Socks Proxy Scanner is an application that allows you to find SOCKS proxy servers. It can scan over ten thousand IP addresses per second. It's actually a pretty fast scanner.
The program allows you to save the list in a text file.
This program does not work with direct PPP / PPTP / L2TP connections (Modem, ADSL, WiFi, VPN). You need to install the router and configure it for PPP/PPPoE/PPTP/L2TP connection, then connect the computer to the computer by network cable. If the program doesn't work or is slow, disable all firewalls, antivirus and ndis filters.