160 - 21 Cabeca

环境：
Windows xp sp3

工具：
exeinfope
ollydbg

查壳：
拿到程序后查壳，发现程序无壳，为Delphi写的。

程序长成这个样

输入：
Name:GNUBD
Serial：1234567
Serial：7654321

尝试看看出现什么错误。

OD载入字符串搜索、跟随。

0042D3C4  /.  55            push ebp
0042D3C5  |.  8BEC          mov ebp,esp
0042D3C7  |.  33C9          xor ecx,ecx
0042D3C9  |.  51            push ecx
0042D3CA  |.  51            push ecx
0042D3CB  |.  51            push ecx
0042D3CC  |.  51            push ecx
0042D3CD  |.  53            push ebx
0042D3CE  |.  8BD8          mov ebx,eax
0042D3D0  |.  33C0          xor eax,eax
0042D3D2  |.  55            push ebp
0042D3D3  |.  68 ADD54200   push Cabeca.0042D5AD
0042D3D8  |.  64:FF30       push dword ptr fs:[eax]
0042D3DB  |.  64:8920       mov dword ptr fs:[eax],esp
0042D3DE  |.  833D 14F74200>cmp dword ptr ds:[0x42F714],0x0          ;  用于判断输入的name是否全为数字
0042D3E5  |.  74 45         je XCabeca.0042D42C
0042D3E7  |.  833D 18F74200>cmp dword ptr ds:[0x42F718],0x0
0042D3EE  |.  74 3C         je XCabeca.0042D42C
0042D3F0  |.  8D55 FC       lea edx,[local.1]
0042D3F3  |.  8B83 E0010000 mov eax,dword ptr ds:[ebx+0x1E0]
0042D3F9  |.  E8 E2C9FEFF   call Cabeca.00419DE0                     ;  读入输入内容
0042D3FE  |.  837D FC 00    cmp [local.1],0x0
0042D402  |.  74 28         je XCabeca.0042D42C
0042D404  |.  8D55 F8       lea edx,[local.2]
0042D407  |.  8B83 E4010000 mov eax,dword ptr ds:[ebx+0x1E4]
0042D40D  |.  E8 CEC9FEFF   call Cabeca.00419DE0                     ;  读入输入内容
0042D412  |.  837D F8 00    cmp [local.2],0x0
0042D416  |.  74 14         je XCabeca.0042D42C
0042D418  |.  8D55 F4       lea edx,[local.3]
0042D41B  |.  8B83 EC010000 mov eax,dword ptr ds:[ebx+0x1EC]
0042D421  |.  E8 BAC9FEFF   call Cabeca.00419DE0                     ;  读入输入内容
0042D426  |.  837D F4 00    cmp [local.3],0x0                        ;  任意一个为空都会弹出错误
0042D42A  |.  75 44         jnz XCabeca.0042D470
0042D42C  |>  B8 C4D54200   mov eax,Cabeca.0042D5C4                  ;  ASCII "Fill all boxes first dumb!"
0042D431  |.  E8 56F6FFFF   call Cabeca.0042CA8C
0042D436  |.  33C0          xor eax,eax
0042D438  |.  A3 14F74200   mov dword ptr ds:[0x42F714],eax
0042D43D  |.  33C0          xor eax,eax
0042D43F  |.  A3 18F74200   mov dword ptr ds:[0x42F718],eax
0042D444  |.  33D2          xor edx,edx
0042D446  |.  8B83 E0010000 mov eax,dword ptr ds:[ebx+0x1E0]
0042D44C  |.  E8 BFC9FEFF   call Cabeca.00419E10
0042D451  |.  33D2          xor edx,edx
0042D453  |.  8B83 E4010000 mov eax,dword ptr ds:[ebx+0x1E4]
0042D459  |.  E8 B2C9FEFF   call Cabeca.00419E10
0042D45E  |.  33D2          xor edx,edx
0042D460  |.  8B83 EC010000 mov eax,dword ptr ds:[ebx+0x1EC]
0042D466  |.  E8 A5C9FEFF   call Cabeca.00419E10
0042D46B  |.  E9 1A010000   jmp Cabeca.0042D58A
0042D470  |>  833D 14F74200>cmp dword ptr ds:[0x42F714],0x0
0042D477  |.  74 6C         je XCabeca.0042D4E5
0042D479  |.  833D 18F74200>cmp dword ptr ds:[0x42F718],0x0
0042D480  |.  74 63         je XCabeca.0042D4E5
0042D482  |.  8D55 F0       lea edx,[local.4]
0042D485  |.  A1 14F74200   mov eax,dword ptr ds:[0x42F714]
0042D48A  |.  E8 C190FDFF   call Cabeca.00406550                     ;  将[0x42f714]的值转成10进制表示
0042D48F  |.  8B45 F0       mov eax,[local.4]
0042D492  |.  50            push eax
0042D493  |.  8D55 FC       lea edx,[local.1]
0042D496  |.  8B83 E4010000 mov eax,dword ptr ds:[ebx+0x1E4]
0042D49C  |.  E8 3FC9FEFF   call Cabeca.00419DE0
0042D4A1  |.  8B55 FC       mov edx,[local.1]
0042D4A4  |.  58            pop eax
0042D4A5  |.  E8 2664FDFF   call Cabeca.004038D0                     ;  比较
0042D4AA  |.  75 39         jnz XCabeca.0042D4E5
