Excel工作表保护的密码破解与清除…假装自己破解密码系列？
- 2020 年 4 月 3 日
- 笔记
有一次我女朋友让我帮忙解一个excel表格的保护密码，然后~用了宏
网上下载来的Excel经常会有工作表保护，也就是无法修改，妄图做任何修改的时候你就会看见这句话：
您试图更改的单元格或图表位于受保护的工作表中。若要进行更改，请取消工作表保护。您可能需要输入密码。
那么这篇文章可以简单的帮你解决这个问题…因为Excel中内置了Visual Basic，所以我们写个宏暴力破解密码就可以了。。。
1. 当然是先打开有保护密码的Excel文件
2. 新建一个宏（不同版本的office宏所在的位置不一样，一般都在"菜单—视图" 中）
然后我们点击"录制宏"，名字随便写,然后再次点击，会发现录制宏的位置已经变成了“停止录制”，点击“停止录制”
3.在停止录制后我们点击“查看宏”，找到我们刚才新建的宏，比如我新建的名为“asd”，选中后点击"编辑"
4. 然后在弹出的框中我们可以看到我们新建的空宏"asd"
5. 把这个框内的所有内容全部删除，将下面的所有代码复制进去
6. 关闭Visual Basic，回到我们的Excel，当然这里不需要保存，直接右上角叉掉即可
7. 然后我们回到最初的位置，点击“查看宏”，就会发现刚才我们新建的空宏已经不见了，取而代之的是一个名为"Password_cracking"的宏
8. 选中这个宏，点击执行，就可以破解当前这份Excel中的工作保护密码了
当然在执行完这个宏之后，当前打开的Excel中的密码已经被清除，你可以选择直接保存这份Excel，这样的话你的Excel就不再有密码了，也可以选择记下破解出来的密码，然后关闭这个Excel重新打开一次，输入密码解除保护
Public Sub Password_cracking() Const DBLSPACE As String = vbNewLine & vbNewLine Const AUTHORS As String = DBLSPACE & vbNewLine & _ " Author - GhostCN_Z " Const HEADER As String = "Password_cracking" Const VERSION As String = DBLSPACE & " Version 1.0" Const REPBACK As String = DBLSPACE & "" Const ZHENGLI As String = DBLSPACE & "" Const ALLCLEAR As String = DBLSPACE & "All password is clear" & DBLSPACE & "Please remember to save" Const MSGNOPWORDS1 As String = "No password!" Const MSGNOPWORDS2 As String = "No password!" Const MSGTAKETIME As String = "This will take some time , please wait for a while" & DBLSPACE & "Press next to start" Const MSGPWORDFOUND1 As String = "Password is : " & DBLSPACE & "$$" & DBLSPACE & _ "If the file worksheet has a different password, it will search for the next set of passwords and release" Const MSGPWORDFOUND2 As String = "Password is : " & DBLSPACE & "$$" & DBLSPACE & _ "If the file worksheet has a different password, it will search for the next set of passwords and release" Const MSGONLYONE As String = "" 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 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 & ZHENGLI, vbInformation, HEADER End Sub
