原文地址:http://blog.csdn.net/chenhui530/archive/2008/10/21/3119107.aspx  作者：chenhui530(大仙级人物)

 最近才发现的“RtlCreateUserThread”(下步调用ZwCreateThread)这可是个好东西，可以创建远程线程，也可以用来写多线程程序，但是在VB里好像还是不是很稳定只能用API。

这篇文章给大家一种不同于(CreateRemoteThread)但是原理是一样(都是通过ZwCreateThread创建线程)创建远程线程，实现注入和卸载功能。对于一些编写外挂，或者对Shellcode感兴趣的人是非常有用的学习资料。

多线程实例

Public Function CreateThread(ByVal hProcess As Long, ByVal StartAddress As Long, ByVal Parameter As Long, ByRef Cid As CLIENT_ID) As Long
    Dim hThread As Long
    Dim ntStatus As Long
    ntStatus = RtlCreateUserThread(hProcess, ByVal 0&, 0, 0, 0, 0, StartAddress, Parameter, hThread, Cid)
    CreateThread = hThread
End Function

Public Sub ThreadProc(ByVal Parameter As Long)
    Do While gblnRunning
        Form1.List1.AddItem CStr(Parameter)
        Parameter = Parameter + 1
    Loop
    RtlExitUserThread 0
End Sub

 ----------------------------------------------------------------------------------------

 in form

Option Explicit

Private Sub cmdDelMe_Click()
    DeleteMe Val(txtInput(0).Text)
    Unload Me
End Sub

Private Sub cmdInject_Click()
    If Not IsNumeric(txtInput(0).Text) Then
        MsgBox "请输入正确的PID！！", vbCritical, "提示"
        txtInput(0).SetFocus
        Exit Sub
    End If
    If Dir(txtInput(1).Text, 1 Or 2 Or 4) = "" Then
        MsgBox "DLL不存在！！", vbCritical, "提示"
        txtInput(1).SetFocus
        Exit Sub
    End If
    InjectDll Val(txtInput(0).Text), txtInput(1).Text
End Sub

Private Sub cmdUnInject_Click()
    If Not IsNumeric(txtInput(0).Text) Then
        MsgBox "请输入正确的PID！！", vbCritical, "提示"
        txtInput(0).SetFocus
        Exit Sub
    End If
    If Dir(txtInput(1).Text, 1 Or 2 Or 4) = "" Then
        MsgBox "DLL不存在！！", vbCritical, "提示"
        txtInput(1).SetFocus
        Exit Sub
    End If
    UnInjectDll Val(txtInput(0).Text), txtInput(1).Text
End Sub
in module

 ----------------------------------------------------------------------------------------------------------

Option Explicit

Public Type CLIENT_ID
    UniqueProcess As Long
    UniqueThread  As Long
End Type

Private Declare Function RtlCreateUserThread Lib "ntdll.dll" (ByVal hProcess As Long, _
                                                              ByRef ThreadSecurityDescriptor As Any, _
                                                              ByVal CreateSuspended As Long, _
                                                              ByVal ZeroBits As Long, _
                                                              ByVal MaximumStackSize As Long, _
                                                              ByVal CommittedStackSize As Long, _
                                                              ByVal StartAddress As Long, _
                                                              ByVal Parameter As Long, _
                                                              ByRef hThread As Long, _
                                                              ByRef ClientId As CLIENT_ID) As Long

Private Declare Function RtlExitUserThread Lib "ntdll.dll" (ByVal ntStatus As Long) As Long
Private Declare Function TerminateThread Lib "kernel32" (ByVal hThread As Long, ByVal dwExitCode As Long) As Long
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Public Declare Function CreateEvent Lib "kernel32" Alias "CreateEventA" (lpEventAttributes As Any, ByVal bManualReset As Long, ByVal bInitialState As Long, ByVal lpName As String) As Long
Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Public Declare Function SetEvent Lib "kernel32" (ByVal hEvent As Long) As Long
Private Declare Function MessageBox Lib "user32" Alias "MessageBoxA" (ByVal hwnd As Long, ByVal lpText As String, ByVal lpCaption As String, ByVal wType As Long) As Long

Private Declare Function VirtualAllocEx Lib "kernel32" (ByVal hProcess As Long, lpAddress As Any, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As Long
Private Declare Function VirtualFreeEx Lib "kernel32" (ByVal hProcess As Long, lpAddress As Any, ByVal dwSize As Long, ByVal dwFreeType As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Private Declare Function WriteProcessMemory Lib "kernel32" (ByVal hProcess As Long, lpBaseAddress As Any, lpBuffer As Any, ByVal nSize As Long, lpNumberOfBytesWritten As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long

Private Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" (ByVal lpModuleName As String) As Long
Private Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, ByVal lpProcName As String) As Long
Private Declare Function CreateRemoteThread Lib "kernel32" (ByVal hProcess As Long, lpThreadAttributes As Any, ByVal dwStackSize As Long, lpStartAddress As Long, lpParameter As Any, ByVal dwCreationFlags As Long, lpThreadId As Long) As Long
Private Declare Function GetExitCodeThread Lib "kernel32" (ByVal hThread As Long, lpExitCode As Long) As Long

