Shodan

https://gist.github.com/yehgdotnet/b9dfc618108d2f05845c4d8e28c5fc6a

https://www.shodan.io/

https://github.com/GoVanguard/pyShodan

https://github.com/s0md3v/smap/

Similar to Shodan https://app.netlas.io/responses/

https://www.shodan.io/search?query=product%3A%22Cobalt+Strike+Beacon%22

https://www.shodan.io/search?query=ssl%3A%22MetasploitSelfSignedCA%22

https://www.shodan.io/search?query=ssl%3A%E2%80%9DCovenant%E2%80%9D%20http.component%3A%E2%80%9DBlazor%E2%80%9D

https://www.shodan.io/search?query=ssl%3AMythic+port%3A7443

https://cheatography.com/sir-slammington/cheat-sheets/shodan/

https://www.sans.org/blog/getting-the-most-out-of-shodan-searches/

https://github.com/jakejarvis/awesome-shodan-queries

https://github.com/vesche/scanless (scan ports online, anonymously)

https://securitytrails.com/blog/top-shodan-dorks