[原创]Easy Autorun Creator V2.0 的注册-软件逆向-看雪-安全社区|安全招聘|kanxue.com

[原创]Easy Autorun Creator V2.0 的注册

发表于: 2006-1-22 09:36 6535

[原创]Easy Autorun Creator V2.0 的注册

wenglingok 活跃值

2006-1-22 09:36

6535

【破文作者】 rdsnow[BCG][PYG][D.4s]
【作者主页】 http://rdsnow.ys168.com
【 E-mail 】 [email]rdsnow@163.com[/email]
【作者QQ 】 83757177
【文章题目】 Easy Autorun Creator V2.0 的注册
【软件名称】 Easy Autorun Creator2.0
【下载地址】 http://www.aw-software.com/

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【加密方式】序列号
【破解工具】 ODbyDYK v1.10[05.09]
【软件限制】功能限制
【破解平台】 Microsoft Windows XP Professional
【平台版本】 5.1.2600 Service Pack 2 内部版本号 2600

----------------------------------------------------------------------------------------
【软件简介】

* Automatic CD menu creation
* Template support
* Autorun wizard
* Easy-to-use interface
* Disk compatibility with Windows XP, Me, 98, NT, 2003

【文章简介】

看到这个程序有汉化版下载，就下了一个，Scan with PeiD 0.94 ，无壳，可能是被汉化的脱掉了，Borland Delphi 6.0 - 7.0编译。算法比较简单，高手略过。

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【破解过程】

因为有错误的对话框，所以下断 Bp MessageBoxA ，单步到程序领空，很容易找到程序比较的地方。典型的明码比较。

0050708B .  68 F6735000 PUSH Easy_Aut.005073F6
00507090 .  64:FF30    PUSH DWORD PTR FS:[EAX]
00507093 .  64:8920    MOV DWORD PTR FS:[EAX],ESP
00507096 .  8D55 F0    LEA EDX,DWORD PTR SS:[EBP-10]
00507099 .  8B83 1C030000 MOV EAX,DWORD PTR DS:[EBX+31C]
0050709F .  E8 CCC8F5FF CALL Easy_Aut.00463970             ;  取 Email
005070A4 .  837D F0 00 CMP DWORD PTR SS:[EBP-10],0
005070A8 .  0F84 F0020000 JE Easy_Aut.0050739E                ;  没有输入就跳
005070AE .  8D55 EC    LEA EDX,DWORD PTR SS:[EBP-14]
005070B1 .  8B83 1C030000 MOV EAX,DWORD PTR DS:[EBX+31C]
005070B7 .  E8 B4C8F5FF CALL Easy_Aut.00463970             ;  取 Email
005070BC .  8B45 EC    MOV EAX,DWORD PTR SS:[EBP-14]
005070BF .  BA 0C745000 MOV EDX,Easy_Aut.0050740C          ;  ASCII "inf@hot.com"(黑名单)
005070C4 .  E8 23D7EFFF CALL Easy_Aut.004047EC
005070C9 .  0F84 CF020000 JE Easy_Aut.0050739E
005070CF .  8D55 E8    LEA EDX,DWORD PTR SS:[EBP-18]
005070D2 .  8B83 1C030000 MOV EAX,DWORD PTR DS:[EBX+31C]
005070D8 .  E8 93C8F5FF CALL Easy_Aut.00463970             ;  取 Email
005070DD .  8B45 E8    MOV EAX,DWORD PTR SS:[EBP-18]
005070E0 .  BA 20745000 MOV EDX,Easy_Aut.00507420          ;  ASCII "TEAM DVT"(黑名单)
0050718A .  E8 5DD6EFFF CALL Easy_Aut.004047EC
0050718F .  0F84 09020000 JE Easy_Aut.0050739E
……………………                                                 ;  省略二十几个黑名单
00507195 .  8D45 F4    LEA EAX,DWORD PTR SS:[EBP-C]
00507198 .  BA AC745000 MOV EDX,Easy_Aut.005074AC          ;  ASCII "AW Software"(黑名单)
0050719D .  E8 D6D2EFFF CALL Easy_Aut.00404478
005071A2 .  8B0D B8345100 MOV ECX,DWORD PTR DS:[5134B8]       ;  Easy_Aut.00516134
005071A8 .  8B09       MOV ECX,DWORD PTR DS:[ECX]
005071AA .  B2 01       MOV DL,1
005071AC .  A1 C8284C00 MOV EAX,DWORD PTR DS:[4C28C8]
005071B1 .  E8 12A1FBFF CALL Easy_Aut.004C12C8
005071B6 .  8945 F8    MOV DWORD PTR SS:[EBP-8],EAX
005071B9 .  8B0D 70134C00 MOV ECX,DWORD PTR DS:[4C1370]       ;  Easy_Aut.004C13BC
005071BF .  8B55 F4    MOV EDX,DWORD PTR SS:[EBP-C]
005071C2 .  8B45 F8    MOV EAX,DWORD PTR SS:[EBP-8]
005071C5 .  E8 E29EFBFF CALL Easy_Aut.004C10AC
005071CA .  8D55 D0    LEA EDX,DWORD PTR SS:[EBP-30]
005071CD .  8B83 20030000 MOV EAX,DWORD PTR DS:[EBX+320]
005071D3 .  E8 98C7F5FF CALL Easy_Aut.00463970             ;  取假码
005071D8 .  8B45 D0    MOV EAX,DWORD PTR SS:[EBP-30]
005071DB .  50          PUSH EAX
005071DC .  8D55 C8    LEA EDX,DWORD PTR SS:[EBP-38]
005071DF .  8B83 1C030000 MOV EAX,DWORD PTR DS:[EBX+31C]
005071E5 .  E8 86C7F5FF CALL Easy_Aut.00463970             ;  取 Email
005071EA .  8B55 C8    MOV EDX,DWORD PTR SS:[EBP-38]
005071ED .  8D4D CC    LEA ECX,DWORD PTR SS:[EBP-34]
005071F0 .  8B45 F8    MOV EAX,DWORD PTR SS:[EBP-8]
005071F3 .  8B30       MOV ESI,DWORD PTR DS:[EAX]
005071F5 .  FF56 54    CALL DWORD PTR DS:[ESI+54]          ;  得到真码
005071F8 .  8B55 CC    MOV EDX,DWORD PTR SS:[EBP-34]
005071FB .  58          POP EAX
005071FC .  E8 EBD5EFFF CALL Easy_Aut.004047EC             ;  真码和假码比较
00507201 .  0F85 C1000000 JNZ Easy_Aut.005072C8
00507207 .  B8 C0745000 MOV EAX,Easy_Aut.005074C0
0050720C .  E8 9BFBF2FF CALL Easy_Aut.00436DAC