Private Declare Function GetModuleFileName Lib "kernel32" Alias "GetModuleFileNameA" (ByVal hModule As Long, ByVal lpFileName As String, ByVal nSize As Long) As Long

Private Const INFINITE =
Private Const MEM_COMMIT =
Public Const MEM_RELEASE =
Private Const PAGE_EXECUTE_READWRITE =
Private Const PAGE_READWRITE =
Private Const SYNCHRONIZE As Long =
Private Const STANDARD_RIGHTS_REQUIRED As Long =
Public Const PROCESS_ALL_ACCESS As Long = (STANDARD_RIGHTS_REQUIRED Or SYNCHRONIZE Or &HFFF)

Public Function CreateThread(ByVal hProcess As Long, ByVal StartAddress As Long, ByVal Parameter As Long, ByRef Cid As CLIENT_ID) As Long
    Dim hThread As Long
    Dim ntStatus As Long
    ntStatus = RtlCreateUserThread(hProcess, ByVal 0&, 0, 0, 0, 0, StartAddress, Parameter, hThread, Cid)
    CreateThread = hThread
End Function

Public Function EndThread(ByVal hThread As Long) As Boolean
    EndThread = TerminateThread(hThread, 0)
End Function

Public Function InjectDll(ByVal dwProcessId As Long, ByVal strFileName As String) As Boolean
    Dim hProcess As Long
    Dim nSize As Long
    Dim pBase As Long
    Dim ShellCode() As Byte
    Dim hThread As Long
    Dim Cid As CLIENT_ID
    Dim dwFunAddress As Long
    strFileName = strFileName & Chr(0)
    nSize = LenB(strFileName)
    ReDim ShellCode(nSize + 31 - 1)
    ShellCode(0) =
    ShellCode(1) =
    ShellCode(2) =
    ShellCode(3) =
    ShellCode(4) = &H0 'call $5
    ShellCode(5) = &H5D 'pop ebp
    ShellCode(6) =
    ShellCode(7) = &HC5 'mov eax,ebp
    ShellCode(8) =
    ShellCode(9) =
    ShellCode(10) = &H1A 'add eax,1a '指向dll路径
    ShellCode(11) = &H50 ' push eax
   
    ShellCode(12) =
    ShellCode(13) =
    ShellCode(14) =
    ShellCode(15) =
    ShellCode(16) = &H0 'mov eax,LoadLibraryW
    ShellCode(17) =
    ShellCode(18) = &HD0 'call eax
    ShellCode(19) =
    ShellCode(20) = &H0 'push 0
    ShellCode(21) =
    ShellCode(22) =
    ShellCode(23) =
    ShellCode(24) =
    ShellCode(25) = &H0 'mov eax,ExitThread
    ShellCode(26) =
    ShellCode(27) = &HD0 'call eax
   
    ShellCode(28) =
    ShellCode(29) = &H4 'ret 4
    ShellCode(30) =
    CopyMemory ShellCode(31), ByVal StrPtr(strFileName), nSize
    dwFunAddress = GetProcAddress(GetModuleHandle("kernel32.dll"), "LoadLibraryW")
    CopyMemory ShellCode(13), dwFunAddress, 4
    dwFunAddress = GetProcAddress(GetModuleHandle("kernel32.dll"), "ExitThread")
    CopyMemory ShellCode(22), dwFunAddress, 4
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, dwProcessId)
    If hProcess Then
        pBase = VirtualAllocEx(hProcess, ByVal 0&, nSize + 31, MEM_COMMIT, PAGE_EXECUTE_READWRITE)
        If pBase Then
            If WriteProcessMemory(hProcess, ByVal pBase, ShellCode(0), nSize + 31, ByVal 0&) Then
                hThread = CreateThread(hProcess, pBase, 0, Cid)
                If hThread Then
                    WaitForSingleObject hThread, INFINITE
                    CloseHandle hThread
                    InjectDll = True
                End If
            End If
            VirtualFreeEx hProcess, ByVal pBase, 0, MEM_RELEASE
        End If
        CloseHandle hProcess
    End If
End Function

Public Function UnInjectDll(ByVal dwProcessId As Long, ByVal strFileName As String) As Boolean
    Dim hProcess As Long
    Dim nSize As Long
    Dim pBase As Long
    Dim ShellCode() As Byte
    Dim hThread As Long
    Dim Cid As CLIENT_ID
    Dim dwFunAddress As Long
    strFileName = strFileName & Chr(0)
    nSize = LenB(strFileName)
    ReDim ShellCode(nSize + 32 - 1)
    ShellCode(0) =
    ShellCode(1) =
    ShellCode(2) =
    ShellCode(3) =
    ShellCode(4) = &H0 'call $5
    ShellCode(5) = &H5D 'pop ebp
    ShellCode(6) =
    ShellCode(7) = &HC5 'mov eax,ebp
    ShellCode(8) =
    ShellCode(9) =
    ShellCode(10) = &H1B 'add eax,1b '指向dll路径
    ShellCode(11) = &H50 ' push eax
   