0042D4AC  |.  8D55 F0       lea edx,[local.4]
0042D4AF  |.  A1 18F74200   mov eax,dword ptr ds:[0x42F718]
0042D4B4  |.  E8 9790FDFF   call Cabeca.00406550                     ;  将[0x42f718]的值转成10进制表示
0042D4B9  |.  8B45 F0       mov eax,[local.4]
0042D4BC  |.  50            push eax
0042D4BD  |.  8D55 FC       lea edx,[local.1]
0042D4C0  |.  8B83 EC010000 mov eax,dword ptr ds:[ebx+0x1EC]
0042D4C6  |.  E8 15C9FEFF   call Cabeca.00419DE0
0042D4CB  |.  8B55 FC       mov edx,[local.1]
0042D4CE  |.  58            pop eax
0042D4CF  |.  E8 FC63FDFF   call Cabeca.004038D0                     ;  比较，两个比较就是两个serial的比较了
0042D4D4  |.  75 0F         jnz XCabeca.0042D4E5
0042D4D6  |.  B8 E8D54200   mov eax,Cabeca.0042D5E8                  ;  ASCII "Hmmm.... Cracked... Congratulations idiot! :-)"
0042D4DB  |.  E8 ACF5FFFF   call Cabeca.0042CA8C
0042D4E0  |.  E9 A5000000   jmp Cabeca.0042D58A
0042D4E5  |>  833D 14F74200>cmp dword ptr ds:[0x42F714],0x0
0042D4EC  |.  74 33         je XCabeca.0042D521
0042D4EE  |.  833D 18F74200>cmp dword ptr ds:[0x42F718],0x0
0042D4F5  |.  74 2A         je XCabeca.0042D521
0042D4F7  |.  8D55 F0       lea edx,[local.4]
0042D4FA  |.  A1 14F74200   mov eax,dword ptr ds:[0x42F714]
0042D4FF  |.  E8 4C90FDFF   call Cabeca.00406550
0042D504  |.  8B45 F0       mov eax,[local.4]
0042D507  |.  50            push eax
0042D508  |.  8D55 FC       lea edx,[local.1]
0042D50B  |.  8B83 E4010000 mov eax,dword ptr ds:[ebx+0x1E4]
0042D511  |.  E8 CAC8FEFF   call Cabeca.00419DE0
0042D516  |.  8B55 FC       mov edx,[local.1]
0042D519  |.  58            pop eax
0042D51A  |.  E8 B163FDFF   call Cabeca.004038D0
0042D51F  |.  75 2A         jnz XCabeca.0042D54B
0042D521  |>  8D55 F0       lea edx,[local.4]
0042D524  |.  A1 18F74200   mov eax,dword ptr ds:[0x42F718]
0042D529  |.  E8 2290FDFF   call Cabeca.00406550
0042D52E  |.  8B45 F0       mov eax,[local.4]
0042D531  |.  50            push eax
0042D532  |.  8D55 FC       lea edx,[local.1]
0042D535  |.  8B83 EC010000 mov eax,dword ptr ds:[ebx+0x1EC]
0042D53B  |.  E8 A0C8FEFF   call Cabeca.00419DE0
0042D540  |.  8B55 FC       mov edx,[local.1]
0042D543  |.  58            pop eax
0042D544  |.  E8 8763FDFF   call Cabeca.004038D0
0042D549  |.  74 3F         je XCabeca.0042D58A
0042D54B  |>  B8 20D64200   mov eax,Cabeca.0042D620                  ;  ASCII "Nice try... but is incorrect... Dumb.."
0042D550  |.  E8 37F5FFFF   call Cabeca.0042CA8C
0042D555  |.  33C0          xor eax,eax
0042D557  |.  A3 14F74200   mov dword ptr ds:[0x42F714],eax
0042D55C  |.  33C0          xor eax,eax
0042D55E  |.  A3 18F74200   mov dword ptr ds:[0x42F718],eax
0042D563  |.  33D2          xor edx,edx
0042D565  |.  8B83 E0010000 mov eax,dword ptr ds:[ebx+0x1E0]
0042D56B  |.  E8 A0C8FEFF   call Cabeca.00419E10
0042D570  |.  33D2          xor edx,edx
0042D572  |.  8B83 E4010000 mov eax,dword ptr ds:[ebx+0x1E4]
0042D578  |.  E8 93C8FEFF   call Cabeca.00419E10
0042D57D  |.  33D2          xor edx,edx
0042D57F  |.  8B83 EC010000 mov eax,dword ptr ds:[ebx+0x1EC]
0042D585  |.  E8 86C8FEFF   call Cabeca.00419E10
0042D58A  |>  33C0          xor eax,eax
0042D58C  |.  5A            pop edx
0042D58D  |.  59            pop ecx
0042D58E  |.  59            pop ecx
0042D58F  |.  64:8910       mov dword ptr fs:[eax],edx
0042D592  |.  68 B4D54200   push Cabeca.0042D5B4
0042D597  |>  8D45 F0       lea eax,[local.4]
0042D59A  |.  E8 A55FFDFF   call Cabeca.00403544
0042D59F  |.  8D45 F4       lea eax,[local.3]
0042D5A2  |.  BA 03000000   mov edx,0x3
0042D5A7  |.  E8 BC5FFDFF   call Cabeca.00403568
0042D5AC  \.  C3            retn

