MS Office 2013 - VBA密码安全 [英] MS Office 2013 - VBA password security

问题描述

我想知道MS Office 2013上的VBA密码是否安全。

我在网上搜索过，有一些网站销售软件来做，是否可靠？

我想开发围绕我的办公室文件的一些安全性，这取决于内部的VBA代码，但如果vba代码可以轻松更改/看到这是非常有意义的。

谢谢

解决方案

使用这个答案如下：是有没有办法在Excel VBA项目中破解密码？

而不是做所有的十六进制的东西。你可以试试这个。它将适用于任何文件（* .xls，* .xlsm，* .xlam ...）。测试并在Excel 2007，Excel 2010和Excel 2013 - 32位版本

上运行。

1. 打开文件s）包含您锁定的VBA项目



2. 创建一个新的xlsm文件并将此代码存储在 Module1

     Option Explicit 
    
    Private Const PAGE_EXECUTE_READWRITE =& H40 
    
   私有声明Sub MoveMemory Libkernel32别名RtlMoveMemory _ 
   （目的地长，源长，ByVal长度）
    
   私有声明函数VirtualProtect Libkernel32（lpAddress As Long，_ 
    ByVal dwSize As Long ，ByVal flNewProtect As Long，lpflOldProtect As Long）As Long 
    
   私有声明函数GetModuleHandleA Libkernel32（ByVal lpModuleName As String）As Long 
    
   私有声明函数GetProcAddress Lib kernel32（ByVal hModule As Long，_ 
    ByVal lpProcName As String）As Long 
    
   私有声明函数DialogBoxPar am Libuser32别名DialogBoxParamA（ByVal hInstance As Long，_ 
    ByVal pTemplateName As Long，ByVal hWndParent As Long，_ 
    ByVal lpDialogFunc As Long，ByVal dwInitParam As Long）As Integer 
    
    Dim HookBytes（0到5）As Byte 
    Dim OriginBytes（0到5）As Byte 
    Dim pFunc As Long 
    Dim Flag As Boolean 
    
   私有函数GetPtr（ByVal Value As Long）As Long 
    GetPtr = Value 
    End Function 
    
    Public Sub RecoverBytes（）
   如果Flag Then MoveMemory ByVal pFunc，ByVal VarPtr（OriginBytes（0）），6 
    End Sub 
    
   公共函数Hook（）As Boolean 
    Dim TmpBytes（0到5）As Byte 
    Dim p As Long 
    Dim OriginProtect As Long 
    
    Hook = False 
    
    pFunc = GetProcAddress（GetModuleHandleA（user32.dll），DialogBoxParamA）
    
    
   如果VirtualProtect（ByVal pFunc，6，PAGE_EXECUTE_READWRITE，OriginProtect） 0然后
    
    MoveMemory ByVal VarPtr（TmpBytes（0）），ByVal pFunc，6 
   如果TmpBytes（0） & H68然后
    
    MoveMemory ByVal VarPtr（OriginBytes（0）），ByVal pFunc，6 
    
   p = GetPtr（AddressOf MyDialogBoxParam）
    
    HookBytes（ 0）=& H68 
    MoveMemory ByVal VarPtr（HookBytes（1）），ByVal VarPtr（p），4 
    HookBytes（5）=& HC3 
    
    MoveMemory ByVal pFunc ，ByVal VarPtr（HookBytes（0）），6 
    Flag = True 
    Hook = True 
    End If 
    End If 
    End Function 
    
   私有函数MyDialogBoxParam（ByVal hInstance As Long，_ 
    ByVal pTemplateName As Long，ByVal hWndParent As Long，_ 
    ByVal lpDialogFunc As Long，ByVal dwInitParam As Long）As Integer 
   如果pTemplateName = 4070然后
    MyDialogBoxParam = 1 
    Else 
    RecoverBytes 
    MyDialogBoxParam = DialogBoxParam（hInstance，pTemplateName，_ 
    hWndParent，lpDialogFunc，dwInitParam）
    H ook 
   如果
   结束函数
     




3. 将此代码粘贴到 Module2 并运行

     Sub unprotected（）
   如果Hook Then 
    MsgBox VBA项目不受保护！，vb信息，*****
   如果
    End Sub 
     




4. 回到您的VBA项目，享受。

P / S ：这个代码记入了越南开发商Siwtom（昵称）。您可以将此代码转换为Excel插件以供经常使用。

I am wondering about how safe is the VBA password on MS Office 2013.

