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[原创]Excel Workbook Splitter V1.05注册算法简析
发表于: 2008-9-23 12:12 6526

[原创]Excel Workbook Splitter V1.05注册算法简析

蚊香 活跃值
3
2008-9-23 12:12
6526

【文章标题】: Excel Workbook Splitter V1.05注册算法简析
【文章作者】: 蚊香
【作者邮箱】: xpi386com@gmail.com
【作者主页】: http://www.xpi386.com
【软件大小】: 1.01MB
【下载地址】: http://www.leleware.com/download/ExcelWorkbookSplitter105.exe
【使用工具】: PEiD,VBExplorer,OllyDBG,计算器
【操作平台】: D版XP-SP3
【软件介绍】: 一个处理Excel表格的工具.
【作者声明】: 只是感兴趣，没有其他目的。失误之处敬请诸位大侠赐教!
--------------------------------------------------------------------------------
【详细过程】
  PEiD看了一下,VB,于是用VBExplorer找到‘Register’单击事件响应代码开始处004137B0下断开始跟踪.
  

  004137B0   > \55            PUSH EBP                                 ;  一大堆垃圾代码影响大家的眼球
  004137B1   .  8BEC          MOV EBP,ESP
  004137B3   .  83EC 0C       SUB ESP,0C
  004137B6   .  68 E6194000   PUSH <JMP.&MSVBVM60.__vbaExceptHandler>  ;  SE 处理程序安装
  004137BB   .  64:A1 0000000>MOV EAX,DWORD PTR FS:[0]
  004137C1   .  50            PUSH EAX
  004137C2   .  64:8925 00000>MOV DWORD PTR FS:[0],ESP
  004137C9   .  81EC B0000000 SUB ESP,0B0
  004137CF   .  53            PUSH EBX
  004137D0   .  56            PUSH ESI
  004137D1   .  57            PUSH EDI
  004137D2   .  8965 F4       MOV DWORD PTR SS:[EBP-C],ESP
  004137D5   .  C745 F8 38124>MOV DWORD PTR SS:[EBP-8],ExcelWor.004012>
  004137DC   .  8B75 08       MOV ESI,DWORD PTR SS:[EBP+8]
  004137DF   .  8BC6          MOV EAX,ESI
  004137E1   .  83E0 01       AND EAX,1
  004137E4   .  8945 FC       MOV DWORD PTR SS:[EBP-4],EAX
  004137E7   .  83E6 FE       AND ESI,FFFFFFFE
  004137EA   .  56            PUSH ESI
  004137EB   .  8975 08       MOV DWORD PTR SS:[EBP+8],ESI
  004137EE   .  8B0E          MOV ECX,DWORD PTR DS:[ESI]
  004137F0   .  FF51 04       CALL DWORD PTR DS:[ECX+4]
  004137F3   .  8B16          MOV EDX,DWORD PTR DS:[ESI]
  004137F5   .  33DB          XOR EBX,EBX
  004137F7   .  56            PUSH ESI
  004137F8   .  895D E8       MOV DWORD PTR SS:[EBP-18],EBX
  004137FB   .  895D E4       MOV DWORD PTR SS:[EBP-1C],EBX
  004137FE   .  895D E0       MOV DWORD PTR SS:[EBP-20],EBX
  00413801   .  895D DC       MOV DWORD PTR SS:[EBP-24],EBX
  00413804   .  895D CC       MOV DWORD PTR SS:[EBP-34],EBX
  00413807   .  895D BC       MOV DWORD PTR SS:[EBP-44],EBX
  0041380A   .  895D AC       MOV DWORD PTR SS:[EBP-54],EBX
  0041380D   .  895D 9C       MOV DWORD PTR SS:[EBP-64],EBX
  00413810   .  895D 8C       MOV DWORD PTR SS:[EBP-74],EBX
  00413813   .  899D 7CFFFFFF MOV DWORD PTR SS:[EBP-84],EBX
  00413819   .  899D 58FFFFFF MOV DWORD PTR SS:[EBP-A8],EBX
  0041381F   .  FF92 0C030000 CALL DWORD PTR DS:[EDX+30C]
  00413825   .  50            PUSH EAX
  00413826   .  8D45 DC       LEA EAX,DWORD PTR SS:[EBP-24]
  00413829   .  50            PUSH EAX
  0041382A   .  FF15 6C104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaObjSe>;  MSVBVM60.__vbaObjSet
  00413830   .  8BF8          MOV EDI,EAX
  00413832   .  8D55 E8       LEA EDX,DWORD PTR SS:[EBP-18]
  00413835   .  52            PUSH EDX
  00413836   .  57            PUSH EDI
  00413837   .  8B0F          MOV ECX,DWORD PTR DS:[EDI]
