VBScript.Encode解密代码

VBscript.Encode解密


 

<html>
<body>
<center>
<table cellPadding=3 bgcolor=#e7e7e7>
  <tr>
    <td bgcolor=#336699><div align=center><font color=#ffffff size=3><strong>VBscript.Encode解密</strong></font></div></td>
  </tr>
  <tr>
    <td align=middle height=80><script language=JScript>
 var STATE_COPY_INPUT  = 100
 var STATE_READLEN  = 101
 var STATE_DECODE  = 102
 var STATE_UNESCAPE  = 103
 var pick_encoding = new Array(
  1, 2, 0, 1, 2, 0, 2, 0, 0, 2, 0, 2, 1, 0, 2, 0,
  1, 0, 2, 0, 1, 1, 2, 0, 0, 2, 1, 0, 2, 0, 0, 2,
  1, 1, 0, 2, 0, 2, 0, 1, 0, 1, 1, 2, 0, 1, 0, 2,
  1, 0, 2, 0, 1, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 2
 )
 var rawData = new Array(
  0x64,0x37,0x69, 0x50,0x7E,0x2C, 0x22,0x5A,0x65, 0x4A,0x45,0x72,
  0x61,0x3A,0x5B, 0x5E,0x79,0x66, 0x5D,0x59,0x75, 0x5B,0x27,0x4C,
  0x42,0x76,0x45, 0x60,0x63,0x76, 0x23,0x62,0x2A, 0x65,0x4D,0x43,
  0x5F,0x51,0x33, 0x7E,0x53,0x42, 0x4F,0x52,0x20, 0x52,0x20,0x63,
  0x7A,0x26,0x4A, 0x21,0x54,0x5A, 0x46,0x71,0x38, 0x20,0x2B,0x79,
  0x26,0x66,0x32, 0x63,0x2A,0x57, 0x2A,0x58,0x6C, 0x76,0x7F,0x2B,
  0x47,0x7B,0x46, 0x25,0x30,0x52, 0x2C,0x31,0x4F, 0x29,0x6C,0x3D,
  0x69,0x49,0x70, 0x3F,0x3F,0x3F, 0x27,0x78,0x7B, 0x3F,0x3F,0x3F,
  0x67,0x5F,0x51, 0x3F,0x3F,0x3F, 0x62,0x29,0x7A, 0x41,0x24,0x7E,
  0x5A,0x2F,0x3B, 0x66,0x39,0x47, 0x32,0x33,0x41, 0x73,0x6F,0x77,
  0x4D,0x21,0x56, 0x43,0x75,0x5F, 0x71,0x28,0x26, 0x39,0x42,0x78,
  0x7C,0x46,0x6E, 0x53,0x4A,0x64, 0x48,0x5C,0x74, 0x31,0x48,0x67,
  0x72,0x36,0x7D, 0x6E,0x4B,0x68, 0x70,0x7D,0x35, 0x49,0x5D,0x22,
  0x3F,0x6A,0x55, 0x4B,0x50,0x3A, 0x6A,0x69,0x60, 0x2E,0x23,0x6A,
  0x7F,0x09,0x71, 0x28,0x70,0x6F, 0x35,0x65,0x49, 0x7D,0x74,0x5C,
  0x24,0x2C,0x5D, 0x2D,0x77,0x27, 0x54,0x44,0x59, 0x37,0x3F,0x25,
  0x7B,0x6D,0x7C, 0x3D,0x7C,0x23, 0x6C,0x43,0x6D, 0x34,0x38,0x28,
  0x6D,0x5E,0x31, 0x4E,0x5B,0x39, 0x2B,0x6E,0x7F, 0x30,0x57,0x36,
  0x6F,0x4C,0x54, 0x74,0x34,0x34, 0x6B,0x72,0x62, 0x4C,0x25,0x4E,
  0x33,0x56,0x30, 0x56,0x73,0x5E, 0x3A,0x68,0x73, 0x78,0x55,0x09,
  0x57,0x47,0x4B, 0x77,0x32,0x61, 0x3B,0x35,0x24, 0x44,0x2E,0x4D,
  0x2F,0x64,0x6B, 0x59,0x4F,0x44, 0x45,0x3B,0x21, 0x5C,0x2D,0x37,
  0x68,0x41,0x53, 0x36,0x61,0x58, 0x58,0x7A,0x48, 0x79,0x22,0x2E,
  0x09,0x60,0x50, 0x75,0x6B,0x2D, 0x38,0x4E,0x29, 0x55,0x3D,0x3F
 )
 var transformed = new Array()
 for (var i=0; i<3; i++) transformed[i] = new Array()
 for (var i=31; i<=126; i++) for (var j=0; j<3; j++) transformed[j][rawData[(i-31) * 3 + j]] = (i==31) ? 9 : i
 
