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<title>Hook 系统服务隐藏端口</title>
<meta name="keywords" content="jiurl IOCTL_TCP_QUERY_INFORMATION_EX TCPSNMPInfo TCPAddrEntry">
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<p align="center">Hook 系统服务隐藏端口</p>
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<p align="center"><font face="宋体">作者: <a href="mailto:jiurl@mail.china.com"> JIURL</a>
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主页: <a href="http://jiurl.yeah.net"> http://jiurl.yeah.net</a>
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<p align="center"><font face="宋体"> 日期: 2004-03-30</font>
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<p> 有时候写程序，调试程序真是一件非常有趣的事，就比如这次，蹦蹦跳跳，笑嘻嘻，意犹未尽的就把这个程序搞好了。<p>
netstat 或者其他各种列举端口的工具，比如fport,或者 sysinternals 的 Tcpview，都是调用 Iphlpapi.dll 中的
API 来完成端口的列举。而 Iphlpapi.dll 中的 API 最终是使用 ZwDeviceIoControlFile ，向设备对象
Device\Tcp 发 IOCTL_TCP_QUERY_INFORMATION_EX 来得到各种信息的。于是我们只要Hook相应的System
Service
，然后对得到的结果做一些处理，弄掉不希望出现的端口信息就可以了。不过真正的问题在于，IOCTL_TCP_QUERY_INFORMATION_EX
和端口相关的各种结构定义，参数含义目前都（大部分）是未公开，没人知道的，也就是Undocumented的。Undocumented??
ring3调试，我熟啊。ring0调试，我熟啊。Windows驱动，我熟啊。Windows系统，我熟啊。我怕谁啊我。Undocumented??爽，要的就是Undocumented。<p>
通过ring3调试，分析Iphlpapi.dll是如何使用 IOCTL_TCP_QUERY_INFORMATION_EX
相关的各种参数，结合msdn中的一些信息，于是很轻松的搞清了需要了解的结构。用我自己写的awx建一个VC的驱动项目，写好了Hook部分。<p>
关于本例中使用的解决Hook在各种Windows版本下运行的方法，在很多地方很多地方都出现了，我不清楚最早是谁想出来的，我是在<span class="BoldText">《Undocumented
Windows NT》一书的源码中第一次看到这种方法的。</span><p><span class="BoldText">
下面是实现源码，很简单，我就不多说什么了。</span><p><span class="BoldText">#if 0
//================================================================<br>
Copyright (c) JIURL, All Rights Reserved<br>
========================================================================<br>
<br>
/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/<br>
<br>
Module Name:<br>
<br>
Jiurl_tcpioctl.h<br>
<br>
About:<br>
<br>
- 这个驱动项目由一个我写的 AppWizard 创建。<br>
<br>
[ HomePage ] http://jiurl.yeah.net<br>
~~~~~~~~~~~~~~~~~~~~~<br>
[ Email ] jiurl@mail.china.com<br>
~~~~~~~~~~~~~~~~~~~~<br>
[ Forum ] http://jiurl.cosoft.org.cn/forum/index.php<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
- 有偿定制 AppWizard ，请发邮件联系 。<br>
<br>
Comments:<br>
<br>
本文件中的所有内容目前都是未公开的，由我分析得出，是隐藏端口的关键内容。<br>
Undocumented?? 爽!要的就是 Undocumented 。<br>
<br>
/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/<br>
#endif<br>
<br>
<br>
// jiurl // IPSNMPInfo 结构的定义是根据 RFC 2011 <br>
// jiurl // 所以我根据 RFC 2022 ，仿 IPSNMPInfo， 定义结构 TCPSNMPInfo <br>
// jiurl // 再通过一些分析得到一些扩展部分的定义<br>
<br>
typedef struct TCPSNMPInfo {<br>
ULONG tcpsi_RtoAlgorithm;<br>
ULONG tcpsi_RtoMin;<br>
ULONG tcpsi_RtoMax;<br>
ULONG tcpsi_MaxConn;<br>
ULONG tcpsi_ActiveOpens;<br>
ULONG tcpsi_PassiveOpens;<br>
ULONG tcpsi_AttemptFails;<br>
ULONG tcpsi_EstabResets;<br>
ULONG tcpsi_CurrEstab;<br>
ULONG tcpsi_InSegs;<br>
ULONG tcpsi_OutSegs;<br>
ULONG tcpsi_RetransSegs;<br>
ULONG tcpsi_unknown1;<br>
ULONG tcpsi_unknown2;<br>
ULONG tcpsi_numconn;<br>
} TCPSNMPInfo;<br>
<br>
#define tcpRtoAlgorithm_other 1 // none of the following<br>
#define tcpRtoAlgorithm_constant 2 // a constant rto<br>
#define tcpRtoAlgorithm_rsre 3 // MIL-STD-1778, Appendix B<br>
#define tcpRtoAlgorithm_vanj 4 // Van Jacobson's algorithm<br>
<br>
#define TCP_MIB_STATS_ID 1<br>
#define TCP_MIB_ADDRTABLE_ENTRY_ID 0x101<br>
#define TCP_MIB_ADDRTABLE_ENTRY_EX_ID 0x102<br>
<br>
<br>
typedef struct TCPAddrEntry {<br>
ULONG tae_ConnState;<br>
ULONG tae_ConnLocalAddress;<br>
ULONG tae_ConnLocalPort;<br>
ULONG tae_ConnRemAddress;<br>