  00413839   .  FF91 A0000000 CALL DWORD PTR DS:[ECX+A0]
  0041383F   .  3BC3          CMP EAX,EBX
  00413841   .  DBE2          FCLEX
  00413843   .  7D 12         JGE SHORT ExcelWor.00413857
  00413845   .  68 A0000000   PUSH 0A0
  0041384A   .  68 88564000   PUSH ExcelWor.00405688
  0041384F   .  57            PUSH EDI
  00413850   .  50            PUSH EAX
  00413851   .  FF15 44104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaHresu>;  MSVBVM60.__vbaHresultCheckObj
  00413857   >  8B45 E8       MOV EAX,DWORD PTR SS:[EBP-18]            ;  用户名
  0041385A   .  8D4D BC       LEA ECX,DWORD PTR SS:[EBP-44]
  0041385D   .  8945 D4       MOV DWORD PTR SS:[EBP-2C],EAX
  00413860   .  8D45 CC       LEA EAX,DWORD PTR SS:[EBP-34]
  00413863   .  50            PUSH EAX
  00413864   .  51            PUSH ECX
  00413865   .  895D E8       MOV DWORD PTR SS:[EBP-18],EBX
  00413868   .  C745 CC 08000>MOV DWORD PTR SS:[EBP-34],8
  0041386F   .  FF15 84104000 CALL DWORD PTR DS:[<&MSVBVM60.#520>]     ;  MSVBVM60.rtcTrimVar
  00413875   .  8B15 20604200 MOV EDX,DWORD PTR DS:[426020]
  0041387B   .  8D85 58FFFFFF LEA EAX,DWORD PTR SS:[EBP-A8]
  00413881   .  8D4D BC       LEA ECX,DWORD PTR SS:[EBP-44]
  00413884   .  50            PUSH EAX
  00413885   .  8B3A          MOV EDI,DWORD PTR DS:[EDX]
  00413887   .  8D55 E4       LEA EDX,DWORD PTR SS:[EBP-1C]
  0041388A   .  51            PUSH ECX
  0041388B   .  52            PUSH EDX
  0041388C   .  FF15 20114000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrVa>;  MSVBVM60.__vbaStrVarVal
  00413892   .  50            PUSH EAX
  00413893   .  A1 20604200   MOV EAX,DWORD PTR DS:[426020]
  00413898   .  68 4C524000   PUSH ExcelWor.0040524C                   ;  UNICODE "LicenseName"
  0041389D   .  50            PUSH EAX
  0041389E   .  FF57 20       CALL DWORD PTR DS:[EDI+20]
  004138A1   .  3BC3          CMP EAX,EBX
  004138A3   .  DBE2          FCLEX
  004138A5   .  7D 15         JGE SHORT ExcelWor.004138BC
  004138A7   .  8B0D 20604200 MOV ECX,DWORD PTR DS:[426020]
  004138AD   .  6A 20         PUSH 20
  004138AF   .  68 7C524000   PUSH ExcelWor.0040527C
  004138B4   .  51            PUSH ECX
  004138B5   .  50            PUSH EAX
  004138B6   .  FF15 44104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaHresu>;  MSVBVM60.__vbaHresultCheckObj
  004138BC   >  8D4D E4       LEA ECX,DWORD PTR SS:[EBP-1C]
  004138BF   .  FF15 D8114000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeS>;  MSVBVM60.__vbaFreeStr
  004138C5   .  8D4D DC       LEA ECX,DWORD PTR SS:[EBP-24]
  004138C8   .  FF15 DC114000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeO>;  MSVBVM60.__vbaFreeObj
  004138CE   .  8B1D 24104000 MOV EBX,DWORD PTR DS:[<&MSVBVM60.__vbaFr>;  MSVBVM60.__vbaFreeVarList
  004138D4   .  8D55 BC       LEA EDX,DWORD PTR SS:[EBP-44]
  004138D7   .  8D45 CC       LEA EAX,DWORD PTR SS:[EBP-34]
  004138DA   .  52            PUSH EDX
  004138DB   .  50            PUSH EAX
  004138DC   .  6A 02         PUSH 2
  004138DE   .  FFD3          CALL EBX                                 ;  <&MSVBVM60.__vbaFreeVarList>
  004138E0   .  8B0E          MOV ECX,DWORD PTR DS:[ESI]
