python植入后门backdoor程序的方法？

from gevent.backdoor import BackdoorServer
server = BackdoorServer((‘127.0.0.1‘, 5001),
                        banner="Hello from gevent backdoor!",
                        locals={‘foo‘: "From defined scope!"})
server.serve_forever()

$ telnet 127.0.0.1 5001
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is ‘^]‘.
Hello from gevent backdoor!
>> print(foo)
From defined scope!