新手破解练习Crackme160之053 - egis.2（一样很难）

1. 脱壳, 与上一个程序是同一个作者, 在window10下脱壳失败, 在xp下成功了, 用PEiD的通用脱壳器,

2. 暴力破解, OD加载搜索关键字定位到004023BD, 找到方法入口下的第一个关键跳004020BB改为jmp 004023B7直接跳到成功分支, 保存, 搞定~

3. 正常破解, 算法复杂, 放弃~

附上大佬的注册机代码：（未测试过）

#include <array>
#include "NTL/ZZ.h"              // 用了 NTL 库
#include "NTL/vec_GF2.h"
#include "NTL/mat_GF2.h"

using namespace NTL;

const std::array<const unsigned char, 256> addr_0x41c2c0 = {
    0x35, 0xEF, 0xCF, 0x0B, 0x6B, 0xDE, 0x9F, 0x17, 0x98, 0xE7, 0xE7, 0xC5, 0xAC, 0x79, 0x7F, 0x5E,
    0x59, 0xF3, 0xFE, 0xBC, 0xB7, 0xC6, 0xFD, 0xF9, 0x6A, 0xAD, 0xFB, 0x73, 0xD6, 0xBC, 0x3F, 0x2F,
    0xD5, 0x5A, 0xF7, 0xE7, 0xAF, 0x95, 0xEE, 0x4F, 0x5E, 0x2B, 0xDD, 0x9F, 0x76, 0xCD, 0x74, 0xFF,
    0xB9, 0x76, 0xBA, 0xBF, 0xE8, 0xBA, 0xE9, 0x7E, 0xD1, 0x75, 0xD3, 0xFD, 0x4E, 0x97, 0x4D, 0xF7,
    0xA7, 0xCB, 0xA6, 0x7B, 0x99, 0x0E, 0x9B, 0x6E, 0x32, 0x1D, 0x36, 0xDD, 0x60, 0x1A, 0x6C, 0x3A,
    0xC0, 0x34, 0xD8, 0x74, 0x81, 0x69, 0xB0, 0xE9, 0x06, 0xF3, 0x60, 0x53, 0x0C, 0xE6, 0xC1, 0xA6,
    0x1D, 0xEC, 0x83, 0xCD, 0x3F, 0xF8, 0x07, 0x1B, 0x7E, 0xF0, 0x0F, 0x36, 0xFD, 0xE0, 0x1F, 0x6C,
    0xFA, 0xC1, 0x3F, 0xD8, 0xF0, 0xA3, 0x7F, 0x30, 0xE1, 0x47, 0xFF, 0x60, 0xC2, 0x8F, 0xFE, 0xC1,
    0x80, 0x3F, 0xFD, 0x03, 0x02, 0xFE, 0xF4, 0x0F, 0x01, 0x7F, 0xFA, 0x07, 0x04, 0xFC, 0xE9, 0x1F,
    0x08, 0xF8, 0xD3, 0x3F, 0x10, 0xF0, 0xA7, 0x7F, 0x47, 0xE0, 0x9F, 0x7E, 0x8E, 0xC0, 0x3F, 0xFD,
    0x21, 0xE0, 0x4F, 0xFF, 0x32, 0x42, 0xFF, 0xF4, 0x19, 0xA1, 0x7F, 0x7A, 0xC3, 0x48, 0xFD, 0xD3,
    0x83, 0xB1, 0xFA, 0x27, 0x06, 0x63, 0xF5, 0x4F, 0x0D, 0xC6, 0xEA, 0x9F, 0x61, 0xA4, 0xFE, 0x69,
    0x1E, 0xAC, 0xD5, 0xBF, 0x39, 0x78, 0xAB, 0xFF, 0x76, 0xD0, 0x56, 0x7F, 0xED, 0xA0, 0xAD, 0xFE,
    0xDE, 0x61, 0x5B, 0x7D, 0xBC, 0xC3, 0xB6, 0xFA, 0x7D, 0xA7, 0x6D, 0x75, 0xFA, 0x4E, 0xDB, 0xEA,
    0x80, 0x8F, 0xB5, 0x2D, 0x00, 0x1F, 0x6B, 0x5B, 0x01, 0x3E, 0xD6, 0xB6, 0xF1, 0xBD, 0xB6, 0x55,
    0xE3, 0x7B, 0x6D, 0xAB, 0xC2, 0xD7, 0xDA, 0xD6, 0x08, 0x98, 0x58, 0x5B, 0x06, 0x5C, 0xAC, 0xED,
};

