VBA工程加密PJ方式(两种)
更新时间:2021年12月03日 17:16:32 作者:张翰博
今天遇到一个excel小工具感觉不错,想研究研究代码,竟然有密码,我就不淡定了。网上找了找代码,改了一下就OK了。接下来通过本文给大家分享两种方式破解VBA工程加密,需要的朋友参考下吧
两种方式破解VBA加密代码
第一种:
Sub VBAPassword1() '你要解保护的Excel文件路径 Filename = Application.GetOpenFilename("Excel文件(*.xls & *.xla & *.xlt),*.xls;*.xla;*.xlt", , "VBA破解") If Dir(Filename) = "" Then MsgBox "没找到相关文件,清重新设置。" Exit Sub Else FileCopy Filename, Filename & ".bak" '备份文件。 End If Dim GetData As String * 5 Open Filename For Binary As #1 Dim CMGs As Long Dim DPBo As Long For i = 1 To LOF(1) Get #1, i, GetData If GetData = "CMG=""" Then CMGs = i If GetData = "[Host" Then DPBo = i - 2: Exit For Next If CMGs = 0 Then MsgBox "请先对VBA编码设置一个保护密码...", 32, "提示" Exit Sub End If Dim St As String * 2 Dim s20 As String * 1 '取得一个0D0A十六进制字串 Get #1, CMGs - 2, St '取得一个20十六制字串 Get #1, DPBo + 16, s20 '替换加密部份机码 For i = CMGs To DPBo Step 2 Put #1, i, St Next '加入不配对符号 If (DPBo - CMGs) Mod 2 <> 0 Then Put #1, DPBo + 1, s20 End If MsgBox "文件解密成功......", 32, "提示" Close #1 End Sub
第二种:
Option Explicit Private Declare Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Long, Source As Long, ByVal Length As Long) Private Declare Function VirtualProtect Lib "kernel32" (lpAddress As Long, ByVal dwSize As Long, ByVal flNewProtect As Long, lpflOldProtect As Long) As Long Private Declare Function GetModuleHandleA Lib "kernel32" (ByVal lpModuleName As String) As Long Private Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, ByVal lpProcName As String) As Long Private Declare Function DialogBoxParam Lib "user32" Alias "DialogBoxParamA" (ByVal hInstance As Long, ByVal pTemplateName As Long, ByVal hWndParent As Long, ByVal lpDialogFunc As Long, ByVal dwInitParam As Long) As Integer Dim HookBytes(0 To 5) As Byte Dim OriginBytes(0 To 5) As Byte Dim pFunc As Long Dim Flag As Boolean Private Function GetPtr(ByVal Value As Long) As Long GetPtr = Value End Function Public Sub RecoverBytes() If Flag Then MoveMemory ByVal pFunc, ByVal VarPtr(OriginBytes(0)), 6 End Sub Public Function Hook() As Boolean Dim TmpBytes(0 To 5) As Byte Dim p As Long Dim OriginProtect As Long Hook = False pFunc = GetProcAddress(GetModuleHandleA("user32.dll"), "DialogBoxParamA") If VirtualProtect(ByVal pFunc, 6, &H40, OriginProtect) <> 0 Then MoveMemory ByVal VarPtr(TmpBytes(0)), ByVal pFunc, 6 If TmpBytes(0) <> &H68 Then MoveMemory ByVal VarPtr(OriginBytes(0)), ByVal pFunc, 6 p = GetPtr(AddressOf MyDialogBoxParam) HookBytes(0) = &H68 MoveMemory ByVal VarPtr(HookBytes(1)), ByVal VarPtr(p), 4 HookBytes(5) = &HC3 MoveMemory ByVal pFunc, ByVal VarPtr(HookBytes(0)), 6 Flag = True Hook = True End If End If End Function Private Function MyDialogBoxParam(ByVal hInstance As Long, _ ByVal pTemplateName As Long, ByVal hWndParent As Long, _ ByVal lpDialogFunc As Long, ByVal dwInitParam As Long) As Integer If pTemplateName = 4070 Then MyDialogBoxParam = 1 Else RecoverBytes MyDialogBoxParam = DialogBoxParam(hInstance, pTemplateName, hWndParent, lpDialogFunc, dwInitParam) Hook End If End Function Sub Crack() If Hook Then MsgBox "破解成功" End Sub
本文来自博客园,作者:张翰博,转载请注明原文链接:https://www.cnblogs.com/vbashuo/p/15638693.html
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