vbscript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解码器</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>

 

posted on 2008-01-21 13:13 snowhill 阅读(685) 评论(0)  编辑 收藏 引用 所属分类: 系统管理


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