Wargame.kr [fly me to the moon] 풀이

fly me to the moon

 

javascript game.

can you clear with bypass prevent cheating system?

 

 

 

 

게임을 시작하면, 양 옆 초록색 벽에 부딪히지 않도록 움직여야 한다.

 

 

 

 

 

 

벽에 닿아 죽게 되면 31337점을 얻어야 된다고 나온다.

 

 

 

그럼 이제 js 코드를 확인해 보자

 

난독화가 되어 있어서 읽을 수 없다.

 

 

 

 

 

 

위 난독화 정도는 아래 사이트를 이용해서 unPack이 가능하다.

https://www.strictly-software.com/unpack-javascript

Javascript Unpacker Tool - Strictly Software

 

 

var _0x32bb = ["\x6B\x69\x6C\x6C\x50\x6C\x61\x79\x65\x72", "\x63\x68\x65\x63\x6B\x4C\x69\x66\x65", "\x67\x65\x74\x53\x63\x6F\x72\x65", "\x42\x69\x6E\x63\x53\x63\x6F\x72\x65", "\x73\x68\x72\x69\x6E\x6B\x54\x75\x6E\x6E\x65\x6C", "\x77\x69\x64\x74\x68\x54\x75\x6E\x6E\x65\x6C", "\x6F\x62\x6A\x65\x63\x74", "\x44\x6F\x20\x63\x68\x65\x61\x74\x69\x6E\x67\x2C\x20\x69\x66\x20\x79\x6F\x75\x20\x63\x61\x6E", "\x77\x61\x72\x6E", "\x6F\x66\x66\x73\x65\x74\x4C\x65\x66\x74", "\x74\x75\x6E\x6E\x65\x6C", "\x67\x65\x74\x45\x6C\x65\x6D\x65\x6E\x74\x42\x79\x49\x64", "\x74\x6F\x70", "", "\x70\x78", "\x63\x73\x73", "\x64\x69\x73\x70\x6C\x61\x79", "\x62\x6C\x6F\x63\x6B", "\x65\x61\x63\x68", "\x69\x6D\x67\x2E\x6C\x65\x66\x74\x5F\x77\x61\x6C\x6C", "\x69\x6D\x67\x2E\x72\x69\x67\x68\x74\x5F\x77\x61\x6C\x6C", "\x23\x68\x69\x67\x68\x5F\x73\x63\x6F\x72\x65\x73", "\x72\x65\x6D\x6F\x76\x65", "\x74\x61\x62\x6C\x65", "\x6E\x6F\x6E\x65", "\x64\x69\x76\x23\x73\x63\x6F\x72\x65\x5F\x74\x61\x62\x6C\x65", "\x63\x6C\x69\x63\x6B", "\x74\x65\x78\x74", "\x73\x70\x61\x6E\x23\x73\x63\x6F\x72\x65", "\x6C\x65\x66\x74", "\x69\x6D\x67\x23\x73\x68\x69\x70", "\x73\x6C\x6F\x77", "\x66\x61\x64\x65\x49\x6E", "\x62\x61\x63\x6B\x67\x72\x6F\x75\x6E\x64\x2D\x70\x6F\x73\x69\x74\x69\x6F\x6E", "\x35\x30\x25\x20", "\x64\x69\x76\x23\x74\x75\x6E\x6E\x65\x6C", "\x72\x61\x6E\x64\x6F\x6D", "\x66\x6C\x6F\x6F\x72", "\x75\x70\x64\x61\x74\x65\x54\x75\x6E\x6E\x65\x6C\x28\x29", "\x66\x61\x64\x65\x4F\x75\x74", "\x50\x4F\x53\x54", "\x68\x69\x67\x68\x2D\x73\x63\x6F\x72\x65\x73\x2E\x70\x68\x70", "\x74\x6F\x6B\x65\x6E\x3D", "\x26\x73\x63\x6F\x72\x65\x3D", "\x61\x6A\x61\x78", "\x68\x74\x6D\x6C", "\x70\x23\x77\x65\x6C\x63\x6F\x6D\x65", "\x75\x70\x64\x61\x74\x65\x54\x6F\x6B\x65\x6E\x28\x29", "\x74\x68\x78\x2C\x20\x43\x68\x72\x69\x73\x74\x69\x61\x6E\x20\x4D\x6F\x6E\x74\x6F\x79\x61", "\x6D\x6F\x75\x73\x65\x6F\x76\x65\x72", "\x23\x63\x68\x72\x69\x73\x74\x69\x61\x6E", "\x6D\x6F\x75\x73\x65\x6F\x75\x74", "\x72\x65\x61\x64\x79", "\x43\x68\x72\x69\x73\x74\x69\x61\x6E\x20\x4D\x6F\x6E\x74\x6F\x79\x61", "\x70\x61\x67\x65\x58", "\x6D\x6F\x75\x73\x65\x6D\x6F\x76\x65", "\x74\x6F\x6B\x65\x6E\x2E\x70\x68\x70", "\x67\x65\x74"];
function secureGame() {
    var _0x8618x2 = this;
    var _0x8618x3 = true;
    function _0x8618x4() {
        _0x8618x3 = false;
        return true
    };
    function _0x8618x5() {
        return _0x8618x3
    };
    this[_0x32bb[0]] = function () {
        _0x8618x4();
        return true
    };
    this[_0x32bb[1]] = function () {
        return _0x8618x5()
    };
    var _0x8618x6 = 0;
    function _0x8618x7() {
        return _0x8618x6
    };
    function _0x8618x8() {