const std::array<const unsigned char, 256> addr_0x41c3c0 = {
    0x49, 0x13, 0x4D, 0x9B, 0x92, 0x26, 0x9A, 0x36, 0xA4, 0x89, 0xA6, 0xCD, 0x48, 0x9A, 0x68, 0xDA,
    0x90, 0x34, 0xD1, 0xB4, 0x21, 0x69, 0xA2, 0x69, 0x43, 0xD2, 0x44, 0xD3, 0x24, 0x4D, 0x34, 0x6D,
    0x86, 0xA4, 0x89, 0xA6, 0x0D, 0x49, 0x13, 0x4D, 0x1A, 0x92, 0x26, 0x9A, 0x6B, 0x48, 0x9A, 0x68,
    0x35, 0x24, 0x4D, 0x34, 0xD7, 0x90, 0x34, 0xD1, 0xAE, 0x21, 0x69, 0xA2, 0xBA, 0x86, 0xA4, 0x89,
    0x5D, 0x43, 0xD2, 0x44, 0x75, 0x0D, 0x49, 0x13, 0xEA, 0x1A, 0x92, 0x26, 0xD5, 0x35, 0x24, 0x4D,
    0xAA, 0x6B, 0x48, 0x9A, 0x54, 0xD7, 0x90, 0x34, 0xA9, 0xAE, 0x21, 0x69, 0x52, 0x5D, 0x43, 0xD2,
    0xA5, 0xBA, 0x86, 0xA4, 0x4B, 0x75, 0x0D, 0x49, 0x96, 0xEA, 0x1A, 0x92, 0x2C, 0xD5, 0x35, 0x24,
    0x58, 0xAA, 0x6B, 0x48, 0xB1, 0x54, 0xD7, 0x90, 0x62, 0xA9, 0xAE, 0x21, 0xC4, 0x52, 0x5D, 0x43,
    0x89, 0xA5, 0xBA, 0x86, 0x24, 0x96, 0xEA, 0x1A, 0x12, 0x4B, 0x75, 0x0D, 0x48, 0x2C, 0xD5, 0x35,
    0x90, 0x58, 0xAA, 0x6B, 0x20, 0xB1, 0x54, 0xD7, 0x81, 0xC4, 0x52, 0x5D, 0x02, 0x89, 0xA5, 0xBA,
    0x40, 0x62, 0xA9, 0xAE, 0x0A, 0x24, 0x96, 0xEA, 0x05, 0x12, 0x4B, 0x75, 0x2A, 0x90, 0x58, 0xAA,
    0x55, 0x20, 0xB1, 0x54, 0xAA, 0x40, 0x62, 0xA9, 0x54, 0x81, 0xC4, 0x52, 0x15, 0x48, 0x2C, 0xD5,
    0xA9, 0x02, 0x89, 0xA5, 0x53, 0x05, 0x12, 0x4B, 0xA7, 0x0A, 0x24, 0x96, 0x4E, 0x15, 0x48, 0x2C,
    0x9D, 0x2A, 0x90, 0x58, 0x3A, 0x55, 0x20, 0xB1, 0x75, 0xAA, 0x40, 0x62, 0xEA, 0x54, 0x81, 0xC4,
    0xAB, 0x4E, 0x15, 0x48, 0x56, 0x9D, 0x2A, 0x90, 0xAC, 0x3A, 0x55, 0x20, 0xD5, 0xA9, 0x02, 0x89,
    0xAA, 0x53, 0x05, 0x12, 0x55, 0xA7, 0x0A, 0x24, 0xB3, 0xEA, 0x54, 0x81, 0x59, 0x75, 0xAA, 0x40,
};

