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API hooking revealed

, 2 Dec 2002 CPOL 1.9M 55.4K 1.2K
The article demonstrates how to build a user mode Win32 API spying system
// MainFrm.h
// SUBSYSTEM:   Hook system
// MODULE:      Hook server
// DESCRIPTION: Interface of the CMainFrame class
// AUTHOR:		Ivo Ivanov (
// DATE:		2001 December v1.00
#if !defined(_MAINFRM_H_)
#define _MAINFRM_H_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "TrayIcon.h"
#include "ApplicationScope.h"

// class CMainFrame

class CMainFrame : public CFrameWnd

// Attributes

// Operations

// Overrides
	// ClassWizard generated virtual function overrides

// Implementation
	virtual ~CMainFrame();

// Generated message map functions
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg void OnClose();
	afx_msg void OnAppExit();
	afx_msg LRESULT OnTrayNotification(WPARAM wp, LPARAM lp);

// Custom declarations
	// Fired when a process loads hooktool dll
	afx_msg LRESULT OnDllLoaded(WPARAM, LPARAM);
	// Fired when a process unloads hooktool dll
	afx_msg LRESULT OnDllUnLoaded(WPARAM, LPARAM);
	CTrayIcon	m_TrayIcon;		// my tray icon
	BOOL		m_bShutdown;	// Determines whether the app terminates
	// Hook related attributes
	CApplicationScope& m_ApplicationScope;


// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(_MAINFRM_H_)

//----------------------------End of the file -------------------------------

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About the Author

Ivo Ivanov
Chief Technology Officer Vinsula
Australia Australia
I specialise in Malware Analysis, Application Security, Windows Kernel, x86/x64, and Reverse Engineering.
My blog:

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