代码:
#include<windows.h>
#include<stdio.h>

BOOL EnableDebugPrivilege()
{
  HANDLE HToken = NULL;
  LUID SaveDebugNameValue;
  TOKEN_PRIVILEGES Token_Privilege;
  
  if(0==OpenProcessToken(GetCurrentProcess(),TOKEN_ALL_ACCESS,&HToken))
  {
    return false;
  }
  
  if(0==LookupPrivilegeValue(NULL,SE_DEBUG_NAME,&SaveDebugNameValue))
  {
    CloseHandle(HToken);
    
    return false;
  }
  
  Token_Privilege.PrivilegeCount = 1;
  
  Token_Privilege.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
  
  Token_Privilege.Privileges[0].Luid = SaveDebugNameValue;
  
  if(0==AdjustTokenPrivileges(HToken,false,&Token_Privilege,NULL,NULL,NULL))
  {
    CloseHandle(HToken);
    
    return false;
  }
  
  CloseHandle(HToken);
  
  return true;
}

int insert(DWORD pid)
{
  HANDLE hThread=NULL;//远线程的句柄
  HANDLE hProcess=NULL;//将注入的进程句柄
  LPVOID lpDllRemotePath=NULL;//在进程申请得的空间
  HMODULE hmodule=NULL;//模块句柄
  FARPROC lfnAddr=NULL;//函数的地址
  char szDllPathName[]="d:\\我的文档\\桌面\\myhook\\insertDll\\Debug\\insertDll.dll";
  if(!EnableDebugPrivilege())
  {
    printf("提权失败！\n");
    return 0;
  }
  hProcess=OpenProcess(PROCESS_ALL_ACCESS,false,pid);//打开目标进程
  DWORD havewrite,id;
  if(hProcess==NULL)
  {
    printf("OpenProcess error!\n");
    return 0;
  }
  lpDllRemotePath=VirtualAllocEx(hProcess,NULL,strlen(szDllPathName)+1,MEM_COMMIT,PAGE_READWRITE);//向进程中申请空间
  if(lpDllRemotePath==NULL)
  {
    printf("VirtualAllocEx error!\n");
    return 0;
  }
  if(!WriteProcessMemory(hProcess,lpDllRemotePath,(LPVOID)szDllPathName,strlen(szDllPathName)+1,&havewrite))
  {
    printf("writeprocessmemory error!\n");
    return 0;
  }
  hmodule=(HMODULE)GetModuleHandle("kernel32.dll");
  lfnAddr=GetProcAddress(hmodule,"LoadLibraryA");
  hThread=CreateRemoteThread(hProcess,NULL,0,(LPTHREAD_START_ROUTINE)lfnAddr,(LPVOID)lpDllRemotePath,0,&id);
  if(hThread==NULL)
  {
    printf("CreateRemoteThread error!\n");
    return 0;
  }
  return 1;
}

void main()
{
  int id;
  printf("输入进程ID：");
  scanf("%d",&id);
  if(!insert((DWORD)id))
  {
    printf("注入失败！\n");
  }
  else
  {
    printf("注入成功\n");
  }
}

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