const std::array<const unsigned char, 256> addr_0x41c4c0 = {
    0xF5, 0xE7, 0x10, 0xAE, 0xB6, 0xFF, 0x87, 0x70, 0x6D, 0xFF, 0x0F, 0xE1, 0xDF, 0xDE, 0x1F, 0x42,
    0xBF, 0xBD, 0x3F, 0x84, 0xEF, 0xEF, 0x21, 0xDC, 0xDB, 0xFF, 0x43, 0x38, 0x7B, 0x5B, 0x7F, 0x88,
    0xF3, 0x96, 0xFE, 0x90, 0x82, 0x57, 0xF4, 0x07, 0x04, 0xAF, 0xE8, 0x0F, 0xE3, 0x0D, 0xFD, 0xA1,
    0xC3, 0x3B, 0xFA, 0xC3, 0x4F, 0xF0, 0x8A, 0xFE, 0x9B, 0xC0, 0x15, 0x7D, 0x27, 0x78, 0x45, 0x7F,
    0x09, 0x5E, 0xD1, 0x1F, 0x13, 0xBC, 0xA2, 0x3F, 0x36, 0x81, 0x2B, 0xFA, 0x68, 0x22, 0x57, 0x74,
    0x45, 0x5A, 0xCA, 0x15, 0x93, 0x86, 0x72, 0xC5, 0xA5, 0xA9, 0x5C, 0x51, 0x4B, 0x53, 0xB9, 0xA2,
    0x22, 0x2D, 0xE5, 0x0A, 0xD0, 0x44, 0xAE, 0xE8, 0x5F, 0x84, 0xA5, 0xDC, 0xBB, 0x28, 0x4B, 0x39,
    0x77, 0x51, 0x96, 0x72, 0x8B, 0xB4, 0x94, 0x2B, 0x16, 0x69, 0x29, 0x57, 0x2D, 0xD2, 0x52, 0xAE,
    0xEF, 0xA2, 0x2C, 0xE5, 0xDB, 0x65, 0x59, 0x4A, 0xB7, 0xCB, 0xB2, 0x94, 0x6A, 0xB7, 0x65, 0xA9,
    0xA5, 0xBD, 0x96, 0x25, 0x4A, 0x7B, 0x2D, 0x4B, 0x95, 0xF6, 0x5A, 0x96, 0x2F, 0xCD, 0xB5, 0xAC,
    0x5B, 0xBA, 0x6B, 0xD9, 0xB3, 0x54, 0xD7, 0x32, 0xD0, 0x4E, 0xCB, 0xD2, 0x67, 0xA9, 0xAE, 0x65,
    0xCE, 0x52, 0x5D, 0xCB, 0x30, 0x0B, 0x75, 0x2D, 0x98, 0x85, 0xBA, 0x16, 0x60, 0x16, 0xEA, 0x5A,
    0xC0, 0x2C, 0xD4, 0xB5, 0x0E, 0xD3, 0x50, 0x57, 0x1D, 0xA6, 0xA1, 0xAE, 0x3E, 0x6C, 0x43, 0xDD,
    0x79, 0xF8, 0x86, 0x3A, 0xF2, 0xF0, 0x0D, 0x75, 0xE5, 0xE1, 0x1B, 0xEA, 0xCF, 0xE3, 0x37, 0x54,
    0x85, 0x79, 0xA8, 0xEB, 0x74, 0x7E, 0xBF, 0x21, 0xE8, 0xFC, 0x7E, 0x43, 0x9E, 0xC7, 0x6F, 0xA8,
    0x38, 0xAF, 0xDF, 0xD0, 0xD1, 0xF9, 0xFD, 0x86, 0xA7, 0xD3, 0xFB, 0x8D, 0x4A, 0x87, 0xF7, 0x9B
};

const std::array<const unsigned char, 256> addr_0x41c5c0 = {
    0xDF, 0x8E, 0xCF, 0xDF, 0xFE, 0x76, 0x7C, 0xFE, 0xFC, 0xED, 0xF8, 0xFC, 0xF9, 0xDB, 0xF1, 0xF9,
    0xF2, 0xB7, 0xE3, 0xF3, 0xBF, 0x1D, 0x9F, 0xBF, 0x7F, 0x3B, 0x3E, 0x7F, 0xE5, 0x6F, 0xC7, 0xE7,
    0xCB, 0xDF, 0x8E, 0xCF, 0x5F, 0xFE, 0x76, 0x7C, 0xBE, 0xFC, 0xED, 0xF8, 0x97, 0xBF, 0x1D, 0x9F,
    0x2F, 0x7F, 0x3B, 0x3E, 0xE0, 0xCB, 0xDF, 0x8E, 0xC1, 0x97, 0xBF, 0x1D, 0xF0, 0xE5, 0x6F, 0xC7,
    0x7C, 0xF9, 0xDB, 0xF1, 0xF8, 0xF2, 0xB7, 0xE3, 0x82, 0x2F, 0x7F, 0x3B, 0x05, 0x5F, 0xFE, 0x76,
    0x56, 0xC1, 0x97, 0xBF, 0x55, 0xF0, 0xE5, 0x6F, 0x15, 0x7C, 0xF9, 0xDB, 0x2A, 0xF8, 0xF2, 0xB7,
    0xAB, 0xE0, 0xCB, 0xDF, 0x0A, 0xBE, 0xFC, 0xED, 0x61, 0x15, 0x7C, 0xF9, 0xC3, 0x2A, 0xF8, 0xF2,
    0x86, 0x55, 0xF0, 0xE5, 0xAC, 0x82, 0x2F, 0x7F, 0x58, 0x05, 0x5F, 0xFE, 0xB0, 0x0A, 0xBE, 0xFC,
    0x0C, 0xAB, 0xE0, 0xCB, 0x19, 0x56, 0xC1, 0x97, 0x32, 0xAC, 0x82, 0x2F, 0x65, 0x58, 0x05, 0x5F,
    0x97, 0x61, 0x15, 0x7C, 0x2E, 0xC3, 0x2A, 0xF8, 0x5C, 0x86, 0x55, 0xF0, 0xB9, 0x0C, 0xAB, 0xE0,
    0x73, 0x19, 0x56, 0xC1, 0xE7, 0x32, 0xAC, 0x82, 0xCB, 0xB0, 0x0A, 0xBE, 0xCE, 0x65, 0x58, 0x05,
    0x9C, 0xCB, 0xB0, 0x0A, 0x72, 0x2E, 0xC3, 0x2A, 0x39, 0x97, 0x61, 0x15, 0xE4, 0x5C, 0x86, 0x55,
    0xC8, 0xB9, 0x0C, 0xAB, 0x23, 0xE7, 0x32, 0xAC, 0x46, 0xCE, 0x65, 0x58, 0x8D, 0x9C, 0xCB, 0xB0,
    0x1B, 0x39, 0x97, 0x61, 0x36, 0x72, 0x2E, 0xC3, 0x6C, 0xE4, 0x5C, 0x86, 0xD9, 0xC8, 0xB9, 0x0C,
    0x91, 0x73, 0x19, 0x56, 0xCB, 0x46, 0xCE, 0x65, 0x96, 0x8D, 0x9C, 0xCB, 0xB2, 0x91, 0x73, 0x19,
    0x65, 0x23, 0xE7, 0x32, 0x2C, 0x1B, 0x39, 0x97, 0x59, 0x36, 0x72, 0x2E, 0xB3, 0x6C, 0xE4, 0x5C
};