跟进
005071F5 .  FF56 54    CALL DWORD PTR DS:[ESI+54]          ;  得到真码
来到计算注册码的地方

004C120C  /.  55          PUSH EBP
004C120D  |.  8BEC       MOV EBP,ESP
004C120F  |.  6A 00       PUSH 0
004C1211  |.  53          PUSH EBX
004C1212  |.  56          PUSH ESI
……………………
004C124F  |.  8BD0       MOV EDX,EAX
004C1251  |.  8BC7       MOV EAX,EDI
004C1253  |.  59          POP ECX
004C1254  |.  8B30       MOV ESI,DWORD PTR DS:[EAX]
004C1256  |.  FF56 4C    CALL DWORD PTR DS:[ESI+4C]          ;  对 Email 进行预处理
004C1259  |.  8D55 FC    LEA EDX,DWORD PTR SS:[EBP-4]
004C125C  |.  8B03       MOV EAX,DWORD PTR DS:[EBX]
004C125E  |.  E8 C5F7FFFF CALL Easy_Aut.004C0A28             ;  预处理结果进行 base64 编码
004C1263  |.  8B55 FC    MOV EDX,DWORD PTR SS:[EBP-4]
004C1266  |.  8BC3       MOV EAX,EBX
……………………
004C1272  |.  64:8910    MOV DWORD PTR FS:[EAX],EDX
004C1275  |.  68 8A124C00 PUSH Easy_Aut.004C128A
004C127A  |>  8D45 FC    LEA EAX,DWORD PTR SS:[EBP-4]
004C127D  |.  E8 5E31F4FF CALL Easy_Aut.004043E0
004C1282  \.  C3          RETN

跟进
004C1256  |.  FF56 4C    CALL DWORD PTR DS:[ESI+4C]          ;  对 Email 进行预处理
看看对注册码的预处理