ULONG tae_ConnRemPort;<br>
} TCPAddrEntry;<br>
<br>
#define tcpConnState_closed 1<br>
#define tcpConnState_listen 2<br>
#define tcpConnState_synSent 3<br>
#define tcpConnState_synReceived 4<br>
#define tcpConnState_established 5<br>
#define tcpConnState_finWait1 6<br>
#define tcpConnState_finWait2 7<br>
#define tcpConnState_closeWait 8<br>
#define tcpConnState_lastAck 9<br>
#define tcpConnState_closing 10<br>
#define tcpConnState_timeWait 11<br>
#define tcpConnState_deleteTCB 12<br>
<br>
typedef struct TCPAddrExEntry {<br>
ULONG tae_ConnState;<br>
ULONG tae_ConnLocalAddress;<br>
ULONG tae_ConnLocalPort;<br>
ULONG tae_ConnRemAddress;<br>
ULONG tae_ConnRemPort;<br>
ULONG pid;<br>
} TCPAddrExEntry;<br>
<br>
#if 0 //================================================================<br>
Copyright (c) JIURL, All Rights Reserved<br>
========================================================================<br>
<br>
/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/<br>
<br>
Module Name:<br>
<br>
JiurlPortHide.h<br>
<br>
About:<br>
<br>
- 这个驱动项目由一个我写的 AppWizard 创建。<br>
<br>
[ HomePage ] http://jiurl.yeah.net<br>
~~~~~~~~~~~~~~~~~~~~~<br>
[ Email ] jiurl@mail.china.com<br>
~~~~~~~~~~~~~~~~~~~~<br>
[ Forum ] http://jiurl.cosoft.org.cn/forum/index.php<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
<br>
- 有偿定制 AppWizard ，请发邮件联系 。<br>
<br>
/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/<br>
#endif<br>
<br>
#define PORTHIDE 139<br>
<br>
#pragma pack(1)<br>
typedef struct ServiceDescriptorEntry {<br>
unsigned int *ServiceTableBase;<br>
unsigned int *ServiceCounterTableBase; //Used only in checked build<br>
unsigned int NumberOfServices;<br>
unsigned char *ParamTableBase;<br>
} ServiceDescriptorTableEntry_t, *PServiceDescriptorTableEntry_t;<br>
#pragma pack()<br>
<br>
__declspec(dllimport) ServiceDescriptorTableEntry_t
KeServiceDescriptorTable;<br>
<br>
<br>
NTSYSAPI<br>
NTSTATUS<br>
NTAPI<br>
ZwDeviceIoControlFile(<br>
IN HANDLE FileHandle,<br>
IN HANDLE Event OPTIONAL,<br>
IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,<br>
IN PVOID ApcContext OPTIONAL,<br>
OUT PIO_STATUS_BLOCK IoStatusBlock,<br>
IN ULONG IoControlCode,<br>
IN PVOID InputBuffer OPTIONAL,<br>
IN ULONG InputBufferLength,<br>
OUT PVOID OutputBuffer OPTIONAL,<br>
IN ULONG OutputBufferLength<br>
);<br>
<br>
typedef NTSTATUS (*ZWDEVICEIOCONTROLFILE)(<br>
IN HANDLE FileHandle,<br>
IN HANDLE Event OPTIONAL,<br>
IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,<br>
IN PVOID ApcContext OPTIONAL,<br>
OUT PIO_STATUS_BLOCK IoStatusBlock,<br>
IN ULONG IoControlCode,<br>
IN PVOID InputBuffer OPTIONAL,<br>
IN ULONG InputBufferLength,<br>
OUT PVOID OutputBuffer OPTIONAL,<br>
IN ULONG OutputBufferLength<br>
);<br>
<br>
ZWDEVICEIOCONTROLFILE OldZwDeviceIoControlFile;<br>
<br>
void DriverUnload(IN PDRIVER_OBJECT DriverObject);<br>
<br>
NTSTATUS<br>
DriverDispatch(IN PDEVICE_OBJECT DeviceObject,IN PIRP Irp);<br>
<br>
NTSTATUS NewZwDeviceIoControlFile(<br>
IN HANDLE FileHandle,<br>
IN HANDLE Event OPTIONAL,<br>
IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,<br>
IN PVOID ApcContext OPTIONAL,<br>
OUT PIO_STATUS_BLOCK IoStatusBlock,<br>
IN ULONG IoControlCode,<br>
IN PVOID InputBuffer OPTIONAL,<br>
IN ULONG InputBufferLength,<br>
OUT PVOID OutputBuffer OPTIONAL,<br>
IN ULONG OutputBufferLength<br>
);<br>
<br>
<br>
// jiurl // from addrconv.cpp<br>
#define ntohs(s) \<br>
( ( ((s) >> 8) & 0x00FF ) | \<br>
( ((s) << 8) & 0xFF00 ) )<br>
<br>
<br>
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