains.txt -o test.txt  ____            _       _                       _
 / ___|   _   _  | |__   | |__    _   _   _ __   | |_    ___   _ __
 \___ \  | | | | | '_ \  | '_ \  | | | | | '_ \  | __|  / _ \ | '__|
  ___) | | |_| | | |_) | | | | | | |_| | | | | | | |_  |  __/ | |
 |____/   \__,_| |_.__/  |_| |_|  \__,_| |_| |_|  \__|  \___| |_|
A fast subdomain takeover tool
Created by Nemesis
Loaded 88 fingerprints for current scan
-----------------------------------------------------------------------------
[+] Nothing found at www.ubereats.com: Not Vulnerable
[+] Nothing found at testauth.ubereats.com: Not Vulnerable
[+] Nothing found at apple-maps-app-clip.ubereats.com: Not Vulnerable
[+] Nothing found at about.ubereats.com: Not Vulnerable
[+] Nothing found at beta.ubereats.com: Not Vulnerable
[+] Nothing found at ewp.ubereats.com: Not Vulnerable
[+] Nothi   ng found at edgetest.ubereats.com: Not Vulnerable
[+] Nothing found at guest.ubereats.com: Not Vulnerable
[+] Google Cloud: Possible takeover found at testauth.ubereats.com: Vulnerable
[+] Nothing found at info.ubereats.com: Not Vulnerable
[+] Nothing found at learn.ubereats.com: Not Vulnerable
[+] Nothing found at merchants.ubereats.com: Not Vulnerable
[+] Nothing found at guest-beta.ubereats.com: Not Vulnerable
[+] Nothing found at merchant-help.ubereats.com: Not Vulnerable
[+] Nothing found at merchants-beta.ubereats.com: Not Vulnerable
[+] Nothing found at merchants-staging.ubereats.com: Not Vulnerable
[+] Nothing found at messages.ubereats.com: Not Vulnerable
[+] Nothing found at order.ubereats.com: Not Vulnerable
[+] Nothing found at restaurants.ubereats.com: Not Vulnerable
[+] Nothing found at payments.ubereats.com: Not Vulnerable
[+] Nothing found at static.ubereats.com: Not Vulnerable
Subhunter exiting...
   Results written to test.txt