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[MD5算法练习] MD5CrackMe算法分析

时间:2016-06-01 22:42:15      阅读:351      评论:0      收藏:0      [点我收藏+]

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【破文标题】[MD5算法练习] MD5CrackMe算法分析
【破文作者】静心学习
【作者邮箱】sharept@qq.com
【作者主页】http://www.cnblogs.com/dacainiao/
【破解工具】OD
【破解平台】xp sp3
【软件名称】MD5CrackMe
【软件大小】72KB
【原版下载】http://pan.baidu.com/share/link?shareid=1620370201&uk=892352529
【保护方式】无壳
【软件简介】一个MD5算法练习的CrackMe
【破解声明】初学密码学,跟着看雪前辈们的脚步学习,错误之处敬请诸位前辈不吝赐教。
------------------------------------------------------------------------
【破解过程】程序VC编写,无壳,使用bp MessageBox断点,可以很快找到算法验证。

00402864 . 68 00010000 PUSH 0x100 ; /Count = 100 (256.)
00402869 . 51 PUSH ECX ; |Buffer
0040286A . 68 E8030000 PUSH 0x3E8 ; |ControlID = 3E8 (1000.)
0040286F . 56 PUSH ESI ; |hWnd
00402870 . FFD5 CALL NEAR EBP ; \GetDlgItemTextA
00402872 . 8DBC24 0C0100>LEA EDI, DWORD PTR SS:[ESP+0x10C]
00402879 . 83C9 FF OR ECX, 0xFFFFFFFF
0040287C . 33C0 XOR EAX, EAX
0040287E . F2:AE REPNE SCAS BYTE PTR ES:[EDI]
00402880 . F7D1 NOT ECX
00402882 . 49 DEC ECX
00402883 . 83F9 01 CMP ECX, 0x1
00402886 . 73 1F JNB SHORT MD5Crack.004028A7
00402888 . 6A 40 PUSH 0x40 ; /Style = MB_OK|MB_ICONASTERISK|MB_APPLMODAL
0040288A . 68 A4D14000 PUSH MD5Crack.0040D1A4 ; |Title = "注册提示"
0040288F . 68 8CD14000 PUSH MD5Crack.0040D18C ; |Text = "用户名不能为空请输入!"
00402894 . 56 PUSH ESI ; |hOwner
00402895 . FF15 D4B04000 CALL NEAR DWORD PTR DS:[<&USER32.MessageBoxA>] ; \MessageBoxA
0040289B . 5F POP EDI
0040289C . 5E POP ESI
0040289D . 33C0 XOR EAX, EAX
0040289F . 5D POP EBP
004028A0 . 81C4 00030000 ADD ESP, 0x300
004028A6 . C3 RETN
004028A7 > 8D5424 0C LEA EDX, DWORD PTR SS:[ESP+0xC]
004028AB . 68 00010000 PUSH 0x100
004028B0 . 52 PUSH EDX
004028B1 . 68 07040000 PUSH 0x407
004028B6 . 56 PUSH ESI
004028B7 . FFD5 CALL NEAR EBP ; user32.GetDlgItemTextA
004028B9 . 8D7C24 0C LEA EDI, DWORD PTR SS:[ESP+0xC]
004028BD . 83C9 FF OR ECX, 0xFFFFFFFF
004028C0 . 33C0 XOR EAX, EAX
004028C2 . F2:AE REPNE SCAS BYTE PTR ES:[EDI]
004028C4 . F7D1 NOT ECX
004028C6 . 49 DEC ECX
004028C7 . 83F9 01 CMP ECX, 0x1
004028CA . 73 1F JNB SHORT MD5Crack.004028EB
004028CC . 6A 40 PUSH 0x40 ; /Style = MB_OK|MB_ICONASTERISK|MB_APPLMODAL
004028CE . 68 A4D14000 PUSH MD5Crack.0040D1A4 ; |Title = "注册提示"
004028D3 . 68 74D14000 PUSH MD5Crack.0040D174 ; |Text = "注册码不能为空请输入!"
004028D8 . 56 PUSH ESI ; |hOwner
004028D9 . FF15 D4B04000 CALL NEAR DWORD PTR DS:[<&USER32.MessageBoxA>] ; \MessageBoxA
004028DF . 5F POP EDI
004028E0 . 5E POP ESI
004028E1 . 33C0 XOR EAX, EAX
004028E3 . 5D POP EBP
004028E4 . 81C4 00030000 ADD ESP, 0x300
004028EA . C3 RETN
004028EB > 8D8424 0C0200>LEA EAX, DWORD PTR SS:[ESP+0x20C]
004028F2 . 6A 00 PUSH 0x0
004028F4 . 8D8C24 100100>LEA ECX, DWORD PTR SS:[ESP+0x110]
004028FB . 50 PUSH EAX
004028FC . 51 PUSH ECX
004028FD . E8 FEFCFFFF CALL MD5Crack.00402600 ; //算法call
00402902 . 8D9424 180200>LEA EDX, DWORD PTR SS:[ESP+0x218] ; //32位MD5
00402909 . 8D4424 18 LEA EAX, DWORD PTR SS:[ESP+0x18] ; //注册码
0040290D . 52 PUSH EDX
0040290E . 50 PUSH EAX
0040290F . E8 CCFDFFFF CALL MD5Crack.004026E0
00402914 . 83C4 14 ADD ESP, 0x14
00402917 . 83F8 01 CMP EAX, 0x1 ; //返回值为1注册成功
0040291A . 6A 40 PUSH 0x40 ; /Style = MB_OK|MB_ICONASTERISK|MB_APPLMODAL
0040291C . 68 A4D14000 PUSH MD5Crack.0040D1A4 ; |Title = "注册提示"
00402921 . 75 18 JNZ SHORT MD5Crack.0040293B ; |
00402923 . 68 60D14000 PUSH MD5Crack.0040D160 ; |Text = "恭喜你,注册码正确!"
00402928 . 56 PUSH ESI ; |hOwner
00402929 . FF15 D4B04000 CALL NEAR DWORD PTR DS:[<&USER32.MessageBoxA>] ; \MessageBoxA
0040292F . 5F POP EDI
00402930 . 5E POP ESI
00402931 . 33C0 XOR EAX, EAX
00402933 . 5D POP EBP
00402934 . 81C4 00030000 ADD ESP, 0x300
0040293A . C3 RETN
0040293B > 68 48D14000 PUSH MD5Crack.0040D148 ; |Text = "注册码错误,继续加油!"
00402940 . 56 PUSH ESI ; |hOwner
00402941 . FF15 D4B04000 CALL NEAR DWORD PTR DS:[<&USER32.MessageBoxA>] ; \MessageBoxA
00402947 . 5F POP EDI
00402948 . 5E POP ESI
00402949 . 33C0 XOR EAX, EAX
0040294B . 5D POP EBP
0040294C . 81C4 00030000 ADD ESP, 0x300
00402952 . C3 RETN
00402953 > 8B0D 6C014100 MOV ECX, DWORD PTR DS:[0x41016C] ; MD5Crack.00400000; Case 110 (WM_INITDIALOG) of switch 0040280B
00402959 . 68 9A000000 PUSH 0x9A ; /RsrcName = 154.
0040295E . 51 PUSH ECX ; |hInst => 00400000
0040295F . FF15 D8B04000 CALL NEAR DWORD PTR DS:[<&USER32.LoadIconA>] ; \LoadIconA
00402965 . 8B9424 100300>MOV EDX, DWORD PTR SS:[ESP+0x310]
0040296C . 50 PUSH EAX ; /lParam
0040296D . 6A 01 PUSH 0x1 ; |wParam = 0x1
0040296F . 68 80000000 PUSH 0x80 ; |Message = WM_SETICON
00402974 . 52 PUSH EDX ; |hWnd
00402975 . A3 68014100 MOV DWORD PTR DS:[0x410168], EAX ; |
0040297A . FF15 DCB04000 CALL NEAR DWORD PTR DS:[<&USER32.SendMessageA>] ; \SendMessageA
00402980 . 5F POP EDI
00402981 . 5E POP ESI
00402982 . 33C0 XOR EAX, EAX
00402984 . 5D POP EBP
00402985 . 81C4 00030000 ADD ESP, 0x300
0040298B . C3 RETN

 

跟进算法CALL 00402600:

00402600 /$ 6A FF PUSH -0x1
00402602 |. 68 A8A14000 PUSH MD5Crack.0040A1A8 ; SE 处理程序安装
00402607 |. 64:A1 0000000>MOV EAX, DWORD PTR FS:[0]
0040260D |. 50 PUSH EAX
0040260E |. 64:8925 00000>MOV DWORD PTR FS:[0], ESP
00402615 |. 81EC 2C010000 SUB ESP, 0x12C
0040261B |. 53 PUSH EBX
0040261C |. 55 PUSH EBP
0040261D |. 56 PUSH ESI
0040261E |. 57 PUSH EDI
0040261F |. 8D8C24 DC0000>LEA ECX, DWORD PTR SS:[ESP+0xDC]
00402626 |. E8 15F2FFFF CALL MD5Crack.00401840 ; //MD5_Init
0040262B |. 8BAC24 540100>MOV EBP, DWORD PTR SS:[ESP+0x154]
00402632 |. 33C0 XOR EAX, EAX
00402634 |. 3BE8 CMP EBP, EAX
00402636 |. 898424 440100>MOV DWORD PTR SS:[ESP+0x144], EAX
0040263D |. 8DB424 DC0000>LEA ESI, DWORD PTR SS:[ESP+0xDC]
00402644 |. 74 04 JE SHORT MD5Crack.0040264A
00402646 |. 8B7424 10 MOV ESI, DWORD PTR SS:[ESP+0x10]
0040264A |> 884424 14 MOV BYTE PTR SS:[ESP+0x14], AL
0040264E |. B9 10000000 MOV ECX, 0x10
00402653 |. 33C0 XOR EAX, EAX
00402655 |. 8D7C24 15 LEA EDI, DWORD PTR SS:[ESP+0x15]
00402659 |. F3:AB REP STOS DWORD PTR ES:[EDI]
0040265B |. 8B06 MOV EAX, DWORD PTR DS:[ESI]
0040265D |. 8BCE MOV ECX, ESI
0040265F |. FF50 0C CALL NEAR DWORD PTR DS:[EAX+0xC] ; //MD5_Init
00402662 |. 8B9424 4C0100>MOV EDX, DWORD PTR SS:[ESP+0x14C]
00402669 |. 83C9 FF OR ECX, 0xFFFFFFFF
0040266C |. 8BFA MOV EDI, EDX
0040266E |. 33C0 XOR EAX, EAX
00402670 |. F2:AE REPNE SCAS BYTE PTR ES:[EDI]
00402672 |. 8B1E MOV EBX, DWORD PTR DS:[ESI]
00402674 |. F7D1 NOT ECX
00402676 |. 49 DEC ECX
00402677 |. 51 PUSH ECX
00402678 |. 52 PUSH EDX
00402679 |. 8BCE MOV ECX, ESI
0040267B |. FF53 04 CALL NEAR DWORD PTR DS:[EBX+0x4] ; //1. 用户名 2. 长度
0040267E |. 8B16 MOV EDX, DWORD PTR DS:[ESI]
00402680 |. 8D4424 14 LEA EAX, DWORD PTR SS:[ESP+0x14]
00402684 |. 50 PUSH EAX
00402685 |. 8BCE MOV ECX, ESI
00402687 |. FF52 08 CALL NEAR DWORD PTR DS:[EDX+0x8] ; //Buff
0040268A |. B9 20000000 MOV ECX, 0x20
0040268F |. 33C0 XOR EAX, EAX
00402691 |. 8D7C24 59 LEA EDI, DWORD PTR SS:[ESP+0x59]
00402695 |. C64424 58 00 MOV BYTE PTR SS:[ESP+0x58], 0x0
0040269A |. F3:AB REP STOS DWORD PTR ES:[EDI]
0040269C |. 5F POP EDI
0040269D |. 5E POP ESI
0040269E |. 85ED TEST EBP, EBP
004026A0 |. 5D POP EBP
004026A1 |. 5B POP EBX
004026A2 |. 75 14 JNZ SHORT MD5Crack.004026B8
004026A4 |. 8D4C24 48 LEA ECX, DWORD PTR SS:[ESP+0x48] ; //空Buff
004026A8 |. 8D5424 04 LEA EDX, DWORD PTR SS:[ESP+0x4] ; //新MD5
004026AC |. 51 PUSH ECX
004026AD |. 6A 10 PUSH 0x10
004026AF |. 52 PUSH EDX
004026B0 |. E8 DBFEFFFF CALL MD5Crack.00402590
004026B5 |. 83C4 0C ADD ESP, 0xC
004026B8 |> 8B8C24 400100>MOV ECX, DWORD PTR SS:[ESP+0x140]
004026BF |. 8D4424 48 LEA EAX, DWORD PTR SS:[ESP+0x48]
004026C3 |. 50 PUSH EAX ; /String2
004026C4 |. 51 PUSH ECX ; |String1
004026C5 |. FF15 00B04000 CALL NEAR DWORD PTR DS:[<&KERNEL32.lstrcpyA>] ; \lstrcpyA
004026CB |. 8B8C24 2C0100>MOV ECX, DWORD PTR SS:[ESP+0x12C]
004026D2 |. 64:890D 00000>MOV DWORD PTR FS:[0], ECX
004026D9 |. 81C4 38010000 ADD ESP, 0x138
004026DF \. C3 RETN

 

在算法call的子call 00402626中可以看到MD5_Init:

00401840 /$ 8BC1 MOV EAX, ECX
00401842 |. 33C9 XOR ECX, ECX
00401844 |. 8848 04 MOV BYTE PTR DS:[EAX+0x4], CL
00401847 |. C700 F0B04000 MOV DWORD PTR DS:[EAX], MD5Crack.0040B0F0
0040184D |. C740 08 01234>MOV DWORD PTR DS:[EAX+0x8], 0x67452301
00401854 |. C740 0C 89ABC>MOV DWORD PTR DS:[EAX+0xC], 0xEFCDAB89
0040185B |. C740 10 FEDCB>MOV DWORD PTR DS:[EAX+0x10], 0x98BADCFE
00401862 |. C740 14 76543>MOV DWORD PTR DS:[EAX+0x14], 0x10325476
00401869 |. 8948 18 MOV DWORD PTR DS:[EAX+0x18], ECX
0040186C |. 8948 1C MOV DWORD PTR DS:[EAX+0x1C], ECX
0040186F \. C3 RETN

 

在算法call的子call 00402687 |. FF52 08 CALL NEAR DWORD PTR DS:[EDX+0x8] ; //MD5_Final
可以看到标准MD5:
00401BEB . FF52 10 CALL NEAR DWORD PTR DS:[EDX+0x10] ; //MD5_Final

