I have noticed several(and am a member of a few) sites which offer
proxies on "non-standard" ports...These proxies run on a different
port for everything..socks,http,https,ftp etc everything runs on
randomized ports(no there is no pattern).
My question is how do the webmasters find these proxies in the two
months that i have been a member hundreds of thousands of proxies have
been posted and they are updated once in 10 minutes and once a proxy
is removed it is almost never reposted.
How do they do it?
Scanning each ip on every single port is basically impossible so how
do they find these proxies?
What tools do they use?
Thank you.

Can I still answer this question ?