004C2D34  /.  55          PUSH EBP
004C2D35  |.  8BEC       MOV EBP,ESP
004C2D37  |.  83C4 F0    ADD ESP,-10
004C2D3A  |.  53          PUSH EBX
004C2D3B  |.  56          PUSH ESI
004C2D3C  |.  57          PUSH EDI
004C2D3D  |.  894D F8    MOV DWORD PTR SS:[EBP-8],ECX
004C2D40  |.  8955 FC    MOV DWORD PTR SS:[EBP-4],EDX
004C2D43  |.  8078 30 00 CMP BYTE PTR DS:[EAX+30],0
004C2D47  |.  75 16       JNZ SHORT Easy_Aut.004C2D5F
004C2D49  |.  B9 D82D4C00 MOV ECX,Easy_Aut.004C2DD8          ;  ASCII "Cipher not initialized"
004C2D4E  |.  B2 01       MOV DL,1
004C2D50  |.  A1 B40D4C00 MOV EAX,DWORD PTR DS:[4C0DB4]
004C2D55  |.  E8 5E9BF4FF CALL Easy_Aut.0040C8B8
004C2D5A  |.  E8 1910F4FF CALL Easy_Aut.00403D78
004C2D5F  |>  33C9       XOR ECX,ECX
004C2D61  |.  33D2       XOR EDX,EDX
004C2D63  |.  8B5D 08    MOV EBX,DWORD PTR SS:[EBP+8]
004C2D66  |.  4B          DEC EBX
004C2D67  |.  85DB       TEST EBX,EBX
004C2D69  |.  72 5A       JB SHORT Easy_Aut.004C2DC5
004C2D6B  |.  43          INC EBX
004C2D6C  |.  895D F0    MOV DWORD PTR SS:[EBP-10],EBX
004C2D6F  |.  C745 F4 0000> MOV DWORD PTR SS:[EBP-C],0
004C2D76  |>  41          / INC ECX
004C2D77  |.  81E1 FF000000 | AND ECX,0FF
004C2D7D  |.  0FB67408 34 | MOVZX ESI,BYTE PTR DS:[EAX+ECX+34] ;  取 SBox[i]
004C2D82  |.  8D1416       | LEA EDX,DWORD PTR DS:[ESI+EDX]    ;  n ＝ ( n + SBox[i] ) & 0xFF
004C2D85  |.  81E2 FF000000 | AND EDX,0FF
004C2D8B  |.  8A5C10 34    | MOV BL,BYTE PTR DS:[EAX+EDX+34]    ;  取 SBox[n]
004C2D8F  |.  885C08 34    | MOV BYTE PTR DS:[EAX+ECX+34],BL    ;  SBox[i] = SBox[n]
004C2D93  |.  8BDE       | MOV EBX,ESI
004C2D95  |.  885C10 34    | MOV BYTE PTR DS:[EAX+EDX+34],BL    ;  SBox[n] = SBox[i]，即交换 SBox[i] 和 SBox[n]
004C2D99  |.  33DB       | XOR EBX,EBX
004C2D9B  |.  8A5C08 34    | MOV BL,BYTE PTR DS:[EAX+ECX+34]
004C2D9F  |.  03F3       | ADD ESI,EBX                         ;  K = ( SBox[n] + SBox[i] ) & 0xFF
004C2DA1  |.  81E6 FF000000 | AND ESI,0FF
004C2DA7  |.  8B5D FC    | MOV EBX,DWORD PTR SS:[EBP-4]
004C2DAA  |.  8B7D F4    | MOV EDI,DWORD PTR SS:[EBP-C]
004C2DAD  |.  8A1C3B       | MOV BL,BYTE PTR DS:[EBX+EDI]       ;  取 Email[i]
004C2DB0  |.  325C30 34    | XOR BL,BYTE PTR DS:[EAX+ESI+34]    ;  取 Email[i] Xor SBox[K]
004C2DB4  |.  8B75 F8    | MOV ESI,DWORD PTR SS:[EBP-8]
004C2DB7  |.  8B7D F4    | MOV EDI,DWORD PTR SS:[EBP-C]
004C2DBA  |.  881C3E       | MOV BYTE PTR DS:[ESI+EDI],BL       ;  保存结果
004C2DBD  |.  FF45 F4    | INC DWORD PTR SS:[EBP-C]
004C2DC0  |.  FF4D F0    | DEC DWORD PTR SS:[EBP-10]
004C2DC3  |.^ 75 B1       \ JNZ SHORT Easy_Aut.004C2D76
004C2DC5  |>  5F          POP EDI
004C2DC6  |.  5E          POP ESI
004C2DC7  |.  5B          POP EBX
004C2DC8  |.  8BE5       MOV ESP,EBP
004C2DCA  |.  5D          POP EBP
004C2DCB  \.  C2 0400    RETN 4