00401C60 . 83EC 10 SUB ESP, 0x10
00401C63 . 53 PUSH EBX
00401C64 . 55 PUSH EBP
00401C65 . 56 PUSH ESI
00401C66 . 8BF1 MOV ESI, ECX
00401C68 . 57 PUSH EDI
00401C69 . 8B5E 14 MOV EBX, DWORD PTR DS:[ESI+0x14]
00401C6C . 8B56 10 MOV EDX, DWORD PTR DS:[ESI+0x10]
00401C6F . 8B7E 0C MOV EDI, DWORD PTR DS:[ESI+0xC]
00401C72 . 8B6E 08 MOV EBP, DWORD PTR DS:[ESI+0x8]
00401C75 . 8B46 20 MOV EAX, DWORD PTR DS:[ESI+0x20] ; //取出4个初始常量
00401C78 . 8BCB MOV ECX, EBX ; //计算数据位用户名
00401C7A . 33CA XOR ECX, EDX
00401C7C . 23CF AND ECX, EDI
00401C7E . 33CB XOR ECX, EBX
00401C80 . 03CD ADD ECX, EBP
00401C82 . 8BEA MOV EBP, EDX
00401C84 . 33EF XOR EBP, EDI
00401C86 . 8D8C01 78A46A>LEA ECX, DWORD PTR DS:[ECX+EAX+0xD76AA478]
00401C8D . 8BC1 MOV EAX, ECX
00401C8F . C1E8 19 SHR EAX, 0x19
00401C92 . C1E1 07 SHL ECX, 0x7
00401C95 . 0BC1 OR EAX, ECX
00401C97 . 8B4E 24 MOV ECX, DWORD PTR DS:[ESI+0x24]
00401C9A . 03C7 ADD EAX, EDI
00401C9C . 23E8 AND EBP, EAX
00401C9E . 33EA XOR EBP, EDX
00401CA0 . 03E9 ADD EBP, ECX
00401CA2 . 8D9C2B 56B7C7>LEA EBX, DWORD PTR DS:[EBX+EBP+0xE8C7B756]
00401CA9 . 8BEF MOV EBP, EDI
00401CAB . 8BCB MOV ECX, EBX
00401CAD . 33E8 XOR EBP, EAX
00401CAF . C1E9 14 SHR ECX, 0x14
00401CB2 . C1E3 0C SHL EBX, 0xC
00401CB5 . 0BCB OR ECX, EBX
00401CB7 . 8B5E 28 MOV EBX, DWORD PTR DS:[ESI+0x28]
00401CBA . 03C8 ADD ECX, EAX
00401CBC . 23E9 AND EBP, ECX
00401CBE . 33EF XOR EBP, EDI
00401CC0 . 03EB ADD EBP, EBX
00401CC2 . 8D9C2A DB7020>LEA EBX, DWORD PTR DS:[EDX+EBP+0x242070DB]
00401CC9 . 8BE9 MOV EBP, ECX
00401CCB . 8BD3 MOV EDX, EBX
00401CCD . 33E8 XOR EBP, EAX
00401CCF . C1EA 0F SHR EDX, 0xF
00401CD2 . C1E3 11 SHL EBX, 0x11
00401CD5 . 0BD3 OR EDX, EBX
00401CD7 . 8B5E 2C MOV EBX, DWORD PTR DS:[ESI+0x2C]
00401CDA . 03D1 ADD EDX, ECX
00401CDC . 23EA AND EBP, EDX
00401CDE . 33E8 XOR EBP, EAX
00401CE0 . 03EB ADD EBP, EBX
00401CE2 . 8D9C2F EECEBD>LEA EBX, DWORD PTR DS:[EDI+EBP+0xC1BDCEEE]
00401CE9 . 8BE9 MOV EBP, ECX
00401CEB . 8BFB MOV EDI, EBX
00401CED . 33EA XOR EBP, EDX
00401CEF . C1E7 16 SHL EDI, 0x16
00401CF2 . C1EB 0A SHR EBX, 0xA
00401CF5 . 0BFB OR EDI, EBX
00401CF7 . 8B5E 30 MOV EBX, DWORD PTR DS:[ESI+0x30]
00401CFA . 03FA ADD EDI, EDX
00401CFC . 23EF AND EBP, EDI
00401CFE . 33E9 XOR EBP, ECX
00401D00 . 03EB ADD EBP, EBX
00401D02 . 8D8428 AF0F7C>LEA EAX, DWORD PTR DS:[EAX+EBP+0xF57C0FAF]
00401D09 . 8BEA MOV EBP, EDX
00401D0B . 8BD8 MOV EBX, EAX
00401D0D . 33EF XOR EBP, EDI
00401D0F . C1EB 19 SHR EBX, 0x19
00401D12 . C1E0 07 SHL EAX, 0x7
00401D15 . 0BD8 OR EBX, EAX
00401D17 . 8B46 34 MOV EAX, DWORD PTR DS:[ESI+0x34]
00401D1A . 03DF ADD EBX, EDI
00401D1C . 23EB AND EBP, EBX
00401D1E . 33EA XOR EBP, EDX
00401D20 . 03E8 ADD EBP, EAX
00401D22 . 8D8C29 2AC687>LEA ECX, DWORD PTR DS:[ECX+EBP+0x4787C62A]
00401D29 . 8BC1 MOV EAX, ECX
00401D2B . C1E8 14 SHR EAX, 0x14
00401D2E . C1E1 0C SHL ECX, 0xC
00401D31 . 0BC1 OR EAX, ECX
00401D33 . 03C3 ADD EAX, EBX
00401D35 . 8B4E 38 MOV ECX, DWORD PTR DS:[ESI+0x38]
00401D38 . 8BEF MOV EBP, EDI
00401D3A . 33EB XOR EBP, EBX
00401D3C . 23E8 AND EBP, EAX
00401D3E . 33EF XOR EBP, EDI
00401D40 . 03E9 ADD EBP, ECX
00401D42 . 8D942A 134630>LEA EDX, DWORD PTR DS:[EDX+EBP+0xA8304613]
00401D49 . 8BE8 MOV EBP, EAX
00401D4B . 8BCA MOV ECX, EDX
00401D4D . 33EB XOR EBP, EBX
00401D4F . C1E9 0F SHR ECX, 0xF
00401D52 . C1E2 11 SHL EDX, 0x11
00401D55 . 0BCA OR ECX, EDX
00401D57 . 8B56 3C MOV EDX, DWORD PTR DS:[ESI+0x3C]
00401D5A . 03C8 ADD ECX, EAX
00401D5C . 23E9 AND EBP, ECX
00401D5E . 33EB XOR EBP, EBX
00401D60 . 03EA ADD EBP, EDX
00401D62 . 8DBC2F 019546>LEA EDI, DWORD PTR DS:[EDI+EBP+0xFD469501]
00401D69 . 8BE8 MOV EBP, EAX
00401D6B . 8BD7 MOV EDX, EDI
00401D6D . 33E9 XOR EBP, ECX
00401D6F . C1E2 16 SHL EDX, 0x16
00401D72 . C1EF 0A SHR EDI, 0xA
00401D75 . 0BD7 OR EDX, EDI
00401D77 . 8B7E 40 MOV EDI, DWORD PTR DS:[ESI+0x40]
00401D7A . 03D1 ADD EDX, ECX
00401D7C . 23EA AND EBP, EDX
00401D7E . 33E8 XOR EBP, EAX
00401D80 . 03EF ADD EBP, EDI
00401D82 . 8D9C2B D89880>LEA EBX, DWORD PTR DS:[EBX+EBP+0x698098D8]
00401D89 . 8BE9 MOV EBP, ECX
00401D8B . 8BFB MOV EDI, EBX
00401D8D . 33EA XOR EBP, EDX
00401D8F . C1EF 19 SHR EDI, 0x19
00401D92 . C1E3 07 SHL EBX, 0x7
00401D95 . 0BFB OR EDI, EBX
00401D97 . 8B5E 44 MOV EBX, DWORD PTR DS:[ESI+0x44]
00401D9A . 03FA ADD EDI, EDX
00401D9C . 23EF AND EBP, EDI
00401D9E . 33E9 XOR EBP, ECX
00401DA0 . 03EB ADD EBP, EBX
00401DA2 . 8D8428 AFF744>LEA EAX, DWORD PTR DS:[EAX+EBP+0x8B44F7AF]
00401DA9 . 8BEA MOV EBP, EDX
00401DAB . 8BD8 MOV EBX, EAX
00401DAD . 33EF XOR EBP, EDI
00401DAF . C1EB 14 SHR EBX, 0x14
00401DB2 . C1E0 0C SHL EAX, 0xC
00401DB5 . 0BD8 OR EBX, EAX
00401DB7 . 8B46 48 MOV EAX, DWORD PTR DS:[ESI+0x48]
00401DBA . 03DF ADD EBX, EDI
00401DBC . 23EB AND EBP, EBX
00401DBE . 33EA XOR EBP, EDX
00401DC0 . 03E8 ADD EBP, EAX
00401DC2 . 8D8C29 B15BFF>LEA ECX, DWORD PTR DS:[ECX+EBP+0xFFFF5BB1]
00401DC9 . 8BEB MOV EBP, EBX
00401DCB . 8BC1 MOV EAX, ECX
00401DCD . 33EF XOR EBP, EDI
00401DCF . C1E8 0F SHR EAX, 0xF
00401DD2 . C1E1 11 SHL ECX, 0x11
00401DD5 . 0BC1 OR EAX, ECX
00401DD7 . 8B4E 4C MOV ECX, DWORD PTR DS:[ESI+0x4C]
00401DDA . 03C3 ADD EAX, EBX
00401DDC . 23E8 AND EBP, EAX
00401DDE . 33EF XOR EBP, EDI
00401DE0 . 03E9 ADD EBP, ECX
00401DE2 . 8D942A BED75C>LEA EDX, DWORD PTR DS:[EDX+EBP+0x895CD7BE]
00401DE9 . 8BEB MOV EBP, EBX
00401DEB . 8BCA MOV ECX, EDX
00401DED . 33E8 XOR EBP, EAX
00401DEF . C1E1 16 SHL ECX, 0x16
00401DF2 . C1EA 0A SHR EDX, 0xA
00401DF5 . 0BCA OR ECX, EDX
00401DF7 . 8B56 50 MOV EDX, DWORD PTR DS:[ESI+0x50]
00401DFA . 03C8 ADD ECX, EAX
00401DFC . 23E9 AND EBP, ECX
00401DFE . 33EB XOR EBP, EBX
00401E00 . 03EA ADD EBP, EDX
00401E02 . 8DBC2F 221190>LEA EDI, DWORD PTR DS:[EDI+EBP+0x6B901122]
00401E09 . 8BD7 MOV EDX, EDI
