Unveiling the Depths of Windows API: A Profound Journey into Keyloggers and Shellcode Launchers
<h1>Introduction:</h1>
<p>The Windows API, the cornerstone of Windows program development, is a double-edged sword, providing developers with extensive possibilities but also exposing them to potential for abuse. In this research, we will explore the intricacies of the Windows API by analyzing the evolution of the keylogger and shellcode launcher.</p>
<h1>Part 1: Keylogger Implementation</h1>
<h2>SetWindowsHookEx Function:</h2>
<p>The <code>SetWindowsHookEx</code> method is at the heart of our keylogger. This function allows you to set up a hooked process that monitors low-level keyboard events. Let’s break it down into its component parts:</p>
<pre>
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreaded);</pre>
<ul>
<li><code>idHook</code>: Specifies the type of hook, with <code>WHKEYBOARDLL</code> indicating a low-level keyboard hook.</li>
<li><code>lpfn</code>: A reference to the hook procedure, which is specified elsewhere in the code.</li>
<li><code>hMod</code>: A pointer to the DLL that contains the hook method.</li>
<li><code>dwThreaded</code>: The thread identifier with which the hook operation is associated.</li>
</ul>
<h2>GetCurrentProcess and GetModuleHandle Functions:</h2>
<p>Using <code>kernel32.dll</code>, these functions collect information about the current process and handles of modules associated with the process. This information is important for developing the hook:</p>
<p><a href="https://medium.com/@nijithneo/unveiling-the-depths-of-windows-api-a-profound-journey-into-keyloggers-and-shellcode-launchers-32429cbe62d8"><strong>Click Here</strong></a></p>