很好的英语学习软件突破单词破解过程详解-软件逆向-看雪-安全社区|安全招聘|kanxue.com

很好的英语学习软件突破单词破解过程详解

2004-5-25 12:05 7597

很好的英语学习软件突破单词破解过程详解

blue_devil_bomb 活跃值

2004-5-25 12:05

7597

【破解作者】 blue_devil_bomb
【作者邮箱】 [email]ninesunnine@sina.com[/email] or [email]booksunwang@21cn.com[/email]
【使用工具】 OllyDbg1.09
【破解平台】 Win2000
【软件名称】决战单词1.7
【下载地址】网上到处都是
【软件简介】学好英语是我们很多人的夙愿！要实现这个美好的梦想，记大量的单词是必不可少的重要环节。但长久以来我们饱受记单词效率低下、遗忘快的折磨，而找不到有效的办法。但现在，我们会因为有决战单词而成倍地提高记单词的效率，并使记忆牢固。记单词已经告别了传统的死记硬背、枯燥无味，而走上从容、轻松、愉快之路!!

【软件大小】 8.65MB(安装后）
【加壳方式】未加壳 VB程序
【破解声明】不为破解而破解，只为学习而破解
--------------------------------------------------------------------------------
【破解内容】

VB程序，利用smartcheck或利用olldbg等软件设端点vbastrcmp 既可！

 
004C985E   .  51            PUSH ECX //真正的注册码后面的8个
004C985F   .  8B55 D0       MOV EDX,DWORD PTR SS:[EBP-30]
004C9862   .  52            PUSH EDX
004C9863   .  8B35 50114000 MOV ESI,DWORD PTR DS:[<&MSVBVM60.__vbaSt>;  MSVBVM60.__vbaStrCmp
004C9869   .  FFD6          CALL ESI                                 ;  <&MSVBVM60.__vbaStrCmp>
004C986B   .  8BF8          MOV EDI,EAX
004C986D   .  F7DF          NEG EDI
004C986F   .  1BFF          SBB EDI,EDI
004C9871   .  F7DF          NEG EDI
004C9873   .  8B45 DC       MOV EAX,DWORD PTR SS:[EBP-24]
004C9876   .  50            PUSH EAX  //真正的注册码前面8个
004C9877   .  8B4D E0       MOV ECX,DWORD PTR SS:[EBP-20]
004C987A   .  51            PUSH ECX
004C987B   .  FFD6          CALL ESI
16位注册码，中间插入"-"如 07B78115-198BF478 
该软件作内存注册机很容易，为了达到提高水平的目的，我决定找出注册算法，写出算法注册机！！

