得到线程入口地址的方式

要获取入口地址，可以用Native API： NtQueryInformationThread，以ThreadQuerySetWin32StartAddress为参数

具体代码：

.h：

#pragma once
typedef LONG NTSTATUS;
typedef NTSTATUS (WINAPI *NTQUERYINFORMATIONTHREAD)(
	HANDLE ThreadHandle, 
	ULONG ThreadInformationClass, 
	PVOID ThreadInformation, 
	ULONG ThreadInformationLength, 
	PULONG ReturnLength);
typedef enum _THREADINFOCLASS {
	ThreadBasicInformation,
	ThreadTimes,
	ThreadPriority,
	ThreadBasePriority,
	ThreadAffinityMask,
	ThreadImpersonationToken,
	ThreadDescriptorTableEntry,
	ThreadEnableAlignmentFaultFixup,
	ThreadEventPair_Reusable,
	ThreadQuerySetWin32StartAddress,
	ThreadZeroTlsCell,
	ThreadPerformanceCount,
	ThreadAmILastThread,
	ThreadIdealProcessor,
	ThreadPriorityBoost,
	ThreadSetTlsArrayAddress,   // Obsolete
	ThreadIsIoPending,
	ThreadHideFromDebugger,
	ThreadBreakOnTermination,
	ThreadSwitchLegacyState,
	ThreadIsTerminated,
	ThreadLastSystemCall,
	ThreadIoPriority,
	ThreadCycleTime,
	ThreadPagePriority,
	ThreadActualBasePriority,
	ThreadTebInformation,
	ThreadCSwitchMon,          // Obsolete
	ThreadCSwitchPmu,
	ThreadWow64Context,
	ThreadGroupInformation,
	ThreadUmsInformation,      // UMS
	ThreadCounterProfiling,
	ThreadIdealProcessorEx,
	MaxThreadInfoClass
} THREADINFOCLASS;

class FindThreadStaAddr
{
public:
	FindThreadStaAddr(void);
	~FindThreadStaAddr(void);


	DWORD GetThreadStartAddr1(DWORD dwThreadId);
};

.cpp

#include "StdAfx.h"
#include "FindThreadStaAddr.h"

FindThreadStaAddr::FindThreadStaAddr(void)
{
}

FindThreadStaAddr::~FindThreadStaAddr(void)
{
}


DWORD FindThreadStaAddr::GetThreadStartAddr1(DWORD dwThreadId)
{
	HMODULE hNtdll = LoadLibrary(_T("ntdll.dll"));
	if (!hNtdll)
	{
		return 0;
	}

	NTQUERYINFORMATIONTHREAD NtQueryInformationThread = NULL;
	NtQueryInformationThread = (NTQUERYINFORMATIONTHREAD)
	 GetProcAddress(hNtdll, "NtQueryInformationThread");
	if (!NtQueryInformationThread)
	{
		return 0;
	}

	HANDLE ThreadHandle = NULL;
	ThreadHandle = OpenThread(THREAD_QUERY_INFORMATION, FALSE, dwThreadId);
	if (!ThreadHandle)
	{
		return 0;
	}

	DWORD dwStaAddr = NULL;
	DWORD dwReturnLength = 0;
	if(NtQueryInformationThreadtion(ThreadHandle, ThreadQuerySetWin32StartAddress,
	&dwStaAddr, sizeof(dwStaAddr), &dwReturnLength))
	{
		return 0;
	}

	return dwStaAddr;
}

要注意的是

1.NtQueryInformationThread成功返回的是STATUS_SUCCESS（0）

另一种判断的方式是直接hook  LdrInitializeThunk

贴个原型:

typedef void (__stdcall *LDRINITIALIZETHUNK)(ULONG param0, ULONG param1, ULONG param2, ULONG param3);

PCONTEXT    pContext;
pContext = (PCONTEXT)¶m3;
pContext->Eax即为函数入口地址

这个是入口地址，而且是在没有进入入口函数地址之前调用的，所以可以在这里判断是否需要KILL此线程.

自己写了个demo测试第一种方式：

1。随机生成一个线程，打印它的地址和ID

2。输入要查询的线程ID，点击查询按钮：

打印的线程地址和上面的一致，

源码