This is an nmap nse script to query the Shodan API and passively get information about hosts.

Simple place the shodan-hq.nse script into your nmap scripts folder. e.g:

cp shodan-hq.nse /usr/local/share/nmap/scripts/

Invoke the script like so:

nmap --script shodan-hq.nse <target> --script-args 'apikey=<yourShodanAPIKey'

You can set your Shodan API key in the shodan-hq.nse file itself to save you having to type it in every time:

-- Set your Shodan API key here to avoid typing it in every time:
local apiKey = ""

nmap will still scan the target host normally. If you only want to look up the target in Shodan you need to include the -sn -Pn -n flags. e.g:

nmap --script shodan-hq.nse -sn -Pn -n <target>

You could instead specify a single target with the target script argument. e.g:

nmap --script shodan-hq.nse --script-args 'apikey=<yourShodanAPIKey>,target=<hackme>'

The results can be written to file with the outfile script argument. e.g:

nmap --script shodan-hq.nse -sn -Pn -n <target> -sn -Pn -n --script-args 'outfile=potato.csv'

Here we do a passive scan of a whole /24 range, giving -sV type output in under 20 seconds:

nmap --script-help shodan-hq.nse

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