Excel—“撤销工作表保护密码”的破解并获取原始密码

朴灿烈づ我的快乐病毒、 2022-10-02 10:43 203阅读 0赞

您是否遇到过这样的情况：您用Excel编制的报表、表格、程序等，在单元格中设置了公式、函数等，为了防止其他人修改您的设置或者防止您自己无意中修改，您可能会使用Excel的工作表保护功能，但时间久了保护密码容易忘记，这该怎么办？有时您从网上下载的Excel格式的小程序，您想修改，但是作者加了工作表保护密码，怎么办？您只要按照以下步骤操作，Excel工作表保护密码瞬间即破！  
1、打开您需要破解保护密码的Excel文件；  
2、依次点击菜单栏上的工具---宏----录制新宏，输入宏名字如:aa；  
3、停止录制(这样得到一个空宏)；  
4、依次点击菜单栏上的工具---宏----宏,选aa,点编辑按钮；  
5、删除窗口中的所有字符(只有几个),替换为下面的内容；  
从横线下开始复制  
\------------------------------------------------------------------------------------------  
Option Explicit  
Public Sub AllInternalPasswords()  
' Breaks worksheet and workbook structure passwords. Bob McCormick  
' probably originator of base code algorithm modified for coverage  
' of workbook structure / windows passwords and for multiple passwords  
'  
' Norman Harker and JE McGimpsey 27-Dec-2002 (Version 1.1)  
' Modified 2003-Apr-04 by JEM: All msgs to constants, and  
' eliminate one Exit Sub (Version 1.1.1)  
' Reveals hashed passwords NOT original passwords  
Const DBLSPACE As String = vbNewLine & vbNewLine  
Const AUTHORS As String = DBLSPACE & vbNewLine & \_  
"Adapted from Bob McCormick base code by" & \_  
"Norman Harker and JE McGimpsey"  
Const HEADER As String = "AllInternalPasswords User Message"  
Const VERSION As String = DBLSPACE & "Version 1.1.1 2003-Apr-04"  
Const REPBACK As String = DBLSPACE & "Please report failure " & \_  
"to the microsoft.public.excel.programming newsgroup."  
Const ALLCLEAR As String = DBLSPACE & "The workbook should " & \_  
"now be free of all password protection, so make sure you:" & \_  
DBLSPACE & "SAVE IT NOW!" & DBLSPACE & "and also" & \_  
DBLSPACE & "BACKUP!, BACKUP!!, BACKUP!!!" & \_  
DBLSPACE & "Also, remember that the password was " & \_  
"put there for a reason. Don't stuff up crucial formulas " & \_  
"or data." & DBLSPACE & "Access and use of some data " & \_  
"may be an offense. If in doubt, don't."  
Const MSGNOPWORDS1 As String = "There were no passwords on " & \_  
"sheets, or workbook structure or windows." & AUTHORS & VERSION  
Const MSGNOPWORDS2 As String = "There was no protection to " & \_  
"workbook structure or windows." & DBLSPACE & \_  
"Proceeding to unprotect sheets." & AUTHORS & VERSION  
Const MSGTAKETIME As String = "After pressing OK button this " & \_  
"will take some time." & DBLSPACE & "Amount of time " & \_  
"depends on how many different passwords, the " & \_  
"passwords, and your computer's specification." & DBLSPACE & \_  
"Just be patient! Make me a coffee!" & AUTHORS & VERSION  
Const MSGPWORDFOUND1 As String = "You had a Worksheet " & \_  
"Structure or Windows Password set." & DBLSPACE & \_  
"The password found was: " & DBLSPACE & "$$" & DBLSPACE & \_  
"Note it down for potential future use in other workbooks by " & \_  
"the same person who set this password." & DBLSPACE & \_  
"Now to check and clear other passwords." & AUTHORS & VERSION  
Const MSGPWORDFOUND2 As String = "You had a Worksheet " & \_  
"password set." & DBLSPACE & "The password found was: " & \_  
DBLSPACE & "$$" & DBLSPACE & "Note it down for potential " & \_  
"future use in other workbooks by same person who " & \_  
"set this password." & DBLSPACE & "Now to check and clear " & \_  
"other passwords." & AUTHORS & VERSION  
Const MSGONLYONE As String = "Only structure / windows " & \_  
"protected with the password that was just found." & \_  
ALLCLEAR & AUTHORS & VERSION & REPBACK  
Dim w1 As Worksheet, w2 As Worksheet  
Dim i As Integer, j As Integer, k As Integer, l As Integer  