        if (_0x8618x3) {
            _0x8618x6++
        };
        return true
    };
    this[_0x32bb[2]] = function () {
        return _0x8618x7()
    };
    this[_0x32bb[3]] = function () {
        _0x8618x8();
        return true
    };
    var _0x8618x9 = 320;
    function _0x8618xa() {
        _0x8618x9 -= 20;
        return true
    };
    function _0x8618xb() {
        return _0x8618x9
    };
    this[_0x32bb[4]] = function () {
        _0x8618xa();
        return true
    };
    this[_0x32bb[5]] = function () {
        return _0x8618xb()
    }
};
var bg_val = 0;
var rail_left = 0;
var rail_right = 500;
var ship_x = 234;
var pos_x = 234;
var c_s = 0;
var c_r = 0;
var c_w = 0;
var t_state = 0;
left_wall = new Array(20);
right_wall = new Array(20);
function initTunnel() {
    BTunnelGame = new secureGame();
    if (_0x32bb[6] == typeof console) {
        console[_0x32bb[8]](_0x32bb[7])
    };
    rail_left = document[_0x32bb[11]](_0x32bb[10])[_0x32bb[9]];
    rail_right += rail_left;
    y = 0;
    for (y = 0; y < 20; y++) {
        left_wall[y] = 80;
        right_wall[y] = 400
    };
    $(_0x32bb[19])[_0x32bb[18]](function (_0x8618x16) {
        y = _0x8618x16 * 25;
        $(this)[_0x32bb[15]](_0x32bb[12], _0x32bb[13] + y + _0x32bb[14]);
        $(this)[_0x32bb[15]](_0x32bb[16], _0x32bb[17])
    });
    $(_0x32bb[20])[_0x32bb[18]](function (_0x8618x16) {
        y = _0x8618x16 * 25;
        $(this)[_0x32bb[15]](_0x32bb[12], _0x32bb[13] + y + _0x32bb[14]);
        $(this)[_0x32bb[15]](_0x32bb[16], _0x32bb[17])
    });
    $(_0x32bb[25])[_0x32bb[26]](function () {
        $(_0x32bb[23])[_0x32bb[22]](_0x32bb[21]);
        $(_0x32bb[25])[_0x32bb[15]](_0x32bb[16], _0x32bb[24]);
        restartTunnel();
        updateTunnel()
    })
};
function restartTunnel() {
    BTunnelGame = new secureGame();
    if (_0x32bb[6] == typeof console) {
        console[_0x32bb[8]](_0x32bb[7])
    };
    ship_x = 234;
    c_s = 0;
    c_r = 0;
    c_w = 0;
    $(_0x32bb[28])[_0x32bb[27]](_0x32bb[13] + 0);
    $(_0x32bb[30])[_0x32bb[15]](_0x32bb[29], ship_x + _0x32bb[14]);
    y = 0;
    for (y = 0; y < 20; y++) {
        left_wall[y] = 80;
        right_wall[y] = 400
    };
    $(_0x32bb[30])[_0x32bb[32]](_0x32bb[31]);
    $(_0x32bb[19])[_0x32bb[18]](function (_0x8618x16) {
        y = _0x8618x16 * 25;
        $(this)[_0x32bb[15]](_0x32bb[12], _0x32bb[13] + y + _0x32bb[14]);
        $(this)[_0x32bb[15]](_0x32bb[16], _0x32bb[17])
    });
    $(_0x32bb[20])[_0x32bb[18]](function (_0x8618x16) {
        y = _0x8618x16 * 25;
        $(this)[_0x32bb[15]](_0x32bb[12], _0x32bb[13] + y + _0x32bb[14]);
        $(this)[_0x32bb[15]](_0x32bb[16], _0x32bb[17])
    })
};
function updateTunnel() {
    bg_val = bg_val + 2;
    if (bg_val > 20) {
        bg_val = 0
    };
    $(_0x32bb[35])[_0x32bb[15]](_0x32bb[33], _0x32bb[34] + bg_val + _0x32bb[14]);
    if (ship_x + 32 < 500) {
        if (ship_x + 46 < pos_x) {
            ship_x += 4
        } else {
            if (ship_x + 16 < pos_x) {
                ship_x += 2
            }
        }
    };
    if (ship_x > 0) {
