一个完整的DLL远程注入函数

函数名称: CreateRemoteDll()

返加类型:BOOL

接受参数: DLL路径,注入进程ID

其完整代码如下:

 

BOOL CreateRemoteDll(const char *DllFullPath, const DWORD dwRemoteProcessId)
...{


    HANDLE hToken;
    if ( OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&hToken) )
    ...{
        TOKEN_PRIVILEGES tkp;
        
        LookupPrivilegeValue( NULL,SE_DEBUG_NAME,&tkp.Privileges[0].Luid );//修改进程权限
        tkp.PrivilegeCount=1;
        tkp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;
        AdjustTokenPrivileges( hToken,FALSE,&tkp,sizeof tkp,NULL,NULL );//通知系统修改进程权限
        
    }


    HANDLE hRemoteProcess;

    //打开远程线程
    if( (hRemoteProcess = OpenProcess( PROCESS_CREATE_THREAD |    //允许远程创建线程
                            PROCESS_VM_OPERATION |                //允许远程VM操作
                            PROCESS_VM_WRITE,                    //允许远程VM写
                            FALSE, dwRemoteProcessId ) )== NULL )
    ...{
        AfxMessageBox("OpenProcess Error!");
        return FALSE;
    }

    char *pszLibFileRemote;
    //在远程进程的内存地址空间分配DLL文件名缓冲区
    pszLibFileRemote = (char *) VirtualAllocEx( hRemoteProcess, NULL, lstrlen(DllFullPath)+1, 
                            MEM_COMMIT, PAGE_READWRITE);
    if(pszLibFileRemote == NULL)
    ...{
        AfxMessageBox("VirtualAllocEx error! ");
        return FALSE;
    }

    //将DLL的路径名复制到远程进程的内存空间
    if( WriteProcessMemory(hRemoteProcess,
                pszLibFileRemote, (void *) DllFullPath, lstrlen(DllFullPath)+1, NULL) == 0)
    ...{
        AfxMessageBox("WriteProcessMemory Error");
        return FALSE;
    }

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

    if(pfnStartAddr == NULL)
    ...{
        AfxMessageBox("GetProcAddress Error");
        return FALSE;
    }

    HANDLE hRemoteThread;
    if( (hRemoteThread = CreateRemoteThread( hRemoteProcess, NULL, 0, 
                pfnStartAddr, pszLibFileRemote, 0, NULL) ) == NULL)
    ...{
        AfxMessageBox("CreateRemoteThread Error");
        return FALSE;
    }

    return TRUE;
}