excel文件忘记密码后的解密方法

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2024年6月29日发(作者：)

excel文件忘记密码后的解密方法

excel文件密码的设置有2种，一种是写保护，另外一种是打开保护。对应不同

的保护措施，应该用不同的解密方法。

一： 这是写保护的破解：

方法:

1打开文件

2工具---宏----录制新宏---输入名字如:aa

3停止录制(这样得到一个空宏)

4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:(复制吧)

6关闭编辑窗口

7工具---宏-----宏,选AllInternalPasswords,运行,确定两次,等2分钟,再确定.OK,没有密码了!!

代码如下：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 mming 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 Updating = False

With ActiveWorkbook

WinTag = .ProtectStructure Or .ProtectWindows

End With

ShTag = False

For Each w1 In Worksheets

ShTag = ShTag Or tContents

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 tute(MSGPWORDFOUND1, _

"$$", PWord1), vbInformation, HEADER

Exit Do 'Bypass s

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

ect 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 tContents

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 tute(MSGPWORDFOUND2, _

"$$", PWord1), vbInformation, HEADER

'leverage finding Pword by trying on other sheets

For Each w2 In Worksheets

ect PWord1

Next w2

Exit Do 'Bypass s

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

6. 然后执行便可获得密码

附件：

Sub PasswordBreaker()

Dim i As Integer, j As Integer, k As Integer

Dim l As Integer, m As Integer, n As Integer

Dim i1 As Integer, i2 As Integer, i3 As Integer

Dim i4 As Integer, i5 As Integer, i6 As Integer

On Error Resume Next

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

ect 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 tContents = False Then

MsgBox "One usable password is " & Chr(i) & Chr(j) & _

Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _

Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)

(1).Select

Range("a1").FormulaR1C1 = Chr(i) & Chr(j) & _

Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _

Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)

Exit Sub

End If

Next: Next: Next: Next: Next: Next

Next: Next: Next: Next: Next: Next

End Sub

今天解决的大问题！！

解 释一下：

当Excel工作表采用密码保护时，就会生成一个16位(双字节) 长hash值。当输

入密码进行验证时，真正进行比较的就是这个hash值。事实上，有很多不同的

密码都可以生成同样的hash值。

大 家可以试试：

当你用“test”(不含双引号)作为Excel工作表保护密码，你同样可以用

“zzyw”(同样不含双引号)这个密码 进行解锁。怎么样，神奇吧?

Excel工作簿保护时将密码hash化然后存储起来，解密时也是将输入的密码

hash 求值然后与储存的hash值比较，用不同的字串hash求值后可以生 成同

样的hash结果，根据这个原理，我们用一个12位的字串进行hash求值，尝试

破解excel的工作簿保护密码。其实这个破解的方法很简单，就是利 用穷举法，

不断的用不同的字串组合去尝试比较，用11位A、B字母的组合加1位其他字母

可以生成任意的hash字串。

二：这是打开保护的破解

下 载一个工具软件Office Password Recovery Toolbox

步骤/方法

1

先暂定系统中的杀毒软件，等将Excel密码破解完毕后再重新开启杀毒。（破解

类的工具杀毒软件都会误认为是木马或病毒，这个没毒，请放心使用。）

2

双击运行该软件；

3

单击“文件”按钮，在弹出的菜单中选择“打开文件…”，然后找到你需要破解

的Excel表格的存放位置，打开；

4

此时，Excel文件就已经导入了此软件，大家还可以看到可以破解“打开”、写

入、工作簿密码、共享工作簿密码、VBA工程密码等，全部可以移除。点击界

面上的“移除密码”；

5

点击“移除密码”以后会提示程序必须要链接网络才可以运行，（确定你的计算

机是否已经链接好了网络，然后单击“确定”按钮）；

6

这时后会提示 “状态： 正在链接到 Rixler Server ”，只需等待几秒钟破解完

成即可。

7

OK，密码被成功移除，该文档已经被成功解密，如下图：

8

8.哦，生成了一个新的没有密码了的文档：西西软件 _

里边内容部方便公开，我随便打开了一个测试时打开的截图。

什么的字样就是我破解后看到的内容。

图中的

9

类似的破解软件现在已经很多了，有兴趣的可以自己去找找自己喜欢用了，总之

自己习惯用的才是最好用的。

注意事项

此方法只是为了给忘记自己文档的同仁提供方便，请不要用于偷窥别人隐私等不

道德的用途。

本文标签： 密码破解打开