  004138E2   .  83C4 0C       ADD ESP,0C
  004138E5   .  56            PUSH ESI
  004138E6   .  FF91 08030000 CALL DWORD PTR DS:[ECX+308]
  004138EC   .  8D55 DC       LEA EDX,DWORD PTR SS:[EBP-24]
  004138EF   .  50            PUSH EAX
  004138F0   .  52            PUSH EDX
  004138F1   .  FF15 6C104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaObjSe>;  MSVBVM60.__vbaObjSet
  004138F7   .  8BF8          MOV EDI,EAX
  004138F9   .  8D4D E8       LEA ECX,DWORD PTR SS:[EBP-18]
  004138FC   .  51            PUSH ECX
  004138FD   .  57            PUSH EDI
  004138FE   .  8B07          MOV EAX,DWORD PTR DS:[EDI]
  00413900   .  FF90 A0000000 CALL DWORD PTR DS:[EAX+A0]
  00413906   .  85C0          TEST EAX,EAX
  00413908   .  DBE2          FCLEX
  0041390A   .  7D 12         JGE SHORT ExcelWor.0041391E
  0041390C   .  68 A0000000   PUSH 0A0
  00413911   .  68 88564000   PUSH ExcelWor.00405688
  00413916   .  57            PUSH EDI
  00413917   .  50            PUSH EAX
  00413918   .  FF15 44104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaHresu>;  MSVBVM60.__vbaHresultCheckObj
  0041391E   >  8B45 E8       MOV EAX,DWORD PTR SS:[EBP-18]            ;  假码
  00413921   .  8D55 CC       LEA EDX,DWORD PTR SS:[EBP-34]
  00413924   .  8945 D4       MOV DWORD PTR SS:[EBP-2C],EAX
  00413927   .  8D45 BC       LEA EAX,DWORD PTR SS:[EBP-44]
  0041392A   .  52            PUSH EDX
  0041392B   .  50            PUSH EAX
  0041392C   .  C745 E8 00000>MOV DWORD PTR SS:[EBP-18],0
  00413933   .  C745 CC 08000>MOV DWORD PTR SS:[EBP-34],8
  0041393A   .  FF15 84104000 CALL DWORD PTR DS:[<&MSVBVM60.#520>]     ;  MSVBVM60.rtcTrimVar
  00413940   .  8B0D 20604200 MOV ECX,DWORD PTR DS:[426020]
  00413946   .  8D95 58FFFFFF LEA EDX,DWORD PTR SS:[EBP-A8]
  0041394C   .  8D45 BC       LEA EAX,DWORD PTR SS:[EBP-44]
  0041394F   .  52            PUSH EDX
  00413950   .  8B39          MOV EDI,DWORD PTR DS:[ECX]
  00413952   .  8D4D E4       LEA ECX,DWORD PTR SS:[EBP-1C]
  00413955   .  50            PUSH EAX
  00413956   .  51            PUSH ECX
  00413957   .  FF15 20114000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaStrVa>;  MSVBVM60.__vbaStrVarVal
  0041395D   .  8B15 20604200 MOV EDX,DWORD PTR DS:[426020]
  00413963   .  50            PUSH EAX
  00413964   .  68 90524000   PUSH ExcelWor.00405290                   ;  UNICODE "LicenseCode"
  00413969   .  52            PUSH EDX
  0041396A   .  FF57 20       CALL DWORD PTR DS:[EDI+20]
  0041396D   .  85C0          TEST EAX,EAX
  0041396F   .  DBE2          FCLEX
  00413971   .  7D 15         JGE SHORT ExcelWor.00413988
  00413973   .  8B0D 20604200 MOV ECX,DWORD PTR DS:[426020]
  00413979   .  6A 20         PUSH 20
  0041397B   .  68 7C524000   PUSH ExcelWor.0040527C
  00413980   .  51            PUSH ECX
  00413981   .  50            PUSH EAX
  00413982   .  FF15 44104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaHresu>;  MSVBVM60.__vbaHresultCheckObj
  00413988   >  8D4D E4       LEA ECX,DWORD PTR SS:[EBP-1C]
  0041398B   .  FF15 D8114000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeS>;  MSVBVM60.__vbaFreeStr