        if (ship_x - 14 > pos_x) {
            ship_x -= 4
        } else {
            if (ship_x + 16 > pos_x) {
                ship_x -= 2
            }
        }
    };
    $(_0x32bb[30])[_0x32bb[15]](_0x32bb[29], ship_x + _0x32bb[14]);
    c_r++;
    if (c_r > 60) {
        c_r = 0;
        t_state = Math[_0x32bb[37]](Math[_0x32bb[36]]() * 2)
    };
    if (left_wall[0] < 10) {
        t_state = 1
    } else {
        if (right_wall[0] > 470) {
            t_state = 0
        }
    };
    y = 0;
    for (y = 20; y > 0; y--) {
        left_wall[y] = left_wall[y - 1];
        right_wall[y] = right_wall[y - 1]
    };
    if (t_state == 0) {
        left_wall[0] -= 3
    };
    if (t_state == 1) {
        left_wall[0] += 3
    };
    right_wall[0] = left_wall[0] + BTunnelGame[_0x32bb[5]]();
    $(_0x32bb[19])[_0x32bb[18]](function (_0x8618x16) {
        $(this)[_0x32bb[15]](_0x32bb[29], _0x32bb[13] + left_wall[_0x8618x16] + _0x32bb[14])
    });
    $(_0x32bb[20])[_0x32bb[18]](function (_0x8618x16) {
        $(this)[_0x32bb[15]](_0x32bb[29], _0x32bb[13] + right_wall[_0x8618x16] + _0x32bb[14])
    });
    if (BTunnelGame[_0x32bb[5]]() >= 120) {
        c_w++;
        if (c_w > 100) {
            c_w = 0;
            BTunnelGame[_0x32bb[4]]();
            left_wall[0] += 10
        }
    };
    c_s++;
    if (c_s > 20) {
        c_s = 0;
        BTunnelGame.BincScore();
        $(_0x32bb[28])[_0x32bb[27]](_0x32bb[13] + BTunnelGame[_0x32bb[2]]())
    };
    if (ship_x <= left_wall[18] + 20 || ship_x + 32 >= right_wall[18]) {
        BTunnelGame[_0x32bb[0]]()
    };
    if (BTunnelGame[_0x32bb[1]]()) {
        setTimeout(_0x32bb[38], 10)
    } else {
        $(_0x32bb[30])[_0x32bb[39]](_0x32bb[31]);
        $(_0x32bb[19])[_0x32bb[15]](_0x32bb[16], _0x32bb[24]);
        $(_0x32bb[20])[_0x32bb[15]](_0x32bb[16], _0x32bb[24]);
        $[_0x32bb[44]]({
            type: _0x32bb[40],
            url: _0x32bb[41],
            data: _0x32bb[42] + token + _0x32bb[43] + BTunnelGame[_0x32bb[2]](),
            success: function (_0x8618x19) {
                showHighScores(_0x8618x19)
            }
        })
    }
};
function scoreUpdate() {
    return
};
function showHighScores(_0x8618x19) {
    $(_0x32bb[25])[_0x32bb[45]](_0x8618x19);
    $(_0x32bb[25])[_0x32bb[15]](_0x32bb[16], _0x32bb[17])
};
$(document)[_0x32bb[52]](function () {
    $(_0x32bb[46])[_0x32bb[15]](_0x32bb[16], _0x32bb[17]);
    updateToken();
    setInterval(_0x32bb[47], 10000);
    $(_0x32bb[46])[_0x32bb[26]](function () {
        $(_0x32bb[46])[_0x32bb[15]](_0x32bb[16], _0x32bb[24]);
        initTunnel();
        updateTunnel()
    });
    $(_0x32bb[50])[_0x32bb[49]](function () {
        $(this)[_0x32bb[45]](_0x32bb[48])
    });
    $(_0x32bb[50])[_0x32bb[51]](function () {
        $(this)[_0x32bb[45]](temp)
    })
});
var temp = _0x32bb[53];
$(document)[_0x32bb[55]](function (_0x8618x1d) {
    pos_x = _0x8618x1d[_0x32bb[54]] - rail_left
});
var token = _0x32bb[13];
function updateToken() {
    $[_0x32bb[57]](_0x32bb[56], function (_0x8618x20) {
        token = _0x8618x20
    })
};

