TCP_UDP封包拦截接口\TCP通信.exe



... ... ... .\UDP通信.exe



... ... ... .\安装钩子DLL.exe



...................\mydll.dll



...................\mydll.e



...................\TCP通信.e



...................\UDP通信.e



...................\安装钩子DLL.e



TCP_UDP封包拦截接口



以前玩网络游戏，很多人可能都有使用过WPE这个封包拦截软件，虽然现在WPE已时过境迁，但拦截替换网络封包的功能依然可以在某些抓包软件的身上看到。



本节我们自已也将设计一个类似于WPE那样的封包拦截替换功能的程序.该程序的封包拦截功能是在APIHOOK的基础上扩展而来的。



本节的源代码包里有两个软件，都是用易语编的. TCP通信.exe UDP通信.exe



本节要编的一个封包拦截软件，是需要用钩子EXE把一个钩子DLL文件插入目标进程中。对于拦截封包替换修改封包的功能全在DLL中实现



本节的下面的图中有些内容与源代码里有所不同，一切以源代码为准.-TCP_UDP packet interception interface \ TCP communication. Exe ................... \ UDP communication. Exe ................. the .. \ the installation hook DLL.exe ................... \ mydll.dll ................... \ mydll.e ................... \ TCP communication. e ................... \ UDP communication intercept interface install hook DLL.e TCP_UDP packet ago. e ................... \ play online games, a lot of people may have used WPE This packet blocking software, although WPE has been overtaken by events, but the interceptor to replace the function of network packets can still see the body of some packet capture software. This section will also be our own design similar WPE as program packet interception replace function. The the packet blocking feature of the program from the expansion on the basis of the APIHOOK. Source code package for this section has two software are compiled using easy language. TCP communication. Exe UDP communication, the exe this section to be compile