----------------------------------------------------------------------------------------
【破解心得】

注册码的计算分两步进行，

一、先对输入的 Email 地址进行预先处理

对 Email 预变换的代码不多，加密过程大致是这样的，首先定义一个 byte 表 SBox[513]，使用一个 byte 变量 n 。SBox[513] 中预置了一些数据，对 Email 处理的同时对 SBox 中的数据进行变换。

*  i 从 1 开始循环，每次循环取 SBox[i] ，并且累加到 n 上

*  交换 SBox[i] 和 SBox[n]

*  求 SBox[i] 和 SBox[n] 的和

* 用求得的和去查 SBox 表

* 查表结果再跟 Email[i] 异或，并替换掉 Email[i]

* 等Email 中所有字符都被替换掉了，替换后的 Email 就是预处理结果

二、将预处理结果采用标准的 Base64 编码，就得到真码了。

【注册机源码】

void CKeygenDlg::OnChangeEdit1( )
{
      // TODO: If this is a RICHEDIT control, the control will not
      // send this notification unless you override the CDialog::OnInitDialog()
      // function and call CRichEditCtrl().SetEventMask()
      // with the ENM_CHANGE flag ORed into the mask.

      // TODO: Add your control notification handler code here


//从内存中复制的 SBox[513]

unsigned char SBox[513]={
0xA9,0x8A,0xEC,0x2B,0x4E,0x74,0x69,0xA6,0x88,0x99,0x2A,0x0A,0xCF,0x83,0x22,0xA3,
0xC1,0x6E,0xB0,0x5B,0xB3,0x38,0xE3,0x47,0x85,0x1C,0xB2,0xDC,0x6B,0x92,0xAB,0xF6,
0x2E,0x01,0x1F,0x18,0x17,0x8F,0x10,0xD3,0x53,0xDF,0xBF,0x90,0x7A,0x11,0xC2,0xB9,
0x02,0x5D,0x40,0xED,0x52,0x66,0x4D,0xA0,0xD1,0xE7,0x3F,0x7F,0xE0,0x7E,0x70,0xCB,
0x48,0x39,0x50,0xBA,0x1B,0x7D,0x4F,0x9B,0x57,0x72,0x9D,0x1E,0x9A,0x0F,0x29,0x59,
0x26,0xD9,0x77,0xC5,0xA1,0xFB,0x35,0xD2,0x4C,0x58,0x9E,0xBC,0xA2,0x79,0xD5,0xDD,
0xA7,0x65,0x96,0x84,0xE8,0xC6,0xBB,0x3B,0xF0,0x55,0x04,0x24,0xEF,0x43,0x75,0x23,
0x4A,0xEA,0xC7,0xC0,0xE9,0x00,0x08,0x4B,0x6C,0xDB,0x1A,0xFC,0xC3,0xE2,0x0E,0xAE,
0x1D,0xF9,0x2C,0xB8,0xB7,0x89,0xFA,0xAD,0x68,0xFE,0x8D,0x91,0x21,0x93,0xD4,0x46,
0x7C,0x87,0x19,0xB6,0x98,0xB5,0x2F,0xBE,0x56,0x16,0x03,0x80,0x0C,0x5A,0x49,0x6D,
0x95,0x28,0x0B,0x78,0xC9,0x97,0x61,0xCD,0x06,0x9C,0x13,0x45,0x41,0x6F,0xD8,0x5C,
0x62,0x5F,0x12,0x32,0x94,0xFF,0x73,0x8E,0xF7,0x60,0x0D,0x5E,0x09,0x64,0x30,0x37,
0xA5,0x82,0x54,0x36,0xB4,0x8B,0xD7,0x9F,0x81,0x2D,0x71,0x76,0x15,0x8C,0xDE,0xDA,
0xC8,0x33,0xE1,0x3A,0xD0,0xEB,0x3D,0xF4,0xF8,0x14,0x25,0x6A,0x3C,0x86,0xEE,0x07,
0x51,0x63,0x7B,0x20,0xE5,0xC4,0xE6,0xF3,0x34,0xFD,0xAF,0xAC,0xF1,0x67,0xCC,0xA8,
0xB1,0xCA,0xD6,0x42,0x27,0x44,0x3E,0xCE,0xBD,0x05,0xF2,0xE4,0xAA,0xF5,0xA4,0x31,
0xA9,0x8A,0xEC,0x2B,0x4E,0x74,0x69,0xA6,0x88,0x99,0x2A,0x0A,0xCF,0x83,0x22,0xA3,
0xC1,0x6E,0xB0,0x5B,0xB3,0x38,0xE3,0x47,0x85,0x1C,0xB2,0xDC,0x6B,0x92,0xAB,0xF6,
0x2E,0x01,0x1F,0x18,0x17,0x8F,0x10,0xD3,0x53,0xDF,0xBF,0x90,0x7A,0x11,0xC2,0xB9,
0x02,0x5D,0x40,0xED,0x52,0x66,0x4D,0xA0,0xD1,0xE7,0x3F,0x7F,0xE0,0x7E,0x70,0xCB,
0x48,0x39,0x50,0xBA,0x1B,0x7D,0x4F,0x9B,0x57,0x72,0x9D,0x1E,0x9A,0x0F,0x29,0x59,
0x26,0xD9,0x77,0xC5,0xA1,0xFB,0x35,0xD2,0x4C,0x58,0x9E,0xBC,0xA2,0x79,0xD5,0xDD,
0xA7,0x65,0x96,0x84,0xE8,0xC6,0xBB,0x3B,0xF0,0x55,0x04,0x24,0xEF,0x43,0x75,0x23,
0x4A,0xEA,0xC7,0xC0,0xE9,0x00,0x08,0x4B,0x6C,0xDB,0x1A,0xFC,0xC3,0xE2,0x0E,0xAE,
0x1D,0xF9,0x2C,0xB8,0xB7,0x89,0xFA,0xAD,0x68,0xFE,0x8D,0x91,0x21,0x93,0xD4,0x46,
0x7C,0x87,0x19,0xB6,0x98,0xB5,0x2F,0xBE,0x56,0x16,0x03,0x80,0x0C,0x5A,0x49,0x6D,
0x95,0x28,0x0B,0x78,0xC9,0x97,0x61,0xCD,0x06,0x9C,0x13,0x45,0x41,0x6F,0xD8,0x5C,
0x62,0x5F,0x12,0x32,0x94,0xFF,0x73,0x8E,0xF7,0x60,0x0D,0x5E,0x09,0x64,0x30,0x37,
0xA5,0x82,0x54,0x36,0xB4,0x8B,0xD7,0x9F,0x81,0x2D,0x71,0x76,0x15,0x8C,0xDE,0xDA,
0xC8,0x33,0xE1,0x3A,0xD0,0xEB,0x3D,0xF4,0xF8,0x14,0x25,0x6A,0x3C,0x86,0xEE,0x07,
0x51,0x63,0x7B,0x20,0xE5,0xC4,0xE6,0xF3,0x34,0xFD,0xAF,0xAC,0xF1,0x67,0xCC,0xA8,
0xB1,0xCA,0xD6,0x42,0x27,0x44,0x3E,0xCE,0xBD,0x05,0xF2,0xE4,0xAA,0xF5,0xA4,0x31,
0x26 } ;

