用VC++写的远程线程插入代码

#include<windows.h>
#include<stdlib.h>
#include<stdio.h>
#include<psapi.h>

DWORD ProcessToPID( char *);            //将进程名转换为PID的函数
void  CheckError  ( int, int, char *);        //出错处理函数
void  usage       ( char *);            //使用说明函数

PDWORD pdwThreadId;
HANDLE hRemoteThread, hRemoteProcess;
DWORD  fdwCreate, dwStackSize, dwRemoteProcessId;
PWSTR  pszLibFileRemote=NULL;

void main(int argc,char **argv)
{
   int iReturnCode;
   char lpDllFullPathName[MAX_PATH];
   WCHAR pszLibFileName[MAX_PATH]={0};
   //处理命令行参数
   if (argc!=3) usage("Parametes number incorrect!");
   else{
       //如果输入的是进程名，则转化为PID
       if(isdigit(*argv[1])) dwRemoteProcessId = atoi(argv[1]);
       else dwRemoteProcessId = ProcessToPID(argv[1]);
       //判断输入的DLL文件名是否是绝对路径
       if(strstr(argv[2],"://")!=NULL)
           strncpy(argv[2], lpDllFullPathName, MAX_PATH);
       else
       {    //取得当前目录，将相对路径转换成绝对路径
           iReturnCode = GetCurrentDirectory(MAX_PATH, lpDllFullPathName);
           CheckError(iReturnCode, 0, "GetCurrentDirectory");
           strcat(lpDllFullPathName, "//");
           strcat(lpDllFullPathName, argv[2]);
           printf("Convert DLL filename to FullPathName:/n/t%s/n/n",
lpDllFullPathName);
       }
       //判断DLL文件是否存在
       iReturnCode=(int)_lopen(lpDllFullPathName, OF_READ);
       CheckError(iReturnCode, HFILE_ERROR, "DLL File not Exist");
       //将DLL文件全路径的ANSI码转换成UNICODE码
       iReturnCode = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS,
lpDllFullPathName, strlen(lpDllFullPathName),
                                       pszLibFileName, MAX_PATH);
       CheckError(iReturnCode, 0, "MultByteToWideChar");
       //输出最后的操作参数
       wprintf(L"Will inject %s", pszLibFileName);
       printf(" into process:%s PID=%d/n", argv[1], dwRemoteProcessId);        
   }


   //打开远程进程
   hRemoteProcess = OpenProcess(PROCESS_CREATE_THREAD | //允许创建线程
                                PROCESS_VM_OPERATION | //允许VM操作
                                PROCESS_VM_WRITE,       //允许VM写
                                FALSE, dwRemoteProcessId );    
   CheckError( (int) hRemoteProcess, NULL,
               "Remote Process not Exist or Access Denied!");
   //计算DLL路径名需要的内存空间
   int cb = (1 + lstrlenW(pszLibFileName)) * sizeof(WCHAR);
   pszLibFileRemote = (PWSTR) VirtualAllocEx( hRemoteProcess, NULL, cb,
                       MEM_COMMIT, PAGE_READWRITE);
   CheckError((int)pszLibFileRemote, NULL, "VirtualAllocEx");
   //将DLL的路径名复制到远程进程的内存空间
   iReturnCode = WriteProcessMemory(hRemoteProcess,
       pszLibFileRemote, (PVOID) pszLibFileName, cb, NULL);
   CheckError(iReturnCode, false, "WriteProcessMemory");
   //计算LoadLibraryW的入口地址
   PTHREAD_START_ROUTINE pfnStartAddr = (PTHREAD_START_ROUTINE)
       GetProcAddress(GetModuleHandle(TEXT("Kernel32")), "LoadLibraryW");
   CheckError((int)pfnStartAddr, NULL, "GetProcAddress");
   //启动远程线程，通过远程线程调用用户的DLL文件    
   hRemoteThread = CreateRemoteThread( hRemoteProcess, NULL, 0,                                                         pfnStartAddr, pszLibFileRemote, 0, NULL);
   CheckError((int)hRemoteThread, NULL, "Create Remote Thread");
   //等待远程线程退出
   WaitForSingleObject(hRemoteThread, INFINITE);
   //清场处理
   if (pszLibFileRemote != NULL)
       VirtualFreeEx(hRemoteProcess, pszLibFileRemote, 0, MEM_RELEASE);
   if (hRemoteThread != NULL) CloseHandle(hRemoteThread );
   if (hRemoteProcess!= NULL) CloseHandle(hRemoteProcess);
}//end of main()

//将进程名转换为PID的函数
DWORD ProcessToPID(char *InputProcessName)
{
   DWORD aProcesses[1024], cbNeeded, cProcesses;
   unsigned int i;
   HANDLE hProcess;
   HMODULE hMod;
   char szProcessName[MAX_PATH] = "UnknownProcess";



   // 计算目前有多少进程, aProcesses[]用来存放有效的进程PIDs
   if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )  return 0;
   cProcesses = cbNeeded / sizeof(DWORD);
   // 按有效的PID遍历所有的进程
   for ( i = 0; i < cProcesses; i++ )
   {
       // 打开特定PID的进程
       hProcess = OpenProcess( PROCESS_QUERY_INformATION |
PROCESS_VM_READ,
                FALSE, aProcesses[i]);
       // 取得特定PID的进程名
       if ( hProcess )
       {
           if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod), &cbNeeded) )
           {
               GetModuleBaseName( hProcess, hMod,
szProcessName, sizeof(szProcessName) );
               //将取得的进程名与输入的进程名比较，如相同则返回进程PID
               if(!_stricmp(szProcessName, InputProcessName)){
                   CloseHandle( hProcess );
                   return aProcesses[i];
               }
           }
       }//end of if ( hProcess )
   }//end of for
   //没有找到相应的进程名，返回0
   CloseHandle( hProcess );
   return 0;
}//end of ProcessToPID

//错误处理函数CheckError()
//如果iReturnCode等于iErrorCode,则输出pErrorMsg并退出
void CheckError(int iReturnCode, int iErrorCode, char *pErrorMsg)
{
   if(iReturnCode==iErrorCode) {
       printf("%s Error:%d/n/n", pErrorMsg, GetLastError());
       //清场处理
       if (pszLibFileRemote != NULL)
           VirtualFreeEx(hRemoteProcess, pszLibFileRemote, 0, MEM_RELEASE);
       if (hRemoteThread != NULL) CloseHandle(hRemoteThread );
       if (hRemoteProcess!= NULL) CloseHandle(hRemoteProcess);
       exit(0);
   }
}//end of CheckError()

//使用方法说明函数usage()
void usage(char * pErrorMsg)
{
   printf("%s/n/n",pErrorMsg);
   printf("/t/tRemote Process DLL by Shotgun/n");
   printf("/tThis program can inject a DLL into remote process/n");
   printf("Email:/n");
   printf("/tShotgun@Xici.Net/n");
   printf("HomePage:/n");
   printf("/thttp://It.Xici.Net/n");
   printf("/thttp://www.Patching.Net/n");
   printf("USAGE:/n");
   printf("/tRmtDLL.exe PID[|ProcessName] DLLFullPathName/n");
   printf("Example:/n");
   printf("/tRmtDLL.exe 1024 C://WINNT//System32//MyDLL.dll/n");
   printf("/tRmtDLL.exe Explorer.exe C://MyDLL.dll/n");
   exit(0);
}//end of usage()

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