Dim m As Integer, n As Integer, i1 As Integer, i2 As Integer  
Dim i3 As Integer, i4 As Integer, i5 As Integer, i6 As Integer  
Dim PWord1 As String  
Dim ShTag As Boolean, WinTag As Boolean  
Application.ScreenUpdating = False  
With ActiveWorkbook  
WinTag = .ProtectStructure Or .ProtectWindows  
End With  
ShTag = False  
For Each w1 In Worksheets  
ShTag = ShTag Or w1.ProtectContents  
Next w1  
If Not ShTag And Not WinTag Then  
MsgBox MSGNOPWORDS1, vbInformation, HEADER  
Exit Sub  
End If  
MsgBox MSGTAKETIME, vbInformation, HEADER  
If Not WinTag Then  
MsgBox MSGNOPWORDS2, vbInformation, HEADER  
Else  
On Error Resume Next  
Do 'dummy do loop  
For i = 65 To 66: For j = 65 To 66: For k = 65 To 66  
For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66  
For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66  
For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126  
With ActiveWorkbook  
.Unprotect Chr(i) & Chr(j) & Chr(k) & \_  
Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & \_  
Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)  
If .ProtectStructure = False And \_  
.ProtectWindows = False Then  
PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & \_  
Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & \_  
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)  
MsgBox Application.Substitute(MSGPWORDFOUND1, \_  
"$$", PWord1), vbInformation, HEADER  
Exit Do 'Bypass all for...nexts  
End If  
End With  
Next: Next: Next: Next: Next: Next  
Next: Next: Next: Next: Next: Next  
Loop Until True  
On Error GoTo 0  
End If  
If WinTag And Not ShTag Then  
MsgBox MSGONLYONE, vbInformation, HEADER  
Exit Sub  
End If  
On Error Resume Next  
For Each w1 In Worksheets  
'Attempt clearance with PWord1  
w1.Unprotect PWord1  
Next w1  
On Error GoTo 0  
ShTag = False  
For Each w1 In Worksheets  
'Checks for all clear ShTag triggered to 1 if not.  
ShTag = ShTag Or w1.ProtectContents  
Next w1  
If ShTag Then  
For Each w1 In Worksheets  
With w1  
If .ProtectContents Then  
On Error Resume Next  
Do 'Dummy do loop  
For i = 65 To 66: For j = 65 To 66: For k = 65 To 66  
For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66  
For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66  
For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126  
.Unprotect Chr(i) & Chr(j) & Chr(k) & \_  
Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & \_  
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)  
If Not .ProtectContents Then  
PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & \_  
Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & \_  
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)  
MsgBox Application.Substitute(MSGPWORDFOUND2, \_  
"$$", PWord1), vbInformation, HEADER  
'leverage finding Pword by trying on other sheets  
For Each w2 In Worksheets  
w2.Unprotect PWord1  
Next w2  
Exit Do 'Bypass all for...nexts  
End If  
Next: Next: Next: Next: Next: Next  
Next: Next: Next: Next: Next: Next  
Loop Until True  
On Error GoTo 0  
End If  
End With  
Next w1  
End If  
MsgBox ALLCLEAR & AUTHORS & VERSION & REPBACK, vbInformation, HEADER  
End Sub  
\-----------------------------------------------------------------------------------------  
复制到横线以上  
6、关闭编辑窗口；  
7、依次点击菜单栏上的工具---宏-----宏,选AllInternalPasswords,运行,确定两次；  
等一会,就会出现以下对话框：这就是Excel密码对应的原始密码(此密码和原先设置的密码都能打开此文档。如果是别人的文档，你又想恢复密码设置，就可以用此密码进行保护，他就能用他设置的密码打开，你可以试试，很有趣的。字母一定要大写)：

转载于:https://blog.51cto.com/lc8421855/1335836