00401E0B . C1EA 19 SHR EDX, 0x19
00401E0E . C1E7 07 SHL EDI, 0x7
00401E11 . 0BD7 OR EDX, EDI
00401E13 . 8B7E 54 MOV EDI, DWORD PTR DS:[ESI+0x54]
00401E16 . 8BE8 MOV EBP, EAX
00401E18 . 03D1 ADD EDX, ECX
00401E1A . 33E9 XOR EBP, ECX
00401E1C . 23EA AND EBP, EDX
00401E1E . 33E8 XOR EBP, EAX
00401E20 . 03EF ADD EBP, EDI
00401E22 . 8B7E 58 MOV EDI, DWORD PTR DS:[ESI+0x58]
00401E25 . 8D9C2B 937198>LEA EBX, DWORD PTR DS:[EBX+EBP+0xFD987193]
00401E2C . 8BEB MOV EBP, EBX
00401E2E . C1ED 14 SHR EBP, 0x14
00401E31 . C1E3 0C SHL EBX, 0xC
00401E34 . 0BEB OR EBP, EBX
00401E36 . 8BD9 MOV EBX, ECX
00401E38 . 03EA ADD EBP, EDX
00401E3A . 33DA XOR EBX, EDX
00401E3C . 23DD AND EBX, EBP
00401E3E . 33D9 XOR EBX, ECX
00401E40 . 03DF ADD EBX, EDI
00401E42 . 8D8418 8E4379>LEA EAX, DWORD PTR DS:[EAX+EBX+0xA679438E]
00401E49 . 8BDD MOV EBX, EBP
00401E4B . 8BF8 MOV EDI, EAX
00401E4D . 33DA XOR EBX, EDX
00401E4F . C1EF 0F SHR EDI, 0xF
00401E52 . C1E0 11 SHL EAX, 0x11
00401E55 . 0BF8 OR EDI, EAX
00401E57 . 8B46 5C MOV EAX, DWORD PTR DS:[ESI+0x5C]
00401E5A . 03FD ADD EDI, EBP
00401E5C . 23DF AND EBX, EDI
00401E5E . 33DA XOR EBX, EDX
00401E60 . 03D8 ADD EBX, EAX
00401E62 . 8D8C19 2108B4>LEA ECX, DWORD PTR DS:[ECX+EBX+0x49B40821]
00401E69 . 8B5E 24 MOV EBX, DWORD PTR DS:[ESI+0x24]
00401E6C . 8BC1 MOV EAX, ECX
00401E6E . C1E0 16 SHL EAX, 0x16
00401E71 . C1E9 0A SHR ECX, 0xA
00401E74 . 0BC1 OR EAX, ECX
00401E76 . 8BCF MOV ECX, EDI
00401E78 . 03C7 ADD EAX, EDI
00401E7A . 33C8 XOR ECX, EAX
00401E7C . 23CD AND ECX, EBP
00401E7E . 33CF XOR ECX, EDI
00401E80 . 03CB ADD ECX, EBX
00401E82 . 8B5E 38 MOV EBX, DWORD PTR DS:[ESI+0x38]
00401E85 . 8D940A 62251E>LEA EDX, DWORD PTR DS:[EDX+ECX+0xF61E2562]
00401E8C . 8BCA MOV ECX, EDX
00401E8E . C1E9 1B SHR ECX, 0x1B
00401E91 . C1E2 05 SHL EDX, 0x5
00401E94 . 0BCA OR ECX, EDX
00401E96 . 8BD0 MOV EDX, EAX
00401E98 . 03C8 ADD ECX, EAX
00401E9A . 33D1 XOR EDX, ECX
00401E9C . 23D7 AND EDX, EDI
00401E9E . 33D0 XOR EDX, EAX
00401EA0 . 03D3 ADD EDX, EBX
00401EA2 . 8DAC2A 40B340>LEA EBP, DWORD PTR DS:[EDX+EBP+0xC040B340]
00401EA9 . 8BD5 MOV EDX, EBP
00401EAB . C1EA 17 SHR EDX, 0x17
00401EAE . C1E5 09 SHL EBP, 0x9
00401EB1 . 0BD5 OR EDX, EBP
00401EB3 . 8B6E 4C MOV EBP, DWORD PTR DS:[ESI+0x4C]
00401EB6 . 03D1 ADD EDX, ECX
00401EB8 . 8BDA MOV EBX, EDX
00401EBA . 33D9 XOR EBX, ECX
00401EBC . 23D8 AND EBX, EAX
00401EBE . 33D9 XOR EBX, ECX
00401EC0 . 03DD ADD EBX, EBP
00401EC2 . 8B6E 20 MOV EBP, DWORD PTR DS:[ESI+0x20]
00401EC5 . 8DBC1F 515A5E>LEA EDI, DWORD PTR DS:[EDI+EBX+0x265E5A51]
00401ECC . 8BDF MOV EBX, EDI
00401ECE . C1EB 12 SHR EBX, 0x12
00401ED1 . C1E7 0E SHL EDI, 0xE
00401ED4 . 0BDF OR EBX, EDI
00401ED6 . 8BFA MOV EDI, EDX
00401ED8 . 03DA ADD EBX, EDX
00401EDA . 33FB XOR EDI, EBX
00401EDC . 23F9 AND EDI, ECX
00401EDE . 33FA XOR EDI, EDX
00401EE0 . 03FD ADD EDI, EBP
00401EE2 . 8D8438 AAC7B6>LEA EAX, DWORD PTR DS:[EAX+EDI+0xE9B6C7AA]
00401EE9 . 8B6E 34 MOV EBP, DWORD PTR DS:[ESI+0x34]
00401EEC . 8BF8 MOV EDI, EAX
00401EEE . C1E7 14 SHL EDI, 0x14
00401EF1 . C1E8 0C SHR EAX, 0xC
00401EF4 . 0BF8 OR EDI, EAX
00401EF6 . 8BC3 MOV EAX, EBX
00401EF8 . 03FB ADD EDI, EBX
00401EFA . 33C7 XOR EAX, EDI
00401EFC . 23C2 AND EAX, EDX
00401EFE . 33C3 XOR EAX, EBX
00401F00 . 03C5 ADD EAX, EBP
00401F02 . 8B6E 48 MOV EBP, DWORD PTR DS:[ESI+0x48]
00401F05 . 8D8C01 5D102F>LEA ECX, DWORD PTR DS:[ECX+EAX+0xD62F105D]
00401F0C . 8BC1 MOV EAX, ECX
00401F0E . C1E8 1B SHR EAX, 0x1B
00401F11 . C1E1 05 SHL ECX, 0x5
00401F14 . 0BC1 OR EAX, ECX
00401F16 . 8BCF MOV ECX, EDI
00401F18 . 03C7 ADD EAX, EDI
00401F1A . 33C8 XOR ECX, EAX
00401F1C . 23CB AND ECX, EBX
00401F1E . 33CF XOR ECX, EDI
00401F20 . 03CD ADD ECX, EBP
00401F22 . 8B6E 5C MOV EBP, DWORD PTR DS:[ESI+0x5C]
00401F25 . 8D940A 531444>LEA EDX, DWORD PTR DS:[EDX+ECX+0x2441453]
00401F2C . 8BCA MOV ECX, EDX
00401F2E . C1E9 17 SHR ECX, 0x17
00401F31 . C1E2 09 SHL EDX, 0x9
00401F34 . 0BCA OR ECX, EDX
00401F36 . 03C8 ADD ECX, EAX
00401F38 . 8BD1 MOV EDX, ECX
00401F3A . 33D0 XOR EDX, EAX
00401F3C . 23D7 AND EDX, EDI
00401F3E . 33D0 XOR EDX, EAX
00401F40 . 03D5 ADD EDX, EBP
00401F42 . 8B6E 30 MOV EBP, DWORD PTR DS:[ESI+0x30]
00401F45 . 8D9C13 81E6A1>LEA EBX, DWORD PTR DS:[EBX+EDX+0xD8A1E681]
00401F4C . 8BD3 MOV EDX, EBX
00401F4E . C1EA 12 SHR EDX, 0x12
00401F51 . C1E3 0E SHL EBX, 0xE
00401F54 . 0BD3 OR EDX, EBX
00401F56 . 8BD9 MOV EBX, ECX
00401F58 . 03D1 ADD EDX, ECX
00401F5A . 33DA XOR EBX, EDX
00401F5C . 23D8 AND EBX, EAX
00401F5E . 33D9 XOR EBX, ECX
00401F60 . 03DD ADD EBX, EBP
00401F62 . 8B6E 44 MOV EBP, DWORD PTR DS:[ESI+0x44]
00401F65 . 8DBC1F C8FBD3>LEA EDI, DWORD PTR DS:[EDI+EBX+0xE7D3FBC8]
00401F6C . 8BDF MOV EBX, EDI
00401F6E . C1E3 14 SHL EBX, 0x14
00401F71 . C1EF 0C SHR EDI, 0xC
00401F74 . 0BDF OR EBX, EDI
00401F76 . 8BFA MOV EDI, EDX
00401F78 . 03DA ADD EBX, EDX
00401F7A . 33FB XOR EDI, EBX
00401F7C . 23F9 AND EDI, ECX
00401F7E . 33FA XOR EDI, EDX
00401F80 . 03FD ADD EDI, EBP
00401F82 . 8B6E 58 MOV EBP, DWORD PTR DS:[ESI+0x58]
00401F85 . 8D8438 E6CDE1>LEA EAX, DWORD PTR DS:[EAX+EDI+0x21E1CDE6]
00401F8C . 8BF8 MOV EDI, EAX
00401F8E . C1EF 1B SHR EDI, 0x1B
00401F91 . C1E0 05 SHL EAX, 0x5
00401F94 . 0BF8 OR EDI, EAX
00401F96 . 8BC3 MOV EAX, EBX
00401F98 . 03FB ADD EDI, EBX
00401F9A . 33C7 XOR EAX, EDI
00401F9C . 23C2 AND EAX, EDX
00401F9E . 33C3 XOR EAX, EBX
00401FA0 . 03C5 ADD EAX, EBP
00401FA2 . 8D8C01 D60737>LEA ECX, DWORD PTR DS:[ECX+EAX+0xC33707D6]
00401FA9 . 8BC1 MOV EAX, ECX
00401FAB . C1E8 17 SHR EAX, 0x17
00401FAE . C1E1 09 SHL ECX, 0x9
00401FB1 . 0BC1 OR EAX, ECX
00401FB3 . 03C7 ADD EAX, EDI
00401FB5 . 8BC8 MOV ECX, EAX
00401FB7 . 33CF XOR ECX, EDI
00401FB9 . 23CB AND ECX, EBX
00401FBB . 8B6E 2C MOV EBP, DWORD PTR DS:[ESI+0x2C]