由于我破解该软件有一段时间了，为方便阅读，详细破解过程如下！
004C97A9   > 8B45 0C        MOV EAX,DWORD PTR SS:[EBP+C]             ;  堆栈值为JmgDBWords
004C97AC   . 50             PUSH EAX
004C97AD   . E8 5E010000    CALL DBWords.004C9910                    ;  计算JmgDBWords对应值
004C97B2   . 8BD0           MOV EDX,EAX
004C97B4   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C97B7   . FFD6           CALL ESI
004C97B9   . 50             PUSH EAX
004C97BA   . 8B1D 7C124000  MOV EBX,DWORD PTR DS:[<&MSVBVM60.__vbaI4>;  MSVBVM60.__vbaI4Str
004C97C0   . FFD3           CALL EBX                     ;  <&MSVBVM60.__vbaI4Str>转换成16进制0x1
004C97C2   . 8BF8           MOV EDI,EAX
004C97C4   . 8D4D D8        LEA ECX,DWORD PTR SS:[EBP-28]
004C97C7   . 51             PUSH ECX                                 ;  注册机器码的前四个字节
004C97C8   . E8 43010000    CALL DBWords.004C9910                    ;  计算出值
004C97CD   . 8BD0           MOV EDX,EAX
004C97CF   . 8D4D C0        LEA ECX,DWORD PTR SS:[EBP-40]
004C97D2   . FFD6           CALL ESI
004C97D4   . 50             PUSH EAX
004C97D5   . FFD3           CALL EBX                                 ;  转换成16进制0x2
004C97D7   . 33F8           XOR EDI,EAX                              ;  0x1^0x2=0x3;
004C97D9   . 89BD 78FFFFFF  MOV DWORD PTR SS:[EBP-88],EDI
004C97DF   . 8D95 78FFFFFF  LEA EDX,DWORD PTR SS:[EBP-88]
004C97E5   . 52             PUSH EDX
004C97E6   . E8 A5EA0500    CALL DBWords.00528290
004C97EB   . 8BD0           MOV EDX,EAX
004C97ED   . 8D4D DC        LEA ECX,DWORD PTR SS:[EBP-24]
004C97F0   . FFD6           CALL ESI
004C97F2   . 8D45 BC        LEA EAX,DWORD PTR SS:[EBP-44]
004C97F5   . 50             PUSH EAX
004C97F6   . 8D4D C0        LEA ECX,DWORD PTR SS:[EBP-40]
004C97F9   . 51             PUSH ECX
004C97FA   . 6A 02          PUSH 2
004C97FC   . FF15 80124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeS>;  MSVBVM60.__vbaFreeStrList
004C9802   . 83C4 0C        ADD ESP,0C
004C9805   . 8B55 0C        MOV EDX,DWORD PTR SS:[EBP+C]
004C9808   . 52             PUSH EDX                                 ;  堆栈值为JmgDBWords
004C9809   . E8 02010000    CALL DBWords.004C9910                    ;  计算JmgDBWords对应值
004C980E   . 8BD0           MOV EDX,EAX
004C9810   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9813   . FFD6           CALL ESI
004C9815   . 50             PUSH EAX
004C9816   . FFD3           CALL EBX				     ; 转换成16进制0x4
004C9818   . 8BF8           MOV EDI,EAX
004C981A   . 8D45 C8        LEA EAX,DWORD PTR SS:[EBP-38]
004C981D   . 50             PUSH EAX                                 ;  注册机器码的右4个字节
004C981E   . E8 ED000000    CALL DBWords.004C9910
004C9823   . 8BD0           MOV EDX,EAX
004C9825   . 8D4D C0        LEA ECX,DWORD PTR SS:[EBP-40]
004C9828   . FFD6           CALL ESI
004C982A   . 50             PUSH EAX
004C982B   . FFD3           CALL EBX				     ;  转换成16进制0x5;
004C982D   . 33F8           XOR EDI,EAX				     ;  0x4^0x5=0x6;
004C982F   . 89BD 78FFFFFF  MOV DWORD PTR SS:[EBP-88],EDI
004C9835   . 8D8D 78FFFFFF  LEA ECX,DWORD PTR SS:[EBP-88]
004C983B   . 51             PUSH ECX
004C983C   . E8 4FEA0500    CALL DBWords.00528290
004C9841   . 8BD0           MOV EDX,EAX
004C9843   . 8D4D C4        LEA ECX,DWORD PTR SS:[EBP-3C]
004C9846   . FFD6           CALL ESI
004C9848   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C984B   . 52             PUSH EDX
004C984C   . 8D45 C0        LEA EAX,DWORD PTR SS:[EBP-40]
004C984F   . 50             PUSH EAX
004C9850   . 6A 02          PUSH 2
004C9852   . FF15 80124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeS>;  MSVBVM60.__vbaFreeStrList
004C9858   . 83C4 0C        ADD ESP,0C
004C985B   . 8B4D C4        MOV ECX,DWORD PTR SS:[EBP-3C]
004C985E   . 51             PUSH ECX				     ;真正的注册码后面的8个
004C985F   . 8B55 D0        MOV EDX,DWORD PTR SS:[EBP-30]
004C9862   . 52             PUSH EDX
004C9863   . 8B35 50114000  MOV ESI,DWORD PTR DS:[<&MSVBVM60.__vbaSt>;  MSVBVM60.__vbaStrCmp
004C9869   . FFD6           CALL ESI                                ;比较输入信息与真正注册码后8 0x6
004C986B   . 8BF8           MOV EDI,EAX
004C986D   . F7DF           NEG EDI
004C986F   . 1BFF           SBB EDI,EDI
004C9871   . F7DF           NEG EDI
004C9873   . 8B45 DC        MOV EAX,DWORD PTR SS:[EBP-24]
004C9876   . 50             PUSH EAX				     ;真正的注册码前面8个 0x3
004C9877   . 8B4D E0        MOV ECX,DWORD PTR SS:[EBP-20]
004C987A   . 51             PUSH ECX
004C987B   . FFD6           CALL ESI				     ;比较输入信息与真正注册码前8
004C987D   . F7D8           NEG EAX
004C987F   . 1BC0           SBB EAX,EAX
004C9881   . F7D8           NEG EAX
004C9883   . 23F8           AND EDI,EAX
004C9885   . F7DF           NEG EDI
004C9887   . 1BFF           SBB EDI,EDI
004C9889   . F7DF           NEG EDI
004C988B   . 4F             DEC EDI
004C988C   . 897D D4        MOV DWORD PTR SS:[EBP-2C],EDI
004C988F   . FF15 C4104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaExitP>;  MSVBVM60.__vbaExitProc
004C9895   . 68 F2984C00    PUSH DBWords.004C98F2