    ShellCode(12) =
    ShellCode(13) =
    ShellCode(14) =
    ShellCode(15) =
    ShellCode(16) = &H0 'mov eax,GetModuleHandleW
    ShellCode(17) =
    ShellCode(18) = &HD0 'call eax
   
    ShellCode(19) =
    ShellCode(20) = &H0 'push 0
    ShellCode(21) = &H50 'push eax
    ShellCode(22) =
    ShellCode(23) =
    ShellCode(24) =
    ShellCode(25) =
    ShellCode(26) = &H0 'mov eax,FreeLibraryAndExitThread
    ShellCode(27) =
    ShellCode(28) = &HD0 'call eax
   
    ShellCode(29) =
    ShellCode(30) = &H4 'ret 4
    ShellCode(31) =
    CopyMemory ShellCode(32), ByVal StrPtr(strFileName), nSize
    dwFunAddress = GetProcAddress(GetModuleHandle("kernel32.dll"), "GetModuleHandleW")
    CopyMemory ShellCode(13), dwFunAddress, 4
    dwFunAddress = GetProcAddress(GetModuleHandle("kernel32.dll"), "FreeLibraryAndExitThread")
    CopyMemory ShellCode(23), dwFunAddress, 4
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, dwProcessId)
    If hProcess Then
        pBase = VirtualAllocEx(hProcess, ByVal 0&, nSize + 32, MEM_COMMIT, PAGE_EXECUTE_READWRITE)
        If pBase Then
            If WriteProcessMemory(hProcess, ByVal pBase, ShellCode(0), nSize + 32, ByVal 0&) Then
                hThread = CreateThread(hProcess, pBase, 0, Cid)
                If hThread Then
                    WaitForSingleObject hThread, INFINITE
                    CloseHandle hThread
                    UnInjectDll = True
                End If
            End If
            VirtualFreeEx hProcess, ByVal pBase, 0, MEM_RELEASE
        End If
        CloseHandle hProcess
    End If
End Function

Public Function DeleteMe(ByVal dwProcessId As Long) As Boolean
    Dim AppName As String
    Dim hProcess As Long
    Dim nSize As Long
    Dim pBase As Long
    Dim ShellCode() As Byte
    Dim hThread As Long
    Dim Cid As CLIENT_ID
    Dim dwFunAddress As Long
    AppName = String(260, Chr(0))
    GetModuleFileName 0, AppName, 260
    AppName = Left(AppName, InStr(AppName, Chr(0)) - 1)
    AppName = AppName & Chr(0)
    nSize = LenB(AppName)
    ReDim ShellCode(nSize + 35 - 1)
    ShellCode(0) =
    ShellCode(1) =
    ShellCode(2) =
    ShellCode(3) =
    ShellCode(4) = &H0 'call $5
    ShellCode(5) = &H5D 'pop ebp
    ShellCode(6) =
    ShellCode(7) = &HC5 'mov eax,ebp
    ShellCode(8) =
    ShellCode(9) =
    ShellCode(10) = &H1E 'add eax,1e '指向主程序路径
    ShellCode(11) = &H50 ' push eax
   
    ShellCode(12) =
    ShellCode(13) =
    ShellCode(14) =
    ShellCode(15) =
    ShellCode(16) = &H0 'mov eax,DeleteFileW
    ShellCode(17) =
    ShellCode(18) = &HD0 'call eax
    ShellCode(19) =
    ShellCode(20) = &HC0 'test eax,eax
    ShellCode(21) =
    ShellCode(22) = &HEF 'jz &ShellCode(6)
   
    ShellCode(23) =
    ShellCode(24) = &H0 'push 0
    ShellCode(25) =
    ShellCode(26) =
    ShellCode(27) =
    ShellCode(28) =
    ShellCode(29) = &H0 'mov eax,ExitThread
    ShellCode(30) =
    ShellCode(31) = &HD0 'call eax
   
    ShellCode(32) =
    ShellCode(33) = &H4 'ret 4
    ShellCode(34) =
    CopyMemory ShellCode(35), ByVal StrPtr(AppName), nSize
    dwFunAddress = GetProcAddress(GetModuleHandle("kernel32.dll"), "DeleteFileW")
    CopyMemory ShellCode(13), dwFunAddress, 4
    dwFunAddress = GetProcAddress(GetModuleHandle("kernel32.dll"), "ExitThread")
    CopyMemory ShellCode(26), dwFunAddress, 4
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, dwProcessId)
    If hProcess Then
        pBase = VirtualAllocEx(hProcess, ByVal 0&, nSize + 35, MEM_COMMIT, PAGE_EXECUTE_READWRITE)
        If pBase Then
            If WriteProcessMemory(hProcess, ByVal pBase, ShellCode(0), nSize + 35, ByVal 0&) Then
                hThread = CreateThread(hProcess, pBase, 0, Cid)
                If hThread Then
'                    WaitForSingleObject hThread, INFINITE
'                    CloseHandle hThread
                    DeleteMe = True
                End If
            End If
'            VirtualFreeEx hProcess, ByVal pBase, 0, MEM_RELEASE
        End If
        CloseHandle hProcess
    End If

End Function

工程下载地址：

200811160129477018.gz