00401FBE . 33CF XOR ECX, EDI
00401FC0 . 03CD ADD ECX, EBP
00401FC2 . 8B6E 40 MOV EBP, DWORD PTR DS:[ESI+0x40]
00401FC5 . 8D940A 870DD5>LEA EDX, DWORD PTR DS:[EDX+ECX+0xF4D50D87]
00401FCC . 8BCA MOV ECX, EDX
00401FCE . C1E9 12 SHR ECX, 0x12
00401FD1 . C1E2 0E SHL EDX, 0xE
00401FD4 . 0BCA OR ECX, EDX
00401FD6 . 8BD0 MOV EDX, EAX
00401FD8 . 03C8 ADD ECX, EAX
00401FDA . 33D1 XOR EDX, ECX
00401FDC . 23D7 AND EDX, EDI
00401FDE . 33D0 XOR EDX, EAX
00401FE0 . 03D5 ADD EDX, EBP
00401FE2 . 8B6E 54 MOV EBP, DWORD PTR DS:[ESI+0x54]
00401FE5 . 8D9C13 ED145A>LEA EBX, DWORD PTR DS:[EBX+EDX+0x455A14ED]
00401FEC . 8BD3 MOV EDX, EBX
00401FEE . C1E2 14 SHL EDX, 0x14
00401FF1 . C1EB 0C SHR EBX, 0xC
00401FF4 . 0BD3 OR EDX, EBX
00401FF6 . 8BD9 MOV EBX, ECX
00401FF8 . 03D1 ADD EDX, ECX
00401FFA . 33DA XOR EBX, EDX
00401FFC . 23D8 AND EBX, EAX
00401FFE . 33D9 XOR EBX, ECX
00402000 . 03DD ADD EBX, EBP
00402002 . 8B6E 28 MOV EBP, DWORD PTR DS:[ESI+0x28]
00402005 . 8DBC1F 05E9E3>LEA EDI, DWORD PTR DS:[EDI+EBX+0xA9E3E905]
0040200C . 8BDF MOV EBX, EDI
0040200E . C1EB 1B SHR EBX, 0x1B
00402011 . C1E7 05 SHL EDI, 0x5
00402014 . 0BDF OR EBX, EDI
00402016 . 8BFA MOV EDI, EDX
00402018 . 03DA ADD EBX, EDX
0040201A . 33FB XOR EDI, EBX
0040201C . 23F9 AND EDI, ECX
0040201E . 33FA XOR EDI, EDX
00402020 . 03FD ADD EDI, EBP
00402022 . 8B6E 3C MOV EBP, DWORD PTR DS:[ESI+0x3C]
00402025 . 8D8438 F8A3EF>LEA EAX, DWORD PTR DS:[EAX+EDI+0xFCEFA3F8]
0040202C . 8BF8 MOV EDI, EAX
0040202E . C1EF 17 SHR EDI, 0x17
00402031 . C1E0 09 SHL EAX, 0x9
00402034 . 0BF8 OR EDI, EAX
00402036 . 03FB ADD EDI, EBX
00402038 . 8BC7 MOV EAX, EDI
0040203A . 33C3 XOR EAX, EBX
0040203C . 23C2 AND EAX, EDX
0040203E . 33C3 XOR EAX, EBX
00402040 . 03C5 ADD EAX, EBP
00402042 . 8D8C01 D9026F>LEA ECX, DWORD PTR DS:[ECX+EAX+0x676F02D9]
00402049 . 8BC7 MOV EAX, EDI
0040204B . 8BE9 MOV EBP, ECX
0040204D . C1ED 12 SHR EBP, 0x12
00402050 . C1E1 0E SHL ECX, 0xE
00402053 . 0BE9 OR EBP, ECX
00402055 . 8B4E 50 MOV ECX, DWORD PTR DS:[ESI+0x50]
00402058 . 03EF ADD EBP, EDI
0040205A . 33C5 XOR EAX, EBP
0040205C . 894424 1C MOV DWORD PTR SS:[ESP+0x1C], EAX
00402060 . 23C3 AND EAX, EBX
00402062 . 33C7 XOR EAX, EDI
00402064 . 03C1 ADD EAX, ECX
00402066 . 8B4C24 1C MOV ECX, DWORD PTR SS:[ESP+0x1C]
0040206A . 8D9402 8A4C2A>LEA EDX, DWORD PTR DS:[EDX+EAX+0x8D2A4C8A]
00402071 . 8BC2 MOV EAX, EDX
00402073 . C1E0 14 SHL EAX, 0x14
00402076 . C1EA 0C SHR EDX, 0xC
00402079 . 0BC2 OR EAX, EDX
0040207B . 8B56 34 MOV EDX, DWORD PTR DS:[ESI+0x34]
0040207E . 03C5 ADD EAX, EBP
00402080 . 33C8 XOR ECX, EAX
00402082 . 03CA ADD ECX, EDX
00402084 . 8BD5 MOV EDX, EBP
00402086 . 8D9C0B 4239FA>LEA EBX, DWORD PTR DS:[EBX+ECX+0xFFFA3942]
0040208D . 8BCB MOV ECX, EBX
0040208F . C1E9 1C SHR ECX, 0x1C
00402092 . C1E3 04 SHL EBX, 0x4
00402095 . 0BCB OR ECX, EBX
00402097 . 03C8 ADD ECX, EAX
00402099 . 8B5E 40 MOV EBX, DWORD PTR DS:[ESI+0x40]
0040209C . 33D0 XOR EDX, EAX
0040209E . 33D1 XOR EDX, ECX
004020A0 . 03D3 ADD EDX, EBX
004020A2 . 8B5E 4C MOV EBX, DWORD PTR DS:[ESI+0x4C]
004020A5 . 8DBC17 81F671>LEA EDI, DWORD PTR DS:[EDI+EDX+0x8771F681]
004020AC . 8BD7 MOV EDX, EDI
004020AE . C1EA 15 SHR EDX, 0x15
004020B1 . C1E7 0B SHL EDI, 0xB
004020B4 . 0BD7 OR EDX, EDI
004020B6 . 03D1 ADD EDX, ECX
004020B8 . 8BFA MOV EDI, EDX
004020BA . 33F8 XOR EDI, EAX
004020BC . 33F9 XOR EDI, ECX
004020BE . 03FB ADD EDI, EBX
004020C0 . 8BDA MOV EBX, EDX
004020C2 . 8DAC2F 22619D>LEA EBP, DWORD PTR DS:[EDI+EBP+0x6D9D6122]
004020C9 . 8BFD MOV EDI, EBP
004020CB . C1EF 10 SHR EDI, 0x10
004020CE . C1E5 10 SHL EBP, 0x10
004020D1 . 0BFD OR EDI, EBP
004020D3 . 03FA ADD EDI, EDX
004020D5 . 33DF XOR EBX, EDI
004020D7 . 8BEB MOV EBP, EBX
004020D9 . 33E9 XOR EBP, ECX
004020DB . 036E 58 ADD EBP, DWORD PTR DS:[ESI+0x58]
004020DE . 8DAC28 0C38E5>LEA EBP, DWORD PTR DS:[EAX+EBP+0xFDE5380C]
004020E5 . 8BC5 MOV EAX, EBP
004020E7 . C1E0 17 SHL EAX, 0x17
004020EA . C1ED 09 SHR EBP, 0x9
004020ED . 0BC5 OR EAX, EBP
004020EF . 8B6E 24 MOV EBP, DWORD PTR DS:[ESI+0x24]
004020F2 . 03C7 ADD EAX, EDI
004020F4 . 33D8 XOR EBX, EAX
004020F6 . 03DD ADD EBX, EBP
004020F8 . 8B6E 30 MOV EBP, DWORD PTR DS:[ESI+0x30]
004020FB . 8D9C19 44EABE>LEA EBX, DWORD PTR DS:[ECX+EBX+0xA4BEEA44]
00402102 . 8BCB MOV ECX, EBX
00402104 . C1E9 1C SHR ECX, 0x1C
00402107 . C1E3 04 SHL EBX, 0x4
0040210A . 0BCB OR ECX, EBX
0040210C . 8BDF MOV EBX, EDI
0040210E . 03C8 ADD ECX, EAX
00402110 . 33D8 XOR EBX, EAX
00402112 . 33D9 XOR EBX, ECX
00402114 . 03DD ADD EBX, EBP
00402116 . 8B6E 3C MOV EBP, DWORD PTR DS:[ESI+0x3C]
00402119 . 8D9C1A A9CFDE>LEA EBX, DWORD PTR DS:[EDX+EBX+0x4BDECFA9]
00402120 . 8BD3 MOV EDX, EBX
00402122 . C1EA 15 SHR EDX, 0x15
00402125 . C1E3 0B SHL EBX, 0xB
00402128 . 0BD3 OR EDX, EBX
0040212A . 03D1 ADD EDX, ECX
0040212C . 8BDA MOV EBX, EDX
0040212E . 33D8 XOR EBX, EAX
00402130 . 33D9 XOR EBX, ECX
00402132 . 03DD ADD EBX, EBP
00402134 . 8D9C1F 604BBB>LEA EBX, DWORD PTR DS:[EDI+EBX+0xF6BB4B60]
0040213B . 8BFB MOV EDI, EBX
0040213D . C1EF 10 SHR EDI, 0x10
00402140 . C1E3 10 SHL EBX, 0x10
00402143 . 0BFB OR EDI, EBX
00402145 . 8BDA MOV EBX, EDX
00402147 . 03FA ADD EDI, EDX
00402149 . 33DF XOR EBX, EDI
0040214B . 8BEB MOV EBP, EBX
0040214D . 33E9 XOR EBP, ECX
0040214F . 036E 48 ADD EBP, DWORD PTR DS:[ESI+0x48]
00402152 . 8DAC28 70BCBF>LEA EBP, DWORD PTR DS:[EAX+EBP+0xBEBFBC70]
00402159 . 8BC5 MOV EAX, EBP
0040215B . C1E0 17 SHL EAX, 0x17
0040215E . C1ED 09 SHR EBP, 0x9
00402161 . 0BC5 OR EAX, EBP
00402163 . 8B6E 54 MOV EBP, DWORD PTR DS:[ESI+0x54]
00402166 . 03C7 ADD EAX, EDI
00402168 . 33D8 XOR EBX, EAX
0040216A . 03DD ADD EBX, EBP
0040216C . 8D9C19 C67E9B>LEA EBX, DWORD PTR DS:[ECX+EBX+0x289B7EC6]
