破解OfficeVBA密码的方法

我自己找到一个office的VBA加密方法，然后再去找一个方法来破解密码，好像有点自相矛盾啊。

如果excel文件是xls或xlm格式（如果不是请转化成此种方法），则可使用以下代码：

'移除VBA编码保护

Sub MoveProtect()

Dim FileName As String

FileName = Application.GetOpenFilename("Excel文件（*.xls & *.xla & *.xlsx & *.xlsm）,*.xls;*.xla ;*.xlsx ; *.xlsm", , "VBA破解")

If FileName = CStr(False) Then

Exit Sub

Else

VBAPassword FileName, False

End If

End Sub

'设置VBA编码保护

Sub SetProtect()

Dim FileName As String

FileName = Application.GetOpenFilename("Excel文件（*.xls & *.xla & *.xlsx & *.xlsm）,*.xls;*.xla ;*.xlsx ; *.xlsm", , "VBA破解")

If FileName = CStr(False) Then

Exit Sub

Else

VBAPassword FileName, True

End If

End Sub

Private Function VBAPassword(FileName As String, Optional Protect As Boolean = False)

If Dir(FileName) = "" Then

Exit Function

Else

FileCopy FileName, FileName & ".bak"

End If

Dim GetData As String * 5

Open FileName For Binary As #1

Dim CMGs As Long

Dim DPBo As Long

For i = 1 To LOF(1)

Get #1, i, GetData

If GetData = "CMG=""" Then CMGs = i

If GetData = "[Host" Then DPBo = i - 2: Exit For

Next

If CMGs = 0 Then

MsgBox "请先对VBA编码设置一个保护密码...", 32, "提示"

Exit Function

End If

If Protect = False Then

Dim St As String * 2

Dim s20 As String * 1

'取得一个0D0A十六进制字串

Get #1, CMGs - 2, St

'取得一个20十六制字串

Get #1, DPBo + 16, s20

'替换加密部份机码

For i = CMGs To DPBo Step 2

Put #1, i, St

Next

'加入不配对符号

If (DPBo - CMGs) Mod 2 <> 0 Then

Put #1, DPBo + 1, s20

End If

MsgBox "文件解密成功......", 32, "提示"

Else

Dim MMs As String * 5

MMs = "DPB="""

Put #1, CMGs, MMs

MsgBox "对文件特殊加密成功......", 32, "提示"

End If

Close #1

End Function