CALL DBWords.004C9910函数：
004C9910   $ 55             PUSH EBP
004C9911   . 8BEC           MOV EBP,ESP
004C9913   . 83EC 0C        SUB ESP,0C
004C9916   . 68 56754000    PUSH <JMP.&MSVBVM60.__vbaExceptHandler>  ;  SE handler installation
004C991B   . 64:A1 00000000 MOV EAX,DWORD PTR FS:[0]
004C9921   . 50             PUSH EAX
004C9922   . 64:8925 000000>MOV DWORD PTR FS:[0],ESP
004C9929   . 81EC E0000000  SUB ESP,0E0
004C992F   . 53             PUSH EBX
004C9930   . 56             PUSH ESI
004C9931   . 57             PUSH EDI
004C9932   . 8965 F4        MOV DWORD PTR SS:[EBP-C],ESP
004C9935   . C745 F8 F81F40>MOV DWORD PTR SS:[EBP-8],DBWords.00401FF>
004C993C   . 8B45 08        MOV EAX,DWORD PTR SS:[EBP+8]
004C993F   . 8B08           MOV ECX,DWORD PTR DS:[EAX]
004C9941   . 33F6           XOR ESI,ESI
004C9943   . 51             PUSH ECX
004C9944   . 8975 E0        MOV DWORD PTR SS:[EBP-20],ESI
004C9947   . 8975 DC        MOV DWORD PTR SS:[EBP-24],ESI
004C994A   . 8975 D4        MOV DWORD PTR SS:[EBP-2C],ESI
004C994D   . 8975 D0        MOV DWORD PTR SS:[EBP-30],ESI
004C9950   . 8975 BC        MOV DWORD PTR SS:[EBP-44],ESI
004C9953   . 8975 AC        MOV DWORD PTR SS:[EBP-54],ESI
004C9956   . 8975 9C        MOV DWORD PTR SS:[EBP-64],ESI
004C9959   . 8975 8C        MOV DWORD PTR SS:[EBP-74],ESI
004C995C   . 89B5 7CFFFFFF  MOV DWORD PTR SS:[EBP-84],ESI
004C9962   . 89B5 6CFFFFFF  MOV DWORD PTR SS:[EBP-94],ESI
004C9968   . 89B5 5CFFFFFF  MOV DWORD PTR SS:[EBP-A4],ESI
004C996E   . 89B5 4CFFFFFF  MOV DWORD PTR SS:[EBP-B4],ESI
004C9974   . 89B5 3CFFFFFF  MOV DWORD PTR SS:[EBP-C4],ESI
004C997A   . 89B5 2CFFFFFF  MOV DWORD PTR SS:[EBP-D4],ESI
004C9980   . FF15 30104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaLenBs>;  MSVBVM60.__vbaLenBstr 要计算字串长度
004C9986   . 8BC8           MOV ECX,EAX
004C9988   . FF15 70114000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaI2I4>>;  MSVBVM60.__vbaI2I4
004C998E   . 8B1D 44104000  MOV EBX,DWORD PTR DS:[<&MSVBVM60.__vbaFr>;  MSVBVM60.__vbaFreeVarList
004C9994   . BF 01000000    MOV EDI,1                      循环起点
004C9999   . 8945 CC        MOV DWORD PTR SS:[EBP-34],EAX  eax循环长度
004C999C   > 66:3B7D CC     CMP DI,WORD PTR SS:[EBP-34]    判断循环是否结束
004C99A0   . 0F8F B1010000  JG DBWords.004C9B57
004C99A6   . 8B55 08        MOV EDX,DWORD PTR SS:[EBP+8]
004C99A9   . 8D45 BC        LEA EAX,DWORD PTR SS:[EBP-44]
004C99AC   . 50             PUSH EAX
004C99AD   . 0FBFCF         MOVSX ECX,DI
004C99B0   . 8995 54FFFFFF  MOV DWORD PTR SS:[EBP-AC],EDX
004C99B6   . 51             PUSH ECX
004C99B7   . 8D95 4CFFFFFF  LEA EDX,DWORD PTR SS:[EBP-B4]
004C99BD   . 52             PUSH EDX
004C99BE   . 8D45 AC        LEA EAX,DWORD PTR SS:[EBP-54]
004C99C1   . 50             PUSH EAX
004C99C2   . C745 C4 010000>MOV DWORD PTR SS:[EBP-3C],1
004C99C9   . C745 BC 020000>MOV DWORD PTR SS:[EBP-44],2
004C99D0   . C785 4CFFFFFF >MOV DWORD PTR SS:[EBP-B4],4008
004C99DA   . FF15 2C114000  CALL DWORD PTR DS:[<&MSVBVM60.#632>]     ;  MSVBVM60.rtcMidCharVar 取字串第i个字符
004C99E0   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C99E3   . 51             PUSH ECX
004C99E4   . FF15 34104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrVa>;  MSVBVM60.__vbaStrVarMove
004C99EA   . 8BD0           MOV EDX,EAX
004C99EC   . 8D4D E0        LEA ECX,DWORD PTR SS:[EBP-20]
004C99EF   . FF15 F8124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrMo>;  MSVBVM60.__vbaStrMove
004C99F5   . 8D55 AC        LEA EDX,DWORD PTR SS:[EBP-54]
004C99F8   . 52             PUSH EDX
004C99F9   . 8D45 BC        LEA EAX,DWORD PTR SS:[EBP-44]
004C99FC   . 50             PUSH EAX
004C99FD   . 6A 02          PUSH 2
004C99FF   . FFD3           CALL EBX
004C9A01   . 8B4D E0        MOV ECX,DWORD PTR SS:[EBP-20]
004C9A04   . 83C4 0C        ADD ESP,0C
004C9A07   . 51             PUSH ECX
004C9A08   . FF15 58104000  CALL DWORD PTR DS:[<&MSVBVM60.#516>]     ;  MSVBVM60.rtcAnsiValueBstr
004C9A0E   . 66:3D FF00     CMP AX,0FF
004C9A12   . 0F8F C7000000  JG DBWords.004C9ADF
004C9A18   . 66:3BC6        CMP AX,SI
004C9A1B   . 0F8C BE000000  JL DBWords.004C9ADF