00402173 . 8BCB MOV ECX, EBX
00402175 . C1E9 1C SHR ECX, 0x1C
00402178 . C1E3 04 SHL EBX, 0x4
0040217B . 8B6E 20 MOV EBP, DWORD PTR DS:[ESI+0x20]
0040217E . 0BCB OR ECX, EBX
00402180 . 8BDF MOV EBX, EDI
00402182 . 03C8 ADD ECX, EAX
00402184 . 33D8 XOR EBX, EAX
00402186 . 33D9 XOR EBX, ECX
00402188 . 03DD ADD EBX, EBP
0040218A . 8B6E 2C MOV EBP, DWORD PTR DS:[ESI+0x2C]
0040218D . 8D9C1A FA27A1>LEA EBX, DWORD PTR DS:[EDX+EBX+0xEAA127FA]
00402194 . 8BD3 MOV EDX, EBX
00402196 . C1E3 0B SHL EBX, 0xB
00402199 . C1EA 15 SHR EDX, 0x15
0040219C . 0BD3 OR EDX, EBX
0040219E . 03D1 ADD EDX, ECX
004021A0 . 8BDA MOV EBX, EDX
004021A2 . 33D8 XOR EBX, EAX
004021A4 . 33D9 XOR EBX, ECX
004021A6 . 03DD ADD EBX, EBP
004021A8 . 8D9C1F 8530EF>LEA EBX, DWORD PTR DS:[EDI+EBX+0xD4EF3085]
004021AF . 8BFB MOV EDI, EBX
004021B1 . C1EF 10 SHR EDI, 0x10
004021B4 . C1E3 10 SHL EBX, 0x10
004021B7 . 0BFB OR EDI, EBX
004021B9 . 8BDA MOV EBX, EDX
004021BB . 03FA ADD EDI, EDX
004021BD . 33DF XOR EBX, EDI
004021BF . 8BEB MOV EBP, EBX
004021C1 . 33E9 XOR EBP, ECX
004021C3 . 036E 38 ADD EBP, DWORD PTR DS:[ESI+0x38]
004021C6 . 8DAC28 051D88>LEA EBP, DWORD PTR DS:[EAX+EBP+0x4881D05]
004021CD . 8BC5 MOV EAX, EBP
004021CF . C1E0 17 SHL EAX, 0x17
004021D2 . C1ED 09 SHR EBP, 0x9
004021D5 . 0BC5 OR EAX, EBP
004021D7 . 8B6E 44 MOV EBP, DWORD PTR DS:[ESI+0x44]
004021DA . 03C7 ADD EAX, EDI
004021DC . 33D8 XOR EBX, EAX
004021DE . 03DD ADD EBX, EBP
004021E0 . 8B6E 50 MOV EBP, DWORD PTR DS:[ESI+0x50]
004021E3 . 8D9C19 39D0D4>LEA EBX, DWORD PTR DS:[ECX+EBX+0xD9D4D039]
004021EA . 8BCB MOV ECX, EBX
004021EC . C1E9 1C SHR ECX, 0x1C
004021EF . C1E3 04 SHL EBX, 0x4
004021F2 . 0BCB OR ECX, EBX
004021F4 . 8BDF MOV EBX, EDI
004021F6 . 03C8 ADD ECX, EAX
004021F8 . 33D8 XOR EBX, EAX
004021FA . 33D9 XOR EBX, ECX
004021FC . 03DD ADD EBX, EBP
004021FE . 8B6E 5C MOV EBP, DWORD PTR DS:[ESI+0x5C]
00402201 . 8D9C1A E599DB>LEA EBX, DWORD PTR DS:[EDX+EBX+0xE6DB99E5]
00402208 . 8BD3 MOV EDX, EBX
0040220A . C1EA 15 SHR EDX, 0x15
0040220D . C1E3 0B SHL EBX, 0xB
00402210 . 0BD3 OR EDX, EBX
00402212 . 03D1 ADD EDX, ECX
00402214 . 8BDA MOV EBX, EDX
00402216 . 33D8 XOR EBX, EAX
00402218 . 33D9 XOR EBX, ECX
0040221A . 03DD ADD EBX, EBP
0040221C . 8B6E 28 MOV EBP, DWORD PTR DS:[ESI+0x28]
0040221F . 8D9C1F F87CA2>LEA EBX, DWORD PTR DS:[EDI+EBX+0x1FA27CF8]
00402226 . 8BFB MOV EDI, EBX
00402228 . C1EF 10 SHR EDI, 0x10
0040222B . C1E3 10 SHL EBX, 0x10
0040222E . 0BFB OR EDI, EBX
00402230 . 8BDA MOV EBX, EDX
00402232 . 03FA ADD EDI, EDX
00402234 . 33DF XOR EBX, EDI
00402236 . 33D9 XOR EBX, ECX
00402238 . 03DD ADD EBX, EBP
0040223A . 8D9C18 6556AC>LEA EBX, DWORD PTR DS:[EAX+EBX+0xC4AC5665]
00402241 . 8BC3 MOV EAX, EBX
00402243 . C1E0 17 SHL EAX, 0x17
00402246 . C1EB 09 SHR EBX, 0x9
00402249 . 0BC3 OR EAX, EBX
0040224B . 8BDA MOV EBX, EDX
0040224D . 03C7 ADD EAX, EDI
0040224F . F7D3 NOT EBX
00402251 . 0BD8 OR EBX, EAX
00402253 . 33DF XOR EBX, EDI
00402255 . 8B6E 20 MOV EBP, DWORD PTR DS:[ESI+0x20]
00402258 . 03DD ADD EBX, EBP
0040225A . 8B6E 3C MOV EBP, DWORD PTR DS:[ESI+0x3C]
0040225D . 8D8C19 442229>LEA ECX, DWORD PTR DS:[ECX+EBX+0xF4292244]
00402264 . 8BD9 MOV EBX, ECX
00402266 . C1EB 1A SHR EBX, 0x1A
00402269 . C1E1 06 SHL ECX, 0x6
0040226C . 0BD9 OR EBX, ECX
0040226E . 8BCF MOV ECX, EDI
00402270 . 03D8 ADD EBX, EAX
00402272 . F7D1 NOT ECX
00402274 . 0BCB OR ECX, EBX
00402276 . 33C8 XOR ECX, EAX
00402278 . 03CD ADD ECX, EBP
0040227A . 8B6E 58 MOV EBP, DWORD PTR DS:[ESI+0x58]
0040227D . 8D940A 97FF2A>LEA EDX, DWORD PTR DS:[EDX+ECX+0x432AFF97]
00402284 . 8BCA MOV ECX, EDX
00402286 . C1E9 16 SHR ECX, 0x16
00402289 . C1E2 0A SHL EDX, 0xA
0040228C . 0BCA OR ECX, EDX
0040228E . 8BD0 MOV EDX, EAX
00402290 . 03CB ADD ECX, EBX
00402292 . F7D2 NOT EDX
00402294 . 0BD1 OR EDX, ECX
00402296 . 33D3 XOR EDX, EBX
00402298 . 03D5 ADD EDX, EBP
0040229A . 8B6E 34 MOV EBP, DWORD PTR DS:[ESI+0x34]
0040229D . 8DBC17 A72394>LEA EDI, DWORD PTR DS:[EDI+EDX+0xAB9423A7]
004022A4 . 8BD7 MOV EDX, EDI
004022A6 . C1EA 11 SHR EDX, 0x11
004022A9 . C1E7 0F SHL EDI, 0xF
004022AC . 0BD7 OR EDX, EDI
004022AE . 8BFB MOV EDI, EBX
004022B0 . 03D1 ADD EDX, ECX
004022B2 . F7D7 NOT EDI
004022B4 . 0BFA OR EDI, EDX
004022B6 . 33F9 XOR EDI, ECX
004022B8 . 03FD ADD EDI, EBP
004022BA . 8B6E 50 MOV EBP, DWORD PTR DS:[ESI+0x50]
004022BD . 8D8438 39A093>LEA EAX, DWORD PTR DS:[EAX+EDI+0xFC93A039]
004022C4 . 8BF8 MOV EDI, EAX
004022C6 . C1E7 15 SHL EDI, 0x15
004022C9 . C1E8 0B SHR EAX, 0xB
004022CC . 0BF8 OR EDI, EAX
004022CE . 8BC1 MOV EAX, ECX
004022D0 . 03FA ADD EDI, EDX
004022D2 . F7D0 NOT EAX
004022D4 . 0BC7 OR EAX, EDI
004022D6 . 33C2 XOR EAX, EDX
004022D8 . 03C5 ADD EAX, EBP
004022DA . 8B6E 2C MOV EBP, DWORD PTR DS:[ESI+0x2C]
004022DD . 8D8403 C3595B>LEA EAX, DWORD PTR DS:[EBX+EAX+0x655B59C3]
004022E4 . 8BD8 MOV EBX, EAX
004022E6 . C1EB 1A SHR EBX, 0x1A
004022E9 . C1E0 06 SHL EAX, 0x6
004022EC . 0BD8 OR EBX, EAX
004022EE . 8BC2 MOV EAX, EDX
004022F0 . 03DF ADD EBX, EDI
004022F2 . F7D0 NOT EAX
004022F4 . 0BC3 OR EAX, EBX
004022F6 . 33C7 XOR EAX, EDI
004022F8 . 03C5 ADD EAX, EBP
004022FA . 8B6E 48 MOV EBP, DWORD PTR DS:[ESI+0x48]
004022FD . 8D8401 92CC0C>LEA EAX, DWORD PTR DS:[ECX+EAX+0x8F0CCC92]
00402304 . 8BC8 MOV ECX, EAX
00402306 . C1E9 16 SHR ECX, 0x16
00402309 . C1E0 0A SHL EAX, 0xA
0040230C . 0BC8 OR ECX, EAX
0040230E . 8BC7 MOV EAX, EDI
00402310 . 03CB ADD ECX, EBX
00402312 . F7D0 NOT EAX
00402314 . 0BC1 OR EAX, ECX
00402316 . 33C3 XOR EAX, EBX
00402318 . 03C5 ADD EAX, EBP
0040231A . 8D8402 7DF4EF>LEA EAX, DWORD PTR DS:[EDX+EAX+0xFFEFF47D]
00402321 . 8BD0 MOV EDX, EAX
00402323 . C1EA 11 SHR EDX, 0x11
00402326 . C1E0 0F SHL EAX, 0xF
00402329 . 0BD0 OR EDX, EAX
0040232B . 8BC3 MOV EAX, EBX