I've searched online and there are a bunch of websites selling software to do it, is it reliable?

I want to develop some security around my office files that would depend on the VBA code inside, but if the vba code inside can be easily changed/seen it's non sense going that way.

Thanks

解决方案

Using this answer as reference : Is there a way to crack the password on an Excel VBA Project?

Instead of doing all the Hex stuffs. You can try this. It will work for any files (*.xls, *.xlsm, *.xlam ...). Tested and works on Excel 2007, Excel 2010 and Excel 2013 - 32 bit version.

1. Open the file(s) that contain your locked VBA Projects

2. Create a new xlsm file and store this code in Module1

   Option Explicit
   
   Private Const PAGE_EXECUTE_READWRITE = &H40
   
   Private Declare Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" _
           (Destination As Long, Source As Long, ByVal Length As Long)
   
   Private Declare Function VirtualProtect Lib "kernel32" (lpAddress As Long, _
           ByVal dwSize As Long, ByVal flNewProtect As Long, lpflOldProtect As Long) As Long
   
   Private Declare Function GetModuleHandleA Lib "kernel32" (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 DialogBoxParam Lib "user32" Alias "DialogBoxParamA" (ByVal hInstance As Long, _
           ByVal pTemplateName As Long, ByVal hWndParent As Long, _
           ByVal lpDialogFunc As Long, ByVal dwInitParam As Long) As Integer
   
   Dim HookBytes(0 To 5) As Byte
   Dim OriginBytes(0 To 5) As Byte
   Dim pFunc As Long
   Dim Flag As Boolean
   
   Private Function GetPtr(ByVal Value As Long) As Long
       GetPtr = Value
   End Function
   
   Public Sub RecoverBytes()
       If Flag Then MoveMemory ByVal pFunc, ByVal VarPtr(OriginBytes(0)), 6
   End Sub
   
   Public Function Hook() As Boolean
       Dim TmpBytes(0 To 5) As Byte
       Dim p As Long
       Dim OriginProtect As Long
   
       Hook = False
   
       pFunc = GetProcAddress(GetModuleHandleA("user32.dll"), "DialogBoxParamA")
   
   
       If VirtualProtect(ByVal pFunc, 6, PAGE_EXECUTE_READWRITE, OriginProtect) <> 0 Then
   
           MoveMemory ByVal VarPtr(TmpBytes(0)), ByVal pFunc, 6
           If TmpBytes(0) <> &H68 Then
   
               MoveMemory ByVal VarPtr(OriginBytes(0)), ByVal pFunc, 6
   
               p = GetPtr(AddressOf MyDialogBoxParam)
   
               HookBytes(0) = &H68
               MoveMemory ByVal VarPtr(HookBytes(1)), ByVal VarPtr(p), 4
               HookBytes(5) = &HC3
   
               MoveMemory ByVal pFunc, ByVal VarPtr(HookBytes(0)), 6
               Flag = True
               Hook = True
           End If
       End If
   End Function
   
   Private Function MyDialogBoxParam(ByVal hInstance As Long, _
           ByVal pTemplateName As Long, ByVal hWndParent As Long, _
           ByVal lpDialogFunc As Long, ByVal dwInitParam As Long) As Integer
       If pTemplateName = 4070 Then
           MyDialogBoxParam = 1
       Else
           RecoverBytes
           MyDialogBoxParam = DialogBoxParam(hInstance, pTemplateName, _
                              hWndParent, lpDialogFunc, dwInitParam)
           Hook
       End If
   End Function
   

3. Paste this code in Module2 and run it

   Sub unprotected()
       If Hook Then
           MsgBox "VBA Project is unprotected!", vbInformation, "*****"
       End If
   End Sub
   

4. Come back to your VBA Projects and enjoy.

P/S: This code is credited to Siwtom (nick name), a vietnamese developer. You could turn this code into an Excel addin for frequently usage.

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