 

 

 

 

 

    if (BTunnelGame[_0x32bb[1]]()) {
        setTimeout(_0x32bb[38], 10)
    } else {
        $(_0x32bb[30])[_0x32bb[39]](_0x32bb[31]);
        $(_0x32bb[19])[_0x32bb[15]](_0x32bb[16], _0x32bb[24]);
        $(_0x32bb[20])[_0x32bb[15]](_0x32bb[16], _0x32bb[24]);
        $[_0x32bb[44]]({
            type: _0x32bb[40],
            url: _0x32bb[41],
            data: _0x32bb[42] + token + _0x32bb[43] + BTunnelGame[_0x32bb[2]](),
            success: function (_0x8618x19) {
                showHighScores(_0x8618x19)
            }
        })
    }

 

점수와 관련된 코드를 찾았다.

 

언팩한 코드를 개발자 도구>콘솔 을 이용해서 재정의 한 뒤, 게임을 한 판 하고 변수의 내용을 확인해 보았다.

 

 

 

 

 

BtunnelGame[_0x32bb[2]]() 함수가 점수를 반환하는 함수임을 알 수 있다.

 

 

 

따라서 해당 함수 대신에 "31337"을 넣어서 js코드 재정의 후

 

게임을 하면, 점수를 전송하는 페이지에 점수가 31337로 들어가게 되고, key를 얻을 수 있게 된다.