Knock Subdomain Scan v5.2.0

Knockpy is a python3 tool designed to quickly enumerate subdomains on a target domain through dictionary attack.

Very simply

python3 knockpy.py domain.com

Install

You need python3, pip3, git.

git clone https://github.com/guelfoweb/knock.git
cd knock
pip3 install -r requirements.txt
python3 knockpy.py <DOMAIN>

Knockpy -h

usage: knockpy [-h] [-v] [--no-local] [--no-remote] [--no-http] [--no-http-code CODE [CODE ...]] 
               [-w WORDLIST] [-o FOLDER] [-t SEC] [-th NUM] domain

--------------------------------------------------------------------------------
* SCAN
full scan:    knockpy domain.com
ignore code:  knockpy domain.com --no-http-code 404 500 530
threads:      knockpy domain.com -th 50
timeout:      knockpy domain.com -t 2

* REPORT
show report:  knockpy --report knockpy_report/domain.com_yyyy_mm_dd_hh_mm_ss.json
plot report:  knockpy --plot knockpy_report/domain.com_yyyy_mm_dd_hh_mm_ss.json
csv report:   knockpy --csv knockpy_report/domain.com_yyyy_mm_dd_hh_mm_ss.json

* SETTINGS
set apikey:   knockpy --set apikey-virustotal=APIKEY
set timeout:  knockpy --set timeout=sec
set threads:  knockpy --set threads=num
--------------------------------------------------------------------------------

positional arguments:
  domain                target to scan

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  --no-local            local wordlist ignore
  --no-remote           remote wordlist ignore
  --no-http             http requests ignore
                        
  --no-http-code CODE [CODE ...]
                        http code list to ignore
                        
  -w WORDLIST           wordlist file to import
  -o FOLDER             report folder to store json results
  -t SEC                timeout in seconds
  -th NUM               threads num

Usage

Full scan

$ knockpy domain.com

Attack type: dns + http(s) requests
Knockpy uses internal file wordlist.txt. If you want to use an external dictionary you can use the -w option and specify the path to your dictionary text file.
Knockpy also tries to get subdomains from google, duckduckgo, and virustotal. The results will be added to the general dictionary.
It is highly recommended to use a virustotal API_KEY which you can get for free. The best results always come from virustotal.
But, if you only want to work with local word lists, without search engines queries, you can add --no-remote to bypass remote recon.
If you want to ignore http(s) responses with specific code, you can use the --no-http-code option followed by the code list 404 500 530

Fast scan

$ knockpy domain.com --no-http

Attack type: dns
DNS requests only, no http(s) requests will be made. This way the response will be much faster and you will get the IP address and the Subdomain.
The subdomain will be cyan in color if it is an alias and in that case the real host name will also be provided.

Set threads

$ knockpy domain.com -th 50

default threads = 30

Set timeout

$ knockpy domain.com -t 5

default timeout = 3 seconds.

Virustotal APIKEY

$ knockpy --set apikey-virustotal=APIKEY

Get virustotal APIKEY for free.

Show report

$ knockpy --report knockpy_report/domain.com_yyyy_mm_dd_hh_mm_ss.json

Show the report in the terminal.

Csv report

$ knockpy --csv knockpy_report/domain.com_yyyy_mm_dd_hh_mm_ss.json

Save report as csv file.

Plot report

$ knockpy --plot knockpy_report/domain.com_yyyy_mm_dd_hh_mm_ss.json

Plot relationships.

Output folder

$ knockpy domain.com -o /path/to/new/folder

All scans are saved in the default folder knockpy_report that you can edit in the config.json file.
Alternatively, you can use the -o option to define the new folder path.

Report

At each scan the report will be automatically saved in json format inside the file with the name domain.com_yyyy_mm_dd_hh_mm_ss.json.
If you don't like autosave you can disable it from the config.json file by changing the value to "save": false.
To read the report in a human format you can do as described in Show report.

Report example domain.com_yyyy_mm_dd_hh_mm_ss.json:

{
    "sub-1.domain.com": {
        "domain": "host.domain.ext",
        "alias": ["sub-1.domain.com"],
        "ipaddr": [
            "123.123.123.123"
        ],
        "code": 200,
        "server": "Microsoft-IIS/8.5"
    },
    ...................................
               -- cut --
    ...................................
    "sub-n.domain.com"{
        "domain": "",
        "alias": [],
        "ipaddr": [
            "123.123.123.124"
        ],
        "code": 500,
        "server": "nginx/1.15.6 "
    },
    "_meta": {
        "name": "knockpy",
        "version": "5.1.0",
        "time_start": 1616353591.2510355,
        "time_end": 1616353930.6632543,
        "domain": "domain.com",
        "wordlist": 2120
    }
}

_meta is a reserved key that contains the basic information of the scan.

License

Knockpy is currently under development by @guelfoweb and it's released under the GPL 3 license.

MarcoAGP/knock