GasMasK is a versatile open-source tool designed for extensive information gathering and OSINT (Open Source Intelligence) operations.

It seamlessly integrates various functionalities to probe domains, social media, and more, using a multitude of data sources like Shodan, Censys, and DNS records.

Licensed under GPLv3, GasMasK v2.0 offers a robust framework for cybersecurity professionals and researchers.

Dive into the capabilities of GasMasK and enhance your intelligence collection efforts efficiently.


  • Python 3.x
  • validators
  • python-whois
  • dnspython
  • requests
  • shodan
  • censys
  • mmap
  • pprint

Information Gathering

  • ask
  • bing
  • crt
  • dns
  • dnsdumpster
  • dogpile
  • github
  • google
  • googleplus
  • instagram
  • linkedin
  • netcraft
  • pgp
  • reddit
  • reverse dns
  • shodan
  • twitter
  • vhosts
  • virustotal
  • whois
  • yahoo
  • yandex
  • youtube
  • spyse


sudo pip3 install -r requirements.txt


___________              .__                _________              
\__    ___/_  _  __ ____ |  |___  __ ____  /   _____/ ____   ____  
  |    |  \ \/ \/ // __ \|  |\  \/ // __ \ \_____  \_/ __ \_/ ___\ 
  |    |   \     /\  ___/|  |_\   /\  ___/ /        \  ___/\  \___ 
  |____|    \/\_/  \___  >____/\_/  \___  >_______  /\___  >\___  >
                       \/               \/        \/     \/     \/ 

GasMasK v. 2.0 - All in one Information gathering tool - OSINT
GasMasK is an open source tool licensed under GPLv3.
Written by: @maldevel, mikismaos, xvass, ndamoulianos, sbrb
Please visit for more..

usage: [-h] [-d DOMAIN] [-s NAMESERVER] [-x PROXY] [-l LIMIT]
                  [-i MODE] [-o BASENAME] [-k API-KEY] [-e SPYSE_API_KEY]
                  [-m MATCH] [-f FILTER] [--count] [-R REPORT]
                  [-B REPORT_BUCKET] [-1 CENSYS_API_ID] [-2 CENSYS_API_SECRET]
                  [-r] [-u] [-a ASN] [-c COUNTRY] [-O CERT_ORG]
                  [-I CERT_ISSUER] [-z CERT_HOST] [-S HTTP_SERVER]
                  [-t HTML_TITLE] [-b HTML_BODY] [-T TAGS] [-L LIMIT] [-D]
                  [-v] [-H]
                  [arguments [arguments ...]]

positional arguments:
  arguments             Censys query

optional arguments:
  -h, --help            show this help message and exit
  -d DOMAIN, --domain DOMAIN
                        Domain to search.
                        DNS server to use.
  -x PROXY, --proxy PROXY
                        Use a proxy server when retrieving results from search engines (eg. '-x')
  -l LIMIT, --limit LIMIT
                        Limit the number of search engine results (default: 100).
  -i MODE, --info MODE  Limit information gathering (basic,nongoogle,whois,dns,revdns,vhosts,google,bing,yahoo,ask,dogpile,yandex,linkedin,twitter,youtube,reddit,github,instagram,crt,pgp,netcraft,virustotal,dnsdump,shodan,censys,spyse).
  -o BASENAME, --output BASENAME
                        Output in the four major formats at once (markdown, txt, xml and html).
  -k API-KEY, --shodan-key API-KEY
                        API key to use with Shodan search (MODE="shodan")
  -e SPYSE_API_KEY, --spyse-key SPYSE_API_KEY
  -m MATCH, --match MATCH
                        Highlight a string within an existing query result
  -f FILTER, --filter FILTER
                        Filter the JSON keys to display for each result, use value 'help' for interesting fields
  --count               Print the count result and exit
  -R REPORT, --report REPORT
                        Stats on given field (use value 'help' for listing interesting fields)'
                        Bucket len in report mode (default: 10)
  -1 CENSYS_API_ID, --censys_api_id CENSYS_API_ID
                        Provide the authentication ID for the search engine
  -2 CENSYS_API_SECRET, --censys_api_secret CENSYS_API_SECRET
                        Provide the secret hash for the search engine
  -r, --read_api_keys   Read the API Keys stored in api_keys.txt file. (e.g. '-i censys -r')
  -u, --update_api_keys
                        Update the API Keys stored in api_keys.txt file. (e.g. '-i censys -u')
  -a ASN, --asn ASN     Filter with ASN (e.g 5408 for GR-NET AS)
  -c COUNTRY, --country COUNTRY
                        Filter with country
  -O CERT_ORG, --cert-org CERT_ORG
                        Certificate issued to organization
  -I CERT_ISSUER, --cert-issuer CERT_ISSUER
                        Certificate issued by organization
  -z CERT_HOST, --cert-host CERT_HOST
                        hostname Certificate is issued to
  -S HTTP_SERVER, --http-server HTTP_SERVER
                        Server header
  -t HTML_TITLE, --html-title HTML_TITLE
                        Filter on html page title
  -b HTML_BODY, --html-body HTML_BODY
                        Filter on html body content
  -T TAGS, --tags TAGS  Filter on specific tags. e.g: -T tag1,tag2,... (use keyword 'list' to list usual tags
  -L LIMIT, --Limit LIMIT
                        Limit to N results
  -D, --debug           Debug information
  -v, --verbose         Print raw JSON records
  -H, --html            Renders html elements in a browser

For more information click here.

Published by Tamil S

Tamil has a great interest in the fields of Cyber Security, OSINT, and CTF projects. Currently, he is deeply involved in researching and publishing various security tools with Kali Linux Tutorials, which is quite fascinating.

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