004C9A21   . 8B55 E0        MOV EDX,DWORD PTR SS:[EBP-20]
004C9A24   . 52             PUSH EDX
004C9A25   . FF15 58104000  CALL DWORD PTR DS:[<&MSVBVM60.#516>]     ;  MSVBVM60.rtcAnsiValueBstr 第i个字符的ASCII值放到EAX
004C9A2B   . 8BC8           MOV ECX,EAX
004C9A2D   . FF15 B4114000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaUI1I2>;  MSVBVM60.__vbaUI1I2
004C9A33   . 8B4D D0        MOV ECX,DWORD PTR SS:[EBP-30]
004C9A36   . 66:0FB6F0      MOVZX SI,AL
004C9A3A   . 66:8BC6        MOV AX,SI
004C9A3D   . 66:99          CWD
004C9A3F   . 898D 44FFFFFF  MOV DWORD PTR SS:[EBP-BC],ECX
004C9A45   . 66:B9 0A00     MOV CX,0A
004C9A49   . 66:F7F9        IDIV CX
004C9A4C   . 8D45 AC        LEA EAX,DWORD PTR SS:[EBP-54]
004C9A4F   . C785 3CFFFFFF >MOV DWORD PTR SS:[EBP-C4],8
004C9A59   . C745 BC 020000>MOV DWORD PTR SS:[EBP-44],2
004C9A60   . 66:8955 C4     MOV WORD PTR SS:[EBP-3C],DX              ;余数存放
004C9A64   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C9A67   . 52             PUSH EDX
004C9A68   . 50             PUSH EAX
004C9A69   . FF15 D0124000  CALL DWORD PTR DS:[<&MSVBVM60.#613>]     ;  MSVBVM60.rtcVarStrFromVar
004C9A6F   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9A72   . 51             PUSH ECX
004C9A73   . 8D55 9C        LEA EDX,DWORD PTR SS:[EBP-64]
004C9A76   . 52             PUSH EDX
004C9A77   . FF15 04114000  CALL DWORD PTR DS:[<&MSVBVM60.#520>]     ;  MSVBVM60.rtcTrimVar
004C9A7D   . 8D85 3CFFFFFF  LEA EAX,DWORD PTR SS:[EBP-C4]
004C9A83   . 50             PUSH EAX
004C9A84   . 8D4D 9C        LEA ECX,DWORD PTR SS:[EBP-64]
004C9A87   . 51             PUSH ECX
004C9A88   . 8D55 8C        LEA EDX,DWORD PTR SS:[EBP-74]
004C9A8B   . 52             PUSH EDX                             ;堆栈存放i位前字符ASCII值/10余数
004C9A8C   . FF15 2C124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaVarCa>;  MSVBVM60.__vbaVarCat 将余数连接
004C9A92   . 50             PUSH EAX
004C9A93   . FF15 34104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrVa>;  MSVBVM60.__vbaStrVarMove
004C9A99   . 8BD0           MOV EDX,EAX
004C9A9B   . 8D4D D0        LEA ECX,DWORD PTR SS:[EBP-30]
004C9A9E   . FF15 F8124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrMo>;  MSVBVM60.__vbaStrMove
004C9AA4   . 8D45 8C        LEA EAX,DWORD PTR SS:[EBP-74]
004C9AA7   . 50             PUSH EAX
004C9AA8   . 8D4D 9C        LEA ECX,DWORD PTR SS:[EBP-64]
004C9AAB   . 51             PUSH ECX
004C9AAC   . 8D55 AC        LEA EDX,DWORD PTR SS:[EBP-54]
004C9AAF   . 52             PUSH EDX
004C9AB0   . 8D45 BC        LEA EAX,DWORD PTR SS:[EBP-44]
004C9AB3   . 50             PUSH EAX
004C9AB4   . 6A 04          PUSH 4
004C9AB6   . FFD3           CALL EBX
004C9AB8   . 83C4 14        ADD ESP,14
004C9ABB   . 66:0375 D4     ADD SI,WORD PTR SS:[EBP-2C]
004C9ABF   . B8 01000000    MOV EAX,1
004C9AC4   . 0F80 1E030000  JO DBWords.004C9DE8
004C9ACA   . 66:03C7        ADD AX,DI
004C9ACD   . 0F80 15030000  JO DBWords.004C9DE8
004C9AD3   . 8975 D4        MOV DWORD PTR SS:[EBP-2C],ESI   //存贮字串ASCII值累加和
004C9AD6   . 33F6           XOR ESI,ESI
004C9AD8   . 8BF8           MOV EDI,EAX
004C9ADA   .^E9 BDFEFFFF    JMP DBWords.004C999C            
004C9ADF   > B9 0A000000    MOV ECX,0A
004C9AE4   . B8 04000280    MOV EAX,80020004
004C9AE9   . 894D 8C        MOV DWORD PTR SS:[EBP-74],ECX
004C9AEC   . 894D 9C        MOV DWORD PTR SS:[EBP-64],ECX
004C9AEF   . 894D AC        MOV DWORD PTR SS:[EBP-54],ECX
004C9AF2   . 8D95 4CFFFFFF  LEA EDX,DWORD PTR SS:[EBP-B4]
004C9AF8   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9AFB   . 8945 94        MOV DWORD PTR SS:[EBP-6C],EAX
004C9AFE   . 8945 A4        MOV DWORD PTR SS:[EBP-5C],EAX
004C9B01   . 8945 B4        MOV DWORD PTR SS:[EBP-4C],EAX
004C9B04   . C785 54FFFFFF >MOV DWORD PTR SS:[EBP-AC],DBWords.004611>
004C9B0E   . C785 4CFFFFFF >MOV DWORD PTR SS:[EBP-B4],8
004C9B18   . FF15 BC124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaVarDu>;  MSVBVM60.__vbaVarDup
004C9B1E   . 8D4D 8C        LEA ECX,DWORD PTR SS:[EBP-74]
004C9B21   . 51             PUSH ECX
004C9B22   . 8D55 9C        LEA EDX,DWORD PTR SS:[EBP-64]