0040232D . 03D1 ADD EDX, ECX
0040232F . 8B6E 24 MOV EBP, DWORD PTR DS:[ESI+0x24]
00402332 . 6A 15 PUSH 0x15
00402334 . F7D0 NOT EAX
00402336 . 0BC2 OR EAX, EDX
00402338 . 33C1 XOR EAX, ECX
0040233A . 03C5 ADD EAX, EBP
0040233C . 8B6E 40 MOV EBP, DWORD PTR DS:[ESI+0x40]
0040233F . 8DBC07 D15D84>LEA EDI, DWORD PTR DS:[EDI+EAX+0x85845DD1]
00402346 . 8BC7 MOV EAX, EDI
00402348 . C1E0 15 SHL EAX, 0x15
0040234B . C1EF 0B SHR EDI, 0xB
0040234E . 0BC7 OR EAX, EDI
00402350 . 8BF9 MOV EDI, ECX
00402352 . 03C2 ADD EAX, EDX
00402354 . F7D7 NOT EDI
00402356 . 0BF8 OR EDI, EAX
00402358 . 894424 14 MOV DWORD PTR SS:[ESP+0x14], EAX
0040235C . 33FA XOR EDI, EDX
0040235E . 03FD ADD EDI, EBP
00402360 . 8B6E 5C MOV EBP, DWORD PTR DS:[ESI+0x5C]
00402363 . 8D9C3B 4F7EA8>LEA EBX, DWORD PTR DS:[EBX+EDI+0x6FA87E4F]
0040236A . 8BFB MOV EDI, EBX
0040236C . C1EF 1A SHR EDI, 0x1A
0040236F . C1E3 06 SHL EBX, 0x6
00402372 . 0BFB OR EDI, EBX
00402374 . 8BDA MOV EBX, EDX
00402376 . 03F8 ADD EDI, EAX
00402378 . F7D3 NOT EBX
0040237A . 0BDF OR EBX, EDI
0040237C . 897C24 18 MOV DWORD PTR SS:[ESP+0x18], EDI
00402380 . 33D8 XOR EBX, EAX
00402382 . 03DD ADD EBX, EBP
00402384 . 8B6E 38 MOV EBP, DWORD PTR DS:[ESI+0x38]
00402387 . F7D0 NOT EAX
00402389 . 8D8C19 E0E62C>LEA ECX, DWORD PTR DS:[ECX+EBX+0xFE2CE6E0]
00402390 . 8BD9 MOV EBX, ECX
00402392 . C1EB 16 SHR EBX, 0x16
00402395 . C1E1 0A SHL ECX, 0xA
00402398 . 0BD9 OR EBX, ECX
0040239A . 03DF ADD EBX, EDI
0040239C . 0BC3 OR EAX, EBX
0040239E . 895C24 20 MOV DWORD PTR SS:[ESP+0x20], EBX
004023A2 . 33C7 XOR EAX, EDI
004023A4 . 03C5 ADD EAX, EBP
004023A6 . 8D8402 144301>LEA EAX, DWORD PTR DS:[EDX+EAX+0xA3014314]
004023AD . 8BC8 MOV ECX, EAX
004023AF . C1E9 11 SHR ECX, 0x11
004023B2 . C1E0 0F SHL EAX, 0xF
004023B5 . 0BC8 OR ECX, EAX
004023B7 . 8B46 54 MOV EAX, DWORD PTR DS:[ESI+0x54]
004023BA . 05 A111084E ADD EAX, 0x4E0811A1
004023BF . 03CB ADD ECX, EBX
004023C1 . 50 PUSH EAX
004023C2 . 57 PUSH EDI
004023C3 . 53 PUSH EBX
004023C4 . 894C24 28 MOV DWORD PTR SS:[ESP+0x28], ECX
004023C8 . 51 PUSH ECX
004023C9 . 8D4C24 24 LEA ECX, DWORD PTR SS:[ESP+0x24]
004023CD . 51 PUSH ECX
004023CE . 68 C0244000 PUSH MD5Crack.004024C0
004023D3 . E8 08010000 CALL MD5Crack.004024E0
004023D8 . 8B56 30 MOV EDX, DWORD PTR DS:[ESI+0x30]
004023DB . 8B4424 38 MOV EAX, DWORD PTR SS:[ESP+0x38]
004023DF . 8B4C24 34 MOV ECX, DWORD PTR SS:[ESP+0x34]
004023E3 . 81EA 7E81AC08 SUB EDX, 0x8AC817E
004023E9 . 6A 06 PUSH 0x6
004023EB . 52 PUSH EDX
004023EC . 8B5424 34 MOV EDX, DWORD PTR SS:[ESP+0x34]
004023F0 . 50 PUSH EAX
004023F1 . 51 PUSH ECX
004023F2 . 8D4424 40 LEA EAX, DWORD PTR SS:[ESP+0x40]
004023F6 . 52 PUSH EDX
004023F7 . 50 PUSH EAX
004023F8 . 68 C0244000 PUSH MD5Crack.004024C0
004023FD . E8 DE000000 CALL MD5Crack.004024E0
00402402 . 8B4E 4C MOV ECX, DWORD PTR DS:[ESI+0x4C]
00402405 . 8B5424 50 MOV EDX, DWORD PTR SS:[ESP+0x50]
00402409 . 81E9 CB0DC542 SUB ECX, 0x42C50DCB
0040240F . 6A 0A PUSH 0xA
00402411 . 51 PUSH ECX
00402412 . 52 PUSH EDX
00402413 . 8B4424 54 MOV EAX, DWORD PTR SS:[ESP+0x54]
00402417 . 8B4C24 58 MOV ECX, DWORD PTR SS:[ESP+0x58]
0040241B . 50 PUSH EAX
0040241C . 8D5424 64 LEA EDX, DWORD PTR SS:[ESP+0x64]
00402420 . 51 PUSH ECX
00402421 . 52 PUSH EDX
00402422 . 68 C0244000 PUSH MD5Crack.004024C0
00402427 . E8 B4000000 CALL MD5Crack.004024E0
0040242C . 8B46 28 MOV EAX, DWORD PTR DS:[ESI+0x28]
0040242F . 8B4C24 64 MOV ECX, DWORD PTR SS:[ESP+0x64]
00402433 . 8B5424 68 MOV EDX, DWORD PTR SS:[ESP+0x68]
00402437 . 83C4 54 ADD ESP, 0x54
0040243A . 05 BBD2D72A ADD EAX, 0x2AD7D2BB
0040243F . 6A 0F PUSH 0xF
00402441 . 50 PUSH EAX
00402442 . 8B4424 24 MOV EAX, DWORD PTR SS:[ESP+0x24]
00402446 . 51 PUSH ECX
00402447 . 52 PUSH EDX
00402448 . 8D4C24 28 LEA ECX, DWORD PTR SS:[ESP+0x28]
0040244C . 50 PUSH EAX
0040244D . 51 PUSH ECX
0040244E . 68 C0244000 PUSH MD5Crack.004024C0
00402453 . E8 88000000 CALL MD5Crack.004024E0
00402458 . 8B56 44 MOV EDX, DWORD PTR DS:[ESI+0x44]
0040245B . 8B4424 30 MOV EAX, DWORD PTR SS:[ESP+0x30]
0040245F . 8B4C24 38 MOV ECX, DWORD PTR SS:[ESP+0x38]
00402463 . 81EA 6F2C7914 SUB EDX, 0x14792C6F
00402469 . 6A 15 PUSH 0x15
0040246B . 52 PUSH EDX
0040246C . 8B5424 3C MOV EDX, DWORD PTR SS:[ESP+0x3C]
00402470 . 50 PUSH EAX
00402471 . 51 PUSH ECX
00402472 . 8D4424 3C LEA EAX, DWORD PTR SS:[ESP+0x3C]
00402476 . 52 PUSH EDX
00402477 . 50 PUSH EAX
00402478 . 68 C0244000 PUSH MD5Crack.004024C0
0040247D . E8 5E000000 CALL MD5Crack.004024E0
00402482 . 8B4C24 4C MOV ECX, DWORD PTR SS:[ESP+0x4C]
00402486 . 8B5E 08 MOV EBX, DWORD PTR DS:[ESI+0x8]
00402489 . 8B4424 50 MOV EAX, DWORD PTR SS:[ESP+0x50]
0040248D . 8B5424 48 MOV EDX, DWORD PTR SS:[ESP+0x48]
00402491 . 8B7E 0C MOV EDI, DWORD PTR DS:[ESI+0xC]
00402494 . 03D9 ADD EBX, ECX
00402496 . 8B4E 10 MOV ECX, DWORD PTR DS:[ESI+0x10]
00402499 . 83C4 38 ADD ESP, 0x38
0040249C . 03C8 ADD ECX, EAX
0040249E . 8B46 14 MOV EAX, DWORD PTR DS:[ESI+0x14]
004024A1 . 894E 10 MOV DWORD PTR DS:[ESI+0x10], ECX
004024A4 . 8B4C24 1C MOV ECX, DWORD PTR SS:[ESP+0x1C]
004024A8 . 03FA ADD EDI, EDX
004024AA . 03C1 ADD EAX, ECX
004024AC . 897E 0C MOV DWORD PTR DS:[ESI+0xC], EDI
004024AF . 895E 08 MOV DWORD PTR DS:[ESI+0x8], EBX
004024B2 . 8946 14 MOV DWORD PTR DS:[ESI+0x14], EAX
004024B5 . 5F POP EDI
004024B6 . 5E POP ESI
004024B7 . 5D POP EBP
004024B8 . 5B POP EBX
004024B9 . 83C4 10 ADD ESP, 0x10
004024BC . C3 RETN
004024BD 90 NOP
004024BE 90 NOP
004024BF 90 NOP
004024C0 . 8B4424 0C MOV EAX, DWORD PTR SS:[ESP+0xC]
004024C4 . 8B4C24 04 MOV ECX, DWORD PTR SS:[ESP+0x4]
004024C8 . F7D0 NOT EAX
004024CA . 0BC1 OR EAX, ECX
004024CC . 8B4C24 08 MOV ECX, DWORD PTR SS:[ESP+0x8]
004024D0 . 33C1 XOR EAX, ECX
004024D2 . C3 RETN