  00413991   .  8D4D DC       LEA ECX,DWORD PTR SS:[EBP-24]
  00413994   .  FF15 DC114000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaFreeO>;  MSVBVM60.__vbaFreeObj
  0041399A   .  8D55 BC       LEA EDX,DWORD PTR SS:[EBP-44]
  0041399D   .  8D45 CC       LEA EAX,DWORD PTR SS:[EBP-34]
  004139A0   .  52            PUSH EDX
  004139A1   .  50            PUSH EAX
  004139A2   .  6A 02         PUSH 2
  004139A4   .  FFD3          CALL EBX
  004139A6   .  83C4 0C       ADD ESP,0C
  004139A9   .  E8 52F5FFFF   CALL ExcelWor.00412F00                   ;  关键CALL，F7进
  004139AE   .  66:3D FFFF    CMP AX,0FFFF                             ;  比较
  004139B2   .  B9 04000280   MOV ECX,80020004
  004139B7   .  B8 0A000000   MOV EAX,0A
  004139BC   .  894D A4       MOV DWORD PTR SS:[EBP-5C],ECX
  004139BF   .  8945 9C       MOV DWORD PTR SS:[EBP-64],EAX
  004139C2   .  894D B4       MOV DWORD PTR SS:[EBP-4C],ECX
  004139C5   .  8945 AC       MOV DWORD PTR SS:[EBP-54],EAX
  004139C8   .  0F85 25010000 JNZ ExcelWor.00413AF3                    ;  关键跳，跳向失败
  004139CE   .  894D C4       MOV DWORD PTR SS:[EBP-3C],ECX            ;  以下无关代码省略......
  00412F00   $  55            PUSH EBP
  00412F01   .  8BEC          MOV EBP,ESP
  00412F03   .  83EC 08       SUB ESP,8
  00412F06   .  68 E6194000   PUSH <JMP.&MSVBVM60.__vbaExceptHandler>  ;  SE 处理程序安装
  00412F0B   .  64:A1 0000000>MOV EAX,DWORD PTR FS:[0]
  00412F11   .  50            PUSH EAX
  00412F12   .  64:8925 00000>MOV DWORD PTR FS:[0],ESP
  00412F19   .  83EC 48       SUB ESP,48
  00412F1C   .  53            PUSH EBX
  00412F1D   .  56            PUSH ESI
  00412F1E   .  57            PUSH EDI
  00412F1F   .  8965 F8       MOV DWORD PTR SS:[EBP-8],ESP
  00412F22   .  C745 FC E8114>MOV DWORD PTR SS:[EBP-4],ExcelWor.004011>
  00412F29   .  A1 20604200   MOV EAX,DWORD PTR DS:[426020]
  00412F2E   .  8D55 B0       LEA EDX,DWORD PTR SS:[EBP-50]
  00412F31   .  52            PUSH EDX
  00412F32   .  33F6          XOR ESI,ESI
  00412F34   .  8D55 DC       LEA EDX,DWORD PTR SS:[EBP-24]
  00412F37   .  8975 E0       MOV DWORD PTR SS:[EBP-20],ESI
  00412F3A   .  8975 DC       MOV DWORD PTR SS:[EBP-24],ESI
  00412F3D   .  8975 D4       MOV DWORD PTR SS:[EBP-2C],ESI
  00412F40   .  8975 C4       MOV DWORD PTR SS:[EBP-3C],ESI
  00412F43   .  8975 B4       MOV DWORD PTR SS:[EBP-4C],ESI
  00412F46   .  8975 B0       MOV DWORD PTR SS:[EBP-50],ESI
  00412F49   .  8B08          MOV ECX,DWORD PTR DS:[EAX]
  00412F4B   .  52            PUSH EDX
  00412F4C   .  68 4C524000   PUSH ExcelWor.0040524C                   ;  UNICODE "LicenseName"
  00412F51   .  50            PUSH EAX
  00412F52   .  FF51 1C       CALL DWORD PTR DS:[ECX+1C]
  00412F55   .  3BC6          CMP EAX,ESI
  00412F57   .  DBE2          FCLEX
  00412F59   .  7D 15         JGE SHORT ExcelWor.00412F70
  00412F5B   .  8B0D 20604200 MOV ECX,DWORD PTR DS:[426020]
  00412F61   .  6A 1C         PUSH 1C
  00412F63   .  68 7C524000   PUSH ExcelWor.0040527C
  00412F68   .  51            PUSH ECX
  00412F69   .  50            PUSH EAX
  00412F6A   .  FF15 44104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaHresu>;  MSVBVM60.__vbaHresultCheckObj