 var digits = new Array()
 for (var i=0; i<26; i++)
 {
  digits["A".charCodeAt(0)+i] = i
  digits["a".charCodeAt(0)+i] = i+26
 }
 for (var i=0; i<10; i++) digits["0".charCodeAt(0)+i] = i+52
 digits[0x2b] = 62
 digits[0x2f] = 63
 function unescape(char)
 {
  var escapes = "#&!*$"
  var escaped = "\r\n<>@"
  if (char.charCodeAt(0) > 126) return char
  if (escapes.indexOf(char) != -1) return escaped.substr(escapes.indexOf(char), 1)
  return "?"
 }
 
 function decodeBase64(string)
 {
  var val = 0
  val +=  (digits[string.substr(0,1).charCodeAt(0)] << 2)
  val +=  (digits[string.substr(1,1).charCodeAt(0)] >> 4)
  val +=  (digits[string.substr(1,1).charCodeAt(0)] & 0xf) << 12
  val += ((digits[string.substr(2,1).charCodeAt(0)] >> 2) << 8)
  val += ((digits[string.substr(2,1).charCodeAt(0)] & 0x3) << 22)
  val +=  (digits[string.substr(3,1).charCodeAt(0)] << 16)
  return val
 }
 function strdec(encodingString)
 {
 
  var marker = "#@~^"
  var stringIndex = 0
  var scriptIndex = -1
  var unEncodingIndex = 0
  var char = null
  var encodingLength = unEncodinglength = 0
  var state = STATE_COPY_INPUT
  var unEncodingString = ""
  var re, arr
 
  while(state)
  {
   switch (state)
   {
    case (STATE_COPY_INPUT) :
     scriptIndex = encodingString.indexOf(marker, stringIndex)
     if (scriptIndex != -1)
     {
      unEncodingString += encodingString.substring(stringIndex, scriptIndex)
      scriptIndex += marker.length
      state = STATE_READLEN
     }
     else
     {
      stringIndex = stringIndex==0 ? 0 : stringIndex
      unEncodingString += encodingString.substr(stringIndex, encodingString.length)
      state = 0
     }
     break
  
    case (STATE_READLEN) :
     encodingLength = encodingString.substr(scriptIndex, 6)
     unEncodinglength = decodeBase64(encodingLength)
     scriptIndex += (6 + "==".length)
     state = STATE_DECODE
     break
   
    case (STATE_DECODE) :
     if (!unEncodinglength)
     {
      stringIndex = scriptIndex + "DQgAAA==^#~@".length
      unEncodingIndex = 0
      state = STATE_COPY_INPUT
      break
     }
     char = encodingString.substr(scriptIndex, 1)
     if (char == "@") state = STATE_UNESCAPE
     else
     {
      if (char.charCodeAt(0) < 0xFF)
      {
       unEncodingString += String.fromCharCode(transformed[pick_encoding[unEncodingIndex%64]][char.charCodeAt(0)])
       unEncodingIndex++
      }
      else
      {
       unEncodingString += char
      }    
      scriptIndex++
      unEncodinglength--
      break
     }
   
    case STATE_UNESCAPE:
     unEncodingString += unescape(encodingString.substr(++scriptIndex, 1))
     scriptIndex++; unEncodinglength -=2
     unEncodingIndex++
     state = STATE_DECODE
     break
   }
  }
 
  re  = new RegExp("(JScript|VBscript).encode", "gmi")
  while(arr = re.exec(unEncodingString)) unEncodingString = RegExp.leftContext + RegExp.$1 + RegExp.rightContext
  return unEncodingString
 }
 
</script>
      <textarea id=encodeHTML rows=20 cols=80></textarea>
      <br>
      <br>
      <div align=center>
        <button onclick=encodeHTML.innerText=strdec(encodeHTML.innerText)>解密 </button>
      </div></td>
  </tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>

 

 

 

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