标题 | vbscript.encode解密函数 |
范文 | 这里提供了vbscript的加密vbscript encode后 的解密函数,通过javascript实现: 在线解密:vbscript.encode 解密函数 <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> |
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