Keyloggers — Silent Password Thieves
A keylogger records every single keystroke you type — passwords, messages, credit card numbers. Everything.
Types of Keyloggers
Software Keyloggers
- API-based: Hooks keyboard events at OS level
- Form Grabbers: Captures data submitted in web forms
- Memory-Injection: Injects into browser process
- Kernel-based: Operates at driver level (hardest to detect)
Hardware Keyloggers
- USB Keylogger: ₹500-2000, sits between keyboard and computer
- WiFi Keylogger: Sends captured data wirelessly
- Acoustic: Records keyboard sounds and decodes keystrokes
How Keyloggers Reach You
- Email attachments
- Drive-by downloads
- Bundled with pirated software
- Physical installation (hardware)
- Infected USB drives
Python Keylogger Example
from pynput import keyboard
log = ""
def on_press(key):
global log
log += str(key)
if len(log) > 100:
# Send to attacker (this is the dangerous part)
log = ""
with keyboard.Listener(on_press=on_press) as listener:
listener.join()
Detection & Removal
- 🔍 Check Task Manager for unknown processes
- 🔍 Inspect startup programs
- 🔍 Use anti-keylogger software (Zemana, SpyShelter)
- 🔍 Check USB ports for physical devices
- 🔍 Use on-screen keyboard for sensitive input
🔥 Learn malware analysis at ONLY4YOU →