void fill_mat(mat_GF2& dst, unsigned long* t1, unsigned long* t2)
{
    for (int i = 0; i < 64; ++i)
    {
        auto tmp = t1[i];
        for (int k = 0; k < 32; ++k)
        {
            dst[k][i] = !!(tmp & 0x80000000);
            tmp <<= 1;
        }

        tmp = t2[i];
        for (int k = 32; k < 64; ++k)
        {
            dst[k][i] = !!(tmp & 0x80000000);
            tmp <<= 1;
        }
    }
}

unsigned long long vec_2_int(vec_GF2& src, int from, int to)
{
    unsigned long long ret = 0;
    for (int i = from; i < to; ++i)
    {
        ret = (ret << 1) | (unsigned long long)to_int(rep(src[i]));
    }
    return ret;
}


int collapse(int argc, char** argv)
{
    // key 是用户名经过 hash 计算得到的前三个，这里替换掉
    unsigned int key[3] = { 0x83bb467a, 0x82023fba, 0xadd52abe };
    unsigned int answer[3] = { 0,0,0 };

    GF2     d;
    vec_GF2 x, vec_key;
    mat_GF2 m1, m2;

    m1.SetDims(64, 64);
    m2.SetDims(64, 64);
    x.SetLength(64);
    vec_key.SetLength(64);

    fill_mat(m1, (unsigned long*)addr_0x41c4c0.data(), (unsigned long*)addr_0x41c5c0.data());

    for (int i = 0; i < 32; ++i)
    {
        vec_key[i] = !!((key[1] << i) & 0x80000000);
        vec_key[i + 32] = !!((key[2] << i) & 0x80000000);
    }

    solve(d, x, m1, vec_key);    // 计算 x * A = b 中的 x， m1 = A，vec_key = b
    answer[2] = vec_2_int(x, 32, 64, 31);

    for (int i = 0; i < 32; ++i)
    {
        vec_key[i] = !!((key[0] << i) & 0x80000000);
        vec_key[i + 32] = x[i];
    }

    fill_mat(m2, (unsigned long*)addr_0x41c2c0.data(), (unsigned long*)addr_0x41c3c0.data());

    solve(d, x, m2, vec_key);
    answer[1] = vec_2_int(x, 32, 64, 31);
    answer[0] = vec_2_int(x, 0, 32, 31);

    return 0;
}

这是160个软件part1
这是160个软件part2

1~160每个破解过程,在吾爱破解论坛都有高手破解过了,也有整理好现成的, 我这边主要就是自己动手操作的过程,与他们的不太一样
附上高手们的连接: 点击前往查看
使用的工具连接(工具有点多有点大,可以先下OD,其它的后面慢慢下) 点击前往下载

新人入门教程"玩玩破解，写给新人看" 点击前往查看
我就是从这里开始的,对我这样的小白感觉超级友好~

下面是我的OD的界面布局,我觉得这4个是最常用的界面,其它的我基本上没用到~