  00412F70   >  A1 20604200   MOV EAX,DWORD PTR DS:[426020]
  00412F75   .  8D4D B0       LEA ECX,DWORD PTR SS:[EBP-50]
  00412F78   .  51            PUSH ECX
  00412F79   .  8D4D D4       LEA ECX,DWORD PTR SS:[EBP-2C]
  00412F7C   .  8B10          MOV EDX,DWORD PTR DS:[EAX]
  00412F7E   .  51            PUSH ECX
  00412F7F   .  68 90524000   PUSH ExcelWor.00405290                   ;  UNICODE "LicenseCode"
  00412F84   .  50            PUSH EAX
  00412F85   .  FF52 1C       CALL DWORD PTR DS:[EDX+1C]
  00412F88   .  3BC6          CMP EAX,ESI
  00412F8A   .  DBE2          FCLEX
  00412F8C   .  7D 15         JGE SHORT ExcelWor.00412FA3
  00412F8E   .  8B15 20604200 MOV EDX,DWORD PTR DS:[426020]
  00412F94   .  6A 1C         PUSH 1C
  00412F96   .  68 7C524000   PUSH ExcelWor.0040527C
  00412F9B   .  52            PUSH EDX
  00412F9C   .  50            PUSH EAX
  00412F9D   .  FF15 44104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaHresu>;  MSVBVM60.__vbaHresultCheckObj
  00412FA3   >  8B45 D4       MOV EAX,DWORD PTR SS:[EBP-2C]            ;  假码
  00412FA6   .  8B3D 1C104000 MOV EDI,DWORD PTR DS:[<&MSVBVM60.__vbaLe>;  MSVBVM60.__vbaLenBstr
  00412FAC   .  50            PUSH EAX
  00412FAD   .  FFD7          CALL EDI                                 ;  假码位数; <&MSVBVM60.__vbaLenBstr>
  00412FAF   .  8B4D DC       MOV ECX,DWORD PTR SS:[EBP-24]            ;  用户名
  00412FB2   .  8BD8          MOV EBX,EAX
  00412FB4   .  F7DB          NEG EBX
  00412FB6   .  1BDB          SBB EBX,EBX
  00412FB8   .  51            PUSH ECX
  00412FB9   .  F7DB          NEG EBX
  00412FBB   .  FFD7          CALL EDI                                 ;  用户名位数
  00412FBD   .  F7D8          NEG EAX
  00412FBF   .  1BC0          SBB EAX,EAX
  00412FC1   .  F7D8          NEG EAX
  00412FC3   .  85D8          TEST EAX,EBX
  00412FC5   .  75 0A         JNZ SHORT ExcelWor.00412FD1
  00412FC7   .  8975 D8       MOV DWORD PTR SS:[EBP-28],ESI
  00412FCA   .  68 41304100   PUSH ExcelWor.00413041
  00412FCF   .  EB 56         JMP SHORT ExcelWor.00413027
  00412FD1   >  8B55 DC       MOV EDX,DWORD PTR SS:[EBP-24]
  00412FD4   .  52            PUSH EDX
  00412FD5   .  E8 86000000   CALL ExcelWor.00413060                   ;  算法CALL，F7进
  00412FDA   .  8D55 C4       LEA EDX,DWORD PTR SS:[EBP-3C]            ;  省略以下无关代码......

[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)

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qifeon
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2 楼
学习学习vb算法。
2008-9-23 18:03
0
xss
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3 楼
看见vb就头痛.
2008-9-24 18:44
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米粒
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4 楼
分析的太好了
连我这个菜鸟都看懂了
谢谢
2008-9-24 21:01
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冷血书生
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5 楼
我主要是来看源码的!!!!!!
2008-9-24 21:29
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hokers
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6 楼
正学着VB...
2008-9-24 22:27
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