
Google Search Dork: inurl:portscan.php "from Port"|"Port Range"
This is general search for online port scanners which accept any IP. It does not find a specific scanner script, but searches for a pattern which will match some more scanners.
inurl:portscan.php "from Port"|"Port Range" Google Dork Source : inurl:portscan.php "from Port"|"Port Range"