004C9B25   . 52             PUSH EDX
004C9B26   . 8D45 AC        LEA EAX,DWORD PTR SS:[EBP-54]
004C9B29   . 50             PUSH EAX
004C9B2A   . 56             PUSH ESI
004C9B2B   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9B2E   . 51             PUSH ECX
004C9B2F   . FF15 E0104000  CALL DWORD PTR DS:[<&MSVBVM60.#595>]     ;  MSVBVM60.rtcMsgBox
004C9B35   . 8D55 8C        LEA EDX,DWORD PTR SS:[EBP-74]
004C9B38   . 52             PUSH EDX
004C9B39   . 8D45 9C        LEA EAX,DWORD PTR SS:[EBP-64]
004C9B3C   . 50             PUSH EAX
004C9B3D   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9B40   . 51             PUSH ECX
004C9B41   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C9B44   . 52             PUSH EDX
004C9B45   . 6A 04          PUSH 4
004C9B47   . FFD3           CALL EBX
004C9B49   . 9B             WAIT
004C9B4A   . 83C4 14        ADD ESP,14
004C9B4D   . 68 D29D4C00    PUSH DBWords.004C9DD2
004C9B52   . E9 6A020000    JMP DBWords.004C9DC1
004C9B57   > 8B45 D0        MOV EAX,DWORD PTR SS:[EBP-30]      //字符ASCII值/10余数串成新串
004C9B5A   . 50             PUSH EAX
004C9B5B   . FF15 30104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaLenBs>;  MSVBVM60.__vbaLenBstr
004C9B61   . 83F8 04        CMP EAX,4
004C9B64   . 7C 62          JL SHORT DBWords.004C9BC8
004C9B66   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C9B69   . 52             PUSH EDX
004C9B6A   . 8D4D D0        LEA ECX,DWORD PTR SS:[EBP-30]
004C9B6D   . 6A 02          PUSH 2
004C9B6F   . 8D85 4CFFFFFF  LEA EAX,DWORD PTR SS:[EBP-B4]
004C9B75   . 898D 54FFFFFF  MOV DWORD PTR SS:[EBP-AC],ECX
004C9B7B   . 50             PUSH EAX
004C9B7C   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9B7F   . 51             PUSH ECX
004C9B80   . C745 C4 030000>MOV DWORD PTR SS:[EBP-3C],3              ;取3位
004C9B87   . C745 BC 020000>MOV DWORD PTR SS:[EBP-44],2              ;起点2
004C9B8E   . C785 4CFFFFFF >MOV DWORD PTR SS:[EBP-B4],4008
004C9B98   . FF15 2C114000  CALL DWORD PTR DS:[<&MSVBVM60.#632>]     ;  MSVBVM60.rtcMidCharVar
004C9B9E   . 8B3D 34104000  MOV EDI,DWORD PTR DS:[<&MSVBVM60.__vbaSt>;  MSVBVM60.__vbaStrVarMove
004C9BA4   . 8D55 AC        LEA EDX,DWORD PTR SS:[EBP-54]
004C9BA7   . 52             PUSH EDX
004C9BA8   . FFD7           CALL EDI                                 ;  取字串的2,3,4位和成一数=a
004C9BAA   . 8B35 F8124000  MOV ESI,DWORD PTR DS:[<&MSVBVM60.__vbaSt>;  MSVBVM60.__vbaStrMove
004C9BB0   . 8BD0           MOV EDX,EAX
004C9BB2   . 8D4D D0        LEA ECX,DWORD PTR SS:[EBP-30]
004C9BB5   . FFD6           CALL ESI                                 ;  <&MSVBVM60.__vbaStrMove>
004C9BB7   . 8D45 AC        LEA EAX,DWORD PTR SS:[EBP-54]
004C9BBA   . 50             PUSH EAX
004C9BBB   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9BBE   . 51             PUSH ECX
004C9BBF   . 6A 02          PUSH 2
004C9BC1   . FFD3           CALL EBX
004C9BC3   . 83C4 0C        ADD ESP,0C
004C9BC6   . EB 0C          JMP SHORT DBWords.004C9BD4
004C9BC8   > 8B35 F8124000  MOV ESI,DWORD PTR DS:[<&MSVBVM60.__vbaSt>;  MSVBVM60.__vbaStrMove
004C9BCE   . 8B3D 34104000  MOV EDI,DWORD PTR DS:[<&MSVBVM60.__vbaSt>;  MSVBVM60.__vbaStrVarMove
004C9BD4   > 8B55 D0        MOV EDX,DWORD PTR SS:[EBP-30]
004C9BD7   . 52             PUSH EDX
004C9BD8   . FF15 40134000  CALL DWORD PTR DS:[<&MSVBVM60.#581>]     ;  MSVBVM60.rtcR8ValFromBstr
004C9BDE   . FF15 E0124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFpI4>>;  MSVBVM60.__vbaFpI4
004C9BE4   . 35 E8030000    XOR EAX,3E8                              ;  a^=0x3e8;
004C9BE9   . 8945 C4        MOV DWORD PTR SS:[EBP-3C],EAX     
004C9BEC   . 8D45 BC        LEA EAX,DWORD PTR SS:[EBP-44]
004C9BEF   . 50             PUSH EAX
004C9BF0   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9BF3   . 51             PUSH ECX
004C9BF4   . C745 BC 030000>MOV DWORD PTR SS:[EBP-44],3
004C9BFB   . FF15 D0124000  CALL DWORD PTR DS:[<&MSVBVM60.#613>]     ;  MSVBVM60.rtcVarStrFromVar
004C9C01   . 8D55 AC        LEA EDX,DWORD PTR SS:[EBP-54]
004C9C04   . 52             PUSH EDX
004C9C05   . 8D45 9C        LEA EAX,DWORD PTR SS:[EBP-64]