 

最后将16字节MD5值变换成32字节的算法CALL在 004026B0 |. E8 DBFEFFFF CALL MD5Crack.00402590

00402590 /$ 8B4424 08 MOV EAX, DWORD PTR SS:[ESP+0x8]
00402594 |. 53 PUSH EBX
00402595 |. 8B5C24 08 MOV EBX, DWORD PTR SS:[ESP+0x8]
00402599 |. 55 PUSH EBP
0040259A |. 8B6C24 14 MOV EBP, DWORD PTR SS:[ESP+0x14]
0040259E |. 85C0 TEST EAX, EAX
004025A0 |. C645 00 00 MOV BYTE PTR SS:[EBP], 0x0
004025A4 |. 7E 4D JLE SHORT MD5Crack.004025F3
004025A6 |. 56 PUSH ESI
004025A7 |. 57 PUSH EDI
004025A8 |. 894424 1C MOV DWORD PTR SS:[ESP+0x1C], EAX
004025AC |> 8A0B /MOV CL, BYTE PTR DS:[EBX]
004025AE |. 8D4424 14 |LEA EAX, DWORD PTR SS:[ESP+0x14]
004025B2 |. 50 |PUSH EAX
004025B3 |. 51 |PUSH ECX
004025B4 |. E8 A7FFFFFF |CALL MD5Crack.00402560 ; //取MD5的第1字节,分别取出高低4位作为下标查表
004025B9 |. 8D7C24 1C |LEA EDI, DWORD PTR SS:[ESP+0x1C] ; //查表结果放入新Buff
004025BD |. 83C9 FF |OR ECX, 0xFFFFFFFF
004025C0 |. 33C0 |XOR EAX, EAX
004025C2 |. 83C4 08 |ADD ESP, 0x8
004025C5 |. F2:AE |REPNE SCAS BYTE PTR ES:[EDI]
004025C7 |. F7D1 |NOT ECX
004025C9 |. 2BF9 |SUB EDI, ECX
004025CB |. 8BF7 |MOV ESI, EDI
004025CD |. 8BD1 |MOV EDX, ECX
004025CF |. 8BFD |MOV EDI, EBP
004025D1 |. 83C9 FF |OR ECX, 0xFFFFFFFF
004025D4 |. F2:AE |REPNE SCAS BYTE PTR ES:[EDI]
004025D6 |. 8BCA |MOV ECX, EDX
004025D8 |. 4F |DEC EDI
004025D9 |. C1E9 02 |SHR ECX, 0x2
004025DC |. F3:A5 |REP MOVS DWORD PTR ES:[EDI], DWORD PTR DS:[ESI]
004025DE |. 8B4424 1C |MOV EAX, DWORD PTR SS:[ESP+0x1C]
004025E2 |. 8BCA |MOV ECX, EDX
004025E4 |. 83E1 03 |AND ECX, 0x3
004025E7 |. 43 |INC EBX
004025E8 |. 48 |DEC EAX
004025E9 |. F3:A4 |REP MOVS BYTE PTR ES:[EDI], BYTE PTR DS:[ESI]
004025EB |. 894424 1C |MOV DWORD PTR SS:[ESP+0x1C], EAX
004025EF |.^ 75 BB \JNZ SHORT MD5Crack.004025AC
004025F1 |. 5F POP EDI ; //将16字节的MD5转换成32字节的
004025F2 |. 5E POP ESI
004025F3 |> 5D POP EBP
004025F4 |. 5B POP EBX
004025F5 \. C3 RETN

 

最后注册码和转换后32字节的MD5比较:

004026E0 /$ 81EC 00020000 SUB ESP, 0x200
004026E6 |. 56 PUSH ESI
004026E7 |. 57 PUSH EDI
004026E8 |. B9 3F000000 MOV ECX, 0x3F
004026ED |. 33C0 XOR EAX, EAX
004026EF |. 8D7C24 09 LEA EDI, DWORD PTR SS:[ESP+0x9]
004026F3 |. C64424 08 00 MOV BYTE PTR SS:[ESP+0x8], 0x0
004026F8 |. F3:AB REP STOS DWORD PTR ES:[EDI]
004026FA |. 66:AB STOS WORD PTR ES:[EDI]
004026FC |. AA STOS BYTE PTR ES:[EDI]
004026FD |. B9 3F000000 MOV ECX, 0x3F
00402702 |. 33C0 XOR EAX, EAX
00402704 |. 8DBC24 090100>LEA EDI, DWORD PTR SS:[ESP+0x109]
0040270B |. C68424 080100>MOV BYTE PTR SS:[ESP+0x108], 0x0
00402713 |. F3:AB REP STOS DWORD PTR ES:[EDI]
00402715 |. 66:AB STOS WORD PTR ES:[EDI]
00402717 |. 8B35 00B04000 MOV ESI, DWORD PTR DS:[<&KERNEL32.lstrcpyA>] ; kernel32.lstrcpyA
0040271D |. 8D4C24 08 LEA ECX, DWORD PTR SS:[ESP+0x8]
00402721 |. AA STOS BYTE PTR ES:[EDI]
00402722 |. 8B8424 0C0200>MOV EAX, DWORD PTR SS:[ESP+0x20C]
00402729 |. 50 PUSH EAX ; /String2
0040272A |. 51 PUSH ECX ; |String1
0040272B |. FFD6 CALL NEAR ESI ; \lstrcpyA
0040272D |. 8B9424 100200>MOV EDX, DWORD PTR SS:[ESP+0x210]
00402734 |. 8D8424 080100>LEA EAX, DWORD PTR SS:[ESP+0x108]
0040273B |. 52 PUSH EDX ; /String2
0040273C |. 50 PUSH EAX ; |String1
0040273D |. FFD6 CALL NEAR ESI ; \lstrcpyA
0040273F |. 8DBC24 080100>LEA EDI, DWORD PTR SS:[ESP+0x108]
00402746 |. 83C9 FF OR ECX, 0xFFFFFFFF
00402749 |. 33C0 XOR EAX, EAX
0040274B |. F2:AE REPNE SCAS BYTE PTR ES:[EDI]
0040274D |. F7D1 NOT ECX
0040274F |. 49 DEC ECX ; //MD5长度
00402750 |. 8D7C24 08 LEA EDI, DWORD PTR SS:[ESP+0x8]
00402754 |. 8BD1 MOV EDX, ECX
00402756 |. 83C9 FF OR ECX, 0xFFFFFFFF
00402759 |. F2:AE REPNE SCAS BYTE PTR ES:[EDI]
0040275B |. F7D1 NOT ECX
0040275D |. 49 DEC ECX ; //注册码长度
0040275E |. 3BCA CMP ECX, EDX
00402760 |. 75 40 JNZ SHORT MD5Crack.004027A2 ; //两者长度不等直接返回0
00402762 |. 8D7C24 08 LEA EDI, DWORD PTR SS:[ESP+0x8]
00402766 |. 83C9 FF OR ECX, 0xFFFFFFFF
00402769 |. 33D2 XOR EDX, EDX
0040276B |. F2:AE REPNE SCAS BYTE PTR ES:[EDI]
0040276D |. F7D1 NOT ECX
0040276F |. 49 DEC ECX
00402770 |. 74 22 JE SHORT MD5Crack.00402794
00402772 |> 8A4414 08 /MOV AL, BYTE PTR SS:[ESP+EDX+0x8]
00402776 |. 8A8C14 080100>|MOV CL, BYTE PTR SS:[ESP+EDX+0x108]
0040277D |. 3AC1 |CMP AL, CL
0040277F |. 75 21 |JNZ SHORT MD5Crack.004027A2
00402781 |. 8D7C24 08 |LEA EDI, DWORD PTR SS:[ESP+0x8]
00402785 |. 83C9 FF |OR ECX, 0xFFFFFFFF ; //按字节比较
00402788 |. 33C0 |XOR EAX, EAX
0040278A |. 42 |INC EDX
0040278B |. F2:AE |REPNE SCAS BYTE PTR ES:[EDI]
0040278D |. F7D1 |NOT ECX
0040278F |. 49 |DEC ECX
00402790 |. 3BD1 |CMP EDX, ECX
00402792 |.^ 72 DE \JB SHORT MD5Crack.00402772
00402794 |> 5F POP EDI
00402795 |. B8 01000000 MOV EAX, 0x1 ; //都相等返回为1
0040279A |. 5E POP ESI
0040279B |. 81C4 00020000 ADD ESP, 0x200
004027A1 |. C3 RETN
004027A2 |> 5F POP EDI
004027A3 |. 33C0 XOR EAX, EAX
004027A5 |. 5E POP ESI
004027A6 |. 81C4 00020000 ADD ESP, 0x200
004027AC \. C3 RETN

------------------------------------------------------------------------
【破解总结】软件使用标准MD5算法对输入的用户名进行计算,将计算后的16字节MD5值转换成32字节即为真正地注册码。
------------------------------------------------------------------------
【版权声明】无

[MD5算法练习] MD5CrackMe算法分析

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原文地址:http://www.cnblogs.com/dacainiao/p/5551226.html

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