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Paste the two modules into and empty solution with the workbook you want to crack then run the code in module2
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February 26, 2017 11:08
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VBA project password crack
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| Option Explicit | |
| Private Const PAGE_EXECUTE_READWRITE = &H40 | |
| 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, PAGE_EXECUTE_READWRITE, 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 |
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| Sub unprotected() | |
| If Hook Then | |
| MsgBox "VBA Project is unprotected!", vbInformation, "*****" | |
| End If | |
| End Sub |
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I don't know, maybe check StackOverflow where it looks like the original came from