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2010年1月1日 星期五

Excel破解頁面保護法

在受保護的頁面建立一個巨集,名稱隨便,以我這個例子就命名為“密碼破解”
建立後,再點選進巨集中編輯,
將下面的程式碼貼上取代掉巨集編輯器中內建的:
Sub 密碼破解()
  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

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再執行一次本巨集就ok了,記得它是暴力破解,所以cpu loading會升高,
然後會覺得好像excel當掉了不會動(此時cpu正在辛苦以每秒幾十萬上下在暴力破解)
沒多久就會跑出本頁面的密碼了,也許跟你當初設定的是不一樣,但是可以打開保護就是了(這牽涉到它密碼的演算法,我們就不研究了,重點是要能破保護咩)

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