004C9C08   . 50             PUSH EAX
004C9C09   . FF15 04114000  CALL DWORD PTR DS:[<&MSVBVM60.#520>]     ;  MSVBVM60.rtcTrimVar
004C9C0F   . 8D4D 9C        LEA ECX,DWORD PTR SS:[EBP-64]
004C9C12   . 51             PUSH ECX
004C9C13   . FFD7           CALL EDI
004C9C15   . 8BD0           MOV EDX,EAX
004C9C17   . 8D4D D0        LEA ECX,DWORD PTR SS:[EBP-30]
004C9C1A   . FFD6           CALL ESI
004C9C1C   . 8D55 9C        LEA EDX,DWORD PTR SS:[EBP-64]
004C9C1F   . 52             PUSH EDX
004C9C20   . 8D45 AC        LEA EAX,DWORD PTR SS:[EBP-54]
004C9C23   . 50             PUSH EAX
004C9C24   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9C27   . 51             PUSH ECX
004C9C28   . 6A 03          PUSH 3
004C9C2A   . FFD3           CALL EBX  
004C9C2C   . 66:8B45 D4     MOV AX,WORD PTR SS:[EBP-2C]               ;原始字串字符ASCII值和=b
004C9C30   . 66:99          CWD
004C9C32   . 66:B9 E803     MOV CX,3E8
004C9C36   . 66:F7F9        IDIV CX
004C9C39   . 83C4 10        ADD ESP,10
004C9C3C   . 8955 D4        MOV DWORD PTR SS:[EBP-2C],EDX
004C9C3F   . 8B55 D0        MOV EDX,DWORD PTR SS:[EBP-30]
004C9C42   . 52             PUSH EDX
004C9C43   . FF15 40134000  CALL DWORD PTR DS:[<&MSVBVM60.#581>]     ;  MSVBVM60.rtcR8ValFromBstr
004C9C49   . FF15 E0124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFpI4>>;  MSVBVM60.__vbaFpI4
004C9C4F   . 0FBF4D D4      MOVSX ECX,WORD PTR SS:[EBP-2C]
004C9C53   . 33C1           XOR EAX,ECX                              ;  b^=a;
004C9C55   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C9C58   . 8945 C4        MOV DWORD PTR SS:[EBP-3C],EAX
004C9C5B   . 52             PUSH EDX
004C9C5C   . 8D45 AC        LEA EAX,DWORD PTR SS:[EBP-54]
004C9C5F   . 50             PUSH EAX
004C9C60   . C745 BC 030000>MOV DWORD PTR SS:[EBP-44],3
004C9C67   . FF15 D0124000  CALL DWORD PTR DS:[<&MSVBVM60.#613>]     ;  MSVBVM60.rtcVarStrFromVar
004C9C6D   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9C70   . 51             PUSH ECX
004C9C71   . 8D55 9C        LEA EDX,DWORD PTR SS:[EBP-64]
004C9C74   . 52             PUSH EDX
004C9C75   . FF15 04114000  CALL DWORD PTR DS:[<&MSVBVM60.#520>]     ;  MSVBVM60.rtcTrimVar
004C9C7B   . 8D8D 3CFFFFFF  LEA ECX,DWORD PTR SS:[EBP-C4]
004C9C81   . 51             PUSH ECX
004C9C82   . 8D55 8C        LEA EDX,DWORD PTR SS:[EBP-74]
004C9C85   . 8D45 D4        LEA EAX,DWORD PTR SS:[EBP-2C]
004C9C88   . 52             PUSH EDX
004C9C89   . 8985 44FFFFFF  MOV DWORD PTR SS:[EBP-BC],EAX
004C9C8F   . C785 3CFFFFFF >MOV DWORD PTR SS:[EBP-C4],4002
004C9C99   . FF15 D0124000  CALL DWORD PTR DS:[<&MSVBVM60.#613>]     ;  MSVBVM60.rtcVarStrFromVar
004C9C9F   . 8D45 8C        LEA EAX,DWORD PTR SS:[EBP-74]
004C9CA2   . 50             PUSH EAX
004C9CA3   . 8D8D 7CFFFFFF  LEA ECX,DWORD PTR SS:[EBP-84]
004C9CA9   . 51             PUSH ECX
004C9CAA   . FF15 04114000  CALL DWORD PTR DS:[<&MSVBVM60.#520>]     ;  MSVBVM60.rtcTrimVar
004C9CB0   . 8B55 D0        MOV EDX,DWORD PTR SS:[EBP-30]
004C9CB3   . 8D45 9C        LEA EAX,DWORD PTR SS:[EBP-64]
004C9CB6   . 50             PUSH EAX
004C9CB7   . 8D8D 7CFFFFFF  LEA ECX,DWORD PTR SS:[EBP-84]
004C9CBD   . 8995 34FFFFFF  MOV DWORD PTR SS:[EBP-CC],EDX
004C9CC3   . 51             PUSH ECX
004C9CC4   . 8D95 6CFFFFFF  LEA EDX,DWORD PTR SS:[EBP-94]
004C9CCA   . 52             PUSH EDX
004C9CCB   . C785 2CFFFFFF >MOV DWORD PTR SS:[EBP-D4],8
004C9CD5   . FF15 2C124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaVarCa>; ; 字串连接
004C9CDB   . 50             PUSH EAX
004C9CDC   . 8D85 2CFFFFFF  LEA EAX,DWORD PTR SS:[EBP-D4]
004C9CE2   . 50             PUSH EAX
004C9CE3   . 8D8D 5CFFFFFF  LEA ECX,DWORD PTR SS:[EBP-A4]
004C9CE9   . 51             PUSH ECX
004C9CEA   . FF15 2C124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaVarCa>; ; 字串连接
004C9CF0   . 50             PUSH EAX
004C9CF1   . FFD7           CALL EDI          
004C9CF3   . 8BD0           MOV EDX,EAX                                ; eax存放计算结果
004C9CF5   . 8D4D DC        LEA ECX,DWORD PTR SS:[EBP-24]
004C9CF8   . FFD6           CALL ESI
004C9CFA   . 8D95 5CFFFFFF  LEA EDX,DWORD PTR SS:[EBP-A4]
