# Pastebin aT8lwF1A
irb(main):013:0> cipher.iv = '12345678'.force_encoding(Encoding::ASCII_8BIT)
=> "12345678"
irb(main):014:0> cipher.key = 'notthekey'.force_encoding(Encoding::ASCII_8BIT)
=> "notthekey"
irb(main):015:0> cipher.padding = 0
=> 0
irb(main):016:0> cipher.update(URI.decode('G%A1%CB%7C%CB%DA%00%E3%FDT%85%90%2C%FD%3F%C6%13%03b%F8%3F%FF%29%8D%1A%17%DE%14%C4E%12%D6%B4c%D6%22%F9%DC%CAd%21%FBP%E6%7F%917%F4E%95%E7%F8%26%F8%97%E5%A8Z9l%C3q%F1%FF%D0%FE%0A1%1F%F3M%220%7B%CD%A9Vyw%06').force_encoding(Encoding::ASCII_8BIT))
=> "\xEF\x18_\x16\xE5\x1F4\xFBW\xE5\xB6\xDAr\xC5S\xF4\xF5\x81\xD7[J\x8F\xCF\xB9\xE1'\xDFH\\wNb\x81\xB1\xEEs\xDEr\xC6\x18\xD7\x10\xD1\xB2\xBE\"\x85\xD3\xBAd\x0E\xFD\xA8$k\xCF!@\xAB\x11\xA5\xC0Q\xAD\xF10\xA5\x94\xED?\xFE\x0E\x1D\xAF\x85\rC\xDAA\x8B"
irb(main):017:0> plaintext = "\xEF\x18_\x16\xE5\x1F4\xFBW\xE5\xB6\xDAr\xC5S\xF4\xF5\x81\xD7[J\x8F\xCF\xB9\xE1'\xDFH\\wNb\x81\xB1\xEEs\xDEr\xC6\x18\xD7\x10\xD1\xB2\xBE\"\x85\xD3\xBAd\x0E\xFD\xA8$k\xCF!@\xAB\x11\xA5\xC0Q\xAD\xF10\xA5\x94\xED?\xFE\x0E\x1D\xAF\x85\rC\xDAA\x8B" + cipher.final
=> "\xEF\u0018_\u0016\xE5\u001F4\xFBW\xE5\xB6\xDAr\xC5S\xF4\xF5\x81\xD7[J\x8FϹ\xE1'\xDFH\\wNb\x81\xB1\xEEs\xDEr\xC6\u0018\xD7\u0010Ѳ\xBE\"\x85Ӻd\u000E\xFD\xA8$k\xCF!@\xAB\u0011\xA5\xC0Q\xAD\xF10\xA5\x94\xED?\xFE\u000E\u001D\xAF\x85\rC\xDAA\x8B"