excel密码破解
一: 这是写保护的破解:
各位可以试一下:
设置密码:
打开excel文件: 工具-》保护-》设置密码
然后打开
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,你会看到如下代码
Sub aa()
'
' aa Macro
' 宏由 X 录制,时间: 2009-7-18
'
'
Application.Run "Book1.xls!aa"
Application.Goto Reference:="aa"
End Sub
你要做的将中间那段替换成下面所示的附件sub PasswordBreaker() 和end sub得中间那段
Dim i As Integer, j As Integer, k As Integer Dim l As Integer, m As Integer, n As Integer 。。。 结果就像这样: Sub aa() 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 ActiveSheet.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 ActiveSheet.ProtectContents = 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) ActiveWorkbook.Sheets(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
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 ActiveSheet.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 ActiveSheet.ProtectContents = 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) ActiveWorkbook.Sheets(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
软件界面(我用的是英文版的)
然 后File->OpenFIle
"Open" password 一栏指的是 "打开密码" , Remove是移除该密码的意思,点击remove即可
I a happy man !,又有所积累了