004C9D00   . 52             PUSH EDX
004C9D01   . 8D85 6CFFFFFF  LEA EAX,DWORD PTR SS:[EBP-94]
004C9D07   . 50             PUSH EAX
004C9D08   . 8D8D 7CFFFFFF  LEA ECX,DWORD PTR SS:[EBP-84]
004C9D0E   . 51             PUSH ECX
004C9D0F   . 8D55 9C        LEA EDX,DWORD PTR SS:[EBP-64]
004C9D12   . 52             PUSH EDX
004C9D13   . 8D45 8C        LEA EAX,DWORD PTR SS:[EBP-74]
004C9D16   . 50             PUSH EAX
004C9D17   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9D1A   . 51             PUSH ECX
004C9D1B   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C9D1E   . 52             PUSH EDX
004C9D1F   . 6A 07          PUSH 7
004C9D21   . FFD3           CALL EBX
004C9D23   . 8B45 DC        MOV EAX,DWORD PTR SS:[EBP-24]
004C9D26   . 83C4 20        ADD ESP,20
004C9D29   . 50             PUSH EAX
004C9D2A   . FF15 5C124000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaR8Str>;  MSVBVM60.__vbaR8Str
004C9D30   . DC1D F01F4000  FCOMP QWORD PTR DS:[401FF0]
004C9D36   . DFE0           FSTSW AX
004C9D38   . F6C4 41        TEST AH,41
004C9D3B   . 75 3C          JNZ SHORT DBWords.004C9D79
004C9D3D   . 6A 09          PUSH 9
004C9D3F   . 8D95 4CFFFFFF  LEA EDX,DWORD PTR SS:[EBP-B4]
004C9D45   . 52             PUSH EDX
004C9D46   . 8D45 BC        LEA EAX,DWORD PTR SS:[EBP-44]
004C9D49   . 8D4D DC        LEA ECX,DWORD PTR SS:[EBP-24]
004C9D4C   . 50             PUSH EAX
004C9D4D   . 898D 54FFFFFF  MOV DWORD PTR SS:[EBP-AC],ECX
004C9D53   . C785 4CFFFFFF >MOV DWORD PTR SS:[EBP-B4],4008
004C9D5D   . FF15 04134000  CALL DWORD PTR DS:[<&MSVBVM60.#619>]     ;  MSVBVM60.rtcRightCharVar
004C9D63   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9D66   . 51             PUSH ECX
004C9D67   . FFD7           CALL EDI
004C9D69   . 8BD0           MOV EDX,EAX
004C9D6B   . 8D4D DC        LEA ECX,DWORD PTR SS:[EBP-24]
004C9D6E   . FFD6           CALL ESI
004C9D70   . 8D4D BC        LEA ECX,DWORD PTR SS:[EBP-44]
004C9D73   . FF15 20104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeV>;  MSVBVM60.__vbaFreeVar
004C9D79   > 9B             WAIT
004C9D7A   . 68 D29D4C00    PUSH DBWords.004C9DD2
004C9D7F   . EB 40          JMP SHORT DBWords.004C9DC1
004C9D81   . F645 FC 04     TEST BYTE PTR SS:[EBP-4],4
004C9D85   . 74 09          JE SHORT DBWords.004C9D90
004C9D87   . 8D4D DC        LEA ECX,DWORD PTR SS:[EBP-24]
004C9D8A   . FF15 38134000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeS>;  MSVBVM60.__vbaFreeStr
004C9D90   > 8D95 5CFFFFFF  LEA EDX,DWORD PTR SS:[EBP-A4]
004C9D96   . 52             PUSH EDX
004C9D97   . 8D85 6CFFFFFF  LEA EAX,DWORD PTR SS:[EBP-94]
004C9D9D   . 50             PUSH EAX
004C9D9E   . 8D8D 7CFFFFFF  LEA ECX,DWORD PTR SS:[EBP-84]
004C9DA4   . 51             PUSH ECX
004C9DA5   . 8D55 8C        LEA EDX,DWORD PTR SS:[EBP-74]
004C9DA8   . 52             PUSH EDX
004C9DA9   . 8D45 9C        LEA EAX,DWORD PTR SS:[EBP-64]
004C9DAC   . 50             PUSH EAX
004C9DAD   . 8D4D AC        LEA ECX,DWORD PTR SS:[EBP-54]
004C9DB0   . 51             PUSH ECX
004C9DB1   . 8D55 BC        LEA EDX,DWORD PTR SS:[EBP-44]
004C9DB4   . 52             PUSH EDX
004C9DB5   . 6A 07          PUSH 7
004C9DB7   . FF15 44104000  CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeV>;  MSVBVM60.__vbaFreeVarList
004C9DBD   . 83C4 20        ADD ESP,20
004C9DC0   . C3             RETN
004C9DC1   > 8B35 38134000  MOV ESI,DWORD PTR DS:[<&MSVBVM60.__vbaFr>;  MSVBVM60.__vbaFreeStr
004C9DC7   . 8D4D E0        LEA ECX,DWORD PTR SS:[EBP-20]
004C9DCA   . FFD6           CALL ESI                                 ;  <&MSVBVM60.__vbaFreeStr>
004C9DCC   . 8D4D D0        LEA ECX,DWORD PTR SS:[EBP-30]
004C9DCF   . FFD6           CALL ESI
004C9DD1   . C3             RETN
004C9DD2   . 8B4D EC        MOV ECX,DWORD PTR SS:[EBP-14]
004C9DD5   . 8B45 DC        MOV EAX,DWORD PTR SS:[EBP-24]
004C9DD8   . 5F             POP EDI
004C9DD9   . 5E             POP ESI
004C9DDA   . 64:890D 000000>MOV DWORD PTR FS:[0],ECX
004C9DE1   . 5B             POP EBX
004C9DE2   . 8BE5           MOV ESP,EBP
004C9DE4   . 5D             POP EBP
004C9DE5   . C2 0400        RETN 4

