破解微軟指令碼密碼編譯演算法

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加密|指令碼|破解|演算法|微軟 很久沒有關心過web開發版,以後可能會來的更少,今天發布一個破解微軟指令碼密碼編譯演算法的vbScript 指令碼,算是給CSDN出把力吧。

這是一個編寫的相當精巧的,用於還原Script Encoder加密後的script代碼,用過asp的人應該知道,微軟提供的指令碼保護技術很弱,本人在csdn 發布過aspDecoder,以前也發布過幾個版本,最近得到該源碼(來源不記得了),是用vbScript編寫的;

複製以下代碼到txt檔案中,使用前修改尾碼為 .vbs 。可以方便的修改為visual basic 或 ASP 程式;

option explicit
Dim oArgs, NomFichier
'Optional argument : the encoded filename
NomFichier=""
Set oArgs = WScript.Arguments
Select Case oArgs.Count
Case 0 'No Arg, popup a dialog box to choose the file
NomFichier=BrowseForFolder("Choose an encoded file", &H4031, &H0011)
Case 1
If Instr(oArgs(0),"?")=0 Then '-? ou /? => aide
NomFichier=oArgs(0)
End If
Case Else
WScript.Echo "Too many parameters"
End Select
Set oArgs = Nothing

If NomFichier<>"" Then
Dim fso
Set fso=WScript.CreateObject("Scripting.FileSystemObject")
If fso.FileExists(NomFichier) Then
Dim fic,contenu
Set fic = fso.OpenTextFile(NomFichier, 1)
Contenu=fic.readAll
fic.close
Set fic=Nothing

Const TagInit="#@~^" '#@~^awQAAA==
Const TagFin="==^#~@" '& chr(0)
Dim DebutCode, FinCode
Do
FinCode=0
DebutCode=Instr(Contenu,TagInit)
If DebutCode>0 Then
If (Instr(DebutCode,Contenu,"==")-DebutCode)=10 Then 'If "==" follows the tag
FinCode=Instr(DebutCode,Contenu,TagFin)
If FinCode>0 Then
Contenu=Left(Contenu,DebutCode-1) & _
Decode(Mid(Contenu,DebutCode+12,FinCode-DebutCode-12-6)) & _
Mid(Contenu,FinCode+6)

End If
End If
End If
Loop Until FinCode=0
WScript.Echo Contenu
Else
WScript.Echo Nomfichier & " not found"
End If
Set fso=Nothing
Else
WScript.Echo "Please give a filename"
WScript.Echo "Usage : " & wscript.fullname & " " & WScript.ScriptFullName & " <filename>"
End If

Function Decode(Chaine)
Dim se,i,c,j,index,ChaineTemp
Dim tDecode(127)

Const Combinaison="1231232332321323132311233213233211323231311231321323112331123132"
Set se=WSCript.CreateObject("Scripting.Encoder")
For i=9 to 127
tDecode(i)="JLA"
Next
For i=9 to 127
ChaineTemp=Mid(se.EncodeScriptFile(".vbs",string(3,i),0,""),13,3)
For j=1 to 3
c=Asc(Mid(ChaineTemp,j,1))
tDecode(c)=Left(tDecode(c),j-1) & chr(i) & Mid(tDecode(c),j+1)
Next
Next
'Next line we correct a bug, otherwise a ")" could be decoded to a ">"
tDecode(42)=Left(tDecode(42),1) & ")" & Right(tDecode(42),1)
Set se=Nothing

Chaine=Replace(Replace(Chaine,"@&",chr(10)),"@#",chr(13))
Chaine=Replace(Replace(Chaine,"@*",">"),"@!","<")
Chaine=Replace(Chaine,"@$","@")
index=-1
For i=1 to Len(Chaine)
c=asc(Mid(Chaine,i,1))
If c<128 Then index=index+1
If (c=9) or ((c>31) and (c<128)) Then
If (c<>60) and (c<>62) and (c<>64) Then
Chaine=Left(Chaine,i-1) & Mid(tDecode(c),Mid(Combinaison,(index mod 64)+1,1),1) & Mid(Chaine,i+1)
End If
End If
Next
Decode=Chaine
End Function

Function BrowseForFolder(ByVal pstrPrompt, ByVal pintBrowseType, ByVal pintLocation)
Dim ShellObject, pstrTempFolder, x
Set ShellObject=WScript.CreateObject("Shell.Application")
On Error Resume Next
Set pstrTempFolder=ShellObject.BrowseForFolder(&H0,pstrPrompt,pintBrowseType,pintLocation)
BrowseForFolder=pstrTempFolder.ParentFolder.ParseName(pstrTempFolder.Title).Path
If Err.Number<>0 Then BrowseForFolder=""
Set pstrTempFolder=Nothing
Set ShellObject=Nothing
End Function



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