      int i , j , EmailLength ;
      unsigned char n = 0 , k = 0 ;
      char Email[256] , SerialNummber[512] ;

      UpdateData (true) ;
      EmailLength = m_Edit1.GetLength () ;
      strcpy ( Email , m_Edit1 ) ;

      //预处理
      for ( i = 0 ; i < EmailLength ; i++ ) {
            j = i + 1 ;
            n += SBox [j] ;
            k = SBox [j] ;
            SBox[j] = SBox[n] ;
            SBox[n] = k ;
            k = SBox[j] + SBox[n] ;
            Email[i] ^= SBox[k] ;
      }

      //base64 编码
      memset ( SerialNummber , 0 , 512 ) ;
      base64_encode( Email , EmailLength , SerialNummber ) ;
      m_Edit2 = SerialNummber ;
      UpdateData (false) ;

}
----------------------------------------------------------------------------------------
【破解声明】我是一只小菜鸟，偶得一点心得，愿与大家分享:)

【版权声明】本文纯属技术交流, 转载请注明作者并保持文章的完整, 谢谢!
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                                                            文章写于2006-1-5 18:10:17

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wangshq397 雪币： 277 活跃值： (312) 能力值： ( LV9，RANK：330 ) 在线值：发帖 59 回帖 650 粉丝 0 关注私信	wangshq397 8 2 楼真好，就是看不懂 2006-1-22 11:34 0
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wangshq397 雪币： 277 活跃值： (312) 能力值： ( LV9，RANK：330 ) 在线值：发帖 59 回帖 650 粉丝 0 关注私信	wangshq397 8 2 楼真好，就是看不懂 2006-1-22 11:34 0
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