至此算法清楚，我们写出其算法注册机：
算法：
1、利用一个固定的串Str1="JmgDBWords"
2、机器码Str=XXXXXXXX-XXXXXXXX 左八位StrL,右八位StrR
3、函数JS（CString）返回16进制32位值
   则注册码为[JS(Str1)^JS(StrL)]-[JS(Str1)^JS(StrR)]
函数JS（）如下：
unsigned long CJzdc107zcjDlg::JS(CString str)
{
	unsigned long a=0;
        int i;
	unsigned long temp=0;
	for(i=0;i<str.GetLength();i++)		a+=str.GetAt(i);
	for(i=1;i<4;i++)   temp=temp*10+str.GetAt(i)%10;
	CString tt,sum="";
	temp=temp^0x3e8;
	tt.Format("%d",temp);
	sum+=tt;
	a%=1000;
	tt.Format("%d",a);
	sum.Insert(0,tt);
	temp=a^temp;
	tt.Format("%d",temp);
	sum.Insert(0,tt);
	unsigned long b=0;
	for(i=0;i<sum.GetLength();i++)
		b=b*10+(sum.GetAt(i)-'0');
	return b;
}

--------------------------------------------------------------------------------

【破解总结】
软件注册成功后将注册信息写到了注册表的HKEY_LOCAL_MACHINE\SoftWare\JmgSoft\DBWords\Register\RegCode和
HKEY_LOCAL_MACHINE\SoftWare\JmgSoft\DBWords\Register\UserName处
每次启动读取此处的信息进行注册验证成功则为注册，否则为未注册。
--------------------------------------------------------------------------------
不到万不得已我们不爆破，不为别得，只为提高自己的编程水平，哈哈！！
我想别人可能已经破解了该软件，或者别人不屑一破，没有任何参考独立完成，对于我来说真是一次很好的锻炼~！！
--------------------------------------------------------------------------------
【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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blue_devil_bomb 雪币： 295 活跃值： (461) 能力值： ( LV9，RANK：210 ) 在线值：发帖 14 回帖 165 粉丝 0 关注私信	blue_devil_bomb 5 2004-5-25 12:50 2 楼 0 看后请直言！
sixfor 雪币： 236 活跃值： (48) 能力值： ( LV2，RANK：10 ) 在线值：发帖 32 回帖 300 粉丝 1 关注私信	sixfor 2004-5-25 12:54 3 楼 0 好，鼓励中…… 再接再厉
blue_devil_bomb 雪币： 295 活跃值： (461) 能力值： ( LV9，RANK：210 ) 在线值：发帖 14 回帖 165 粉丝 0 关注私信	blue_devil_bomb 5 2004-5-26 21:06 4 楼 0 是不是别人已经写过了？
flyfox 雪币： 205 活跃值： (12) 能力值： ( LV2，RANK：10 ) 在线值：发帖 0 回帖 56 粉丝 1 关注私信	flyfox 2004-5-26 22:43 5 楼 0 不错，学习。
blue_devil_bomb 雪币： 295 活跃值： (461) 能力值： ( LV9，RANK：210 ) 在线值：发帖 14 回帖 165 粉丝 0 关注私信	blue_devil_bomb 5 2004-5-27 12:37 6 楼 0 多谢大家鼓励，我会再接再厉，将更多更新更好的算法与大家分享！
XF[BCG] 雪币： 235 活跃值： (160) 能力值： ( LV4，RANK：50 ) 在线值：发帖 6 回帖 92 粉丝 0 关注私信	XF[BCG] 1 2004-5-27 12:49 7 楼 0 不错，支持一下。
冷静雪币： 106 活跃值： (10) 能力值： ( LV2，RANK：10 ) 在线值：发帖 4 回帖 69 粉丝 1 关注私信	冷静 2004-5-28 13:15 8 楼 0 Ding，，，，
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