程序思路很简单，就是将[0x42F714]和[0x42F718]两个地址的值的10进制和输入的两个serial分别比较
具体[0x42F714]和[0x42F718]的值是怎么得到的呢？
可以通过下内存写入断点来找到。其实就是上面那段代码的上面那段。

0042CF98   > \8105 14F74200>add dword ptr ds:[0x42F714],0x427        ;  Case 61 of switch 0042CE34
0042CFA2   .  8305 18F74200>add dword ptr ds:[0x42F718],0x79
0042CFA9   .  C3            retn
0042CFAA   >  8105 14F74200>add dword ptr ds:[0x42F714],0x6BC        ;  Case 62 of switch 0042CE34
0042CFB4   .  8305 18F74200>add dword ptr ds:[0x42F718],0x6F
0042CFBB   .  C3            retn
0042CFBC   >  8105 14F74200>add dword ptr ds:[0x42F714],0x491        ;  Case 63 of switch 0042CE34
0042CFC6   .  8105 18F74200>add dword ptr ds:[0x42F718],0x2E2
0042CFD0   .  C3            retn
0042CFD1   >  8105 14F74200>add dword ptr ds:[0x42F714],0x474D       ;  Case 64 of switch 0042CE34
0042CFDB   .  8105 18F74200>add dword ptr ds:[0x42F718],0x2FA
0042CFE5   .  C3            retn
0042CFE6   >  8105 14F74200>add dword ptr ds:[0x42F714],0x400        ;  Case 65 of switch 0042CE34
0042CFF0   .  8305 18F74200>add dword ptr ds:[0x42F718],0xE
0042CFF7   .  C3            retn
0042CFF8   >  8105 14F74200>add dword ptr ds:[0x42F714],0x6D0        ;  Case 66 of switch 0042CE34
0042D002   .  8305 18F74200>add dword ptr ds:[0x42F718],0xD
0042D009   .  C3            retn
0042D00A   >  8105 14F74200>add dword ptr ds:[0x42F714],0x67D        ;  Case 67 of switch 0042CE34
0042D014   .  8305 18F74200>add dword ptr ds:[0x42F718],0xC
0042D01B   .  C3            retn
0042D01C   >  8105 14F74200>add dword ptr ds:[0x42F714],0x750        ;  Case 68 of switch 0042CE34
0042D026   .  8305 18F74200>add dword ptr ds:[0x42F718],0xB
0042D02D   .  C3            retn
0042D02E   >  8105 14F74200>add dword ptr ds:[0x42F714],0x43C        ;  Case 69 of switch 0042CE34
0042D038   .  8305 18F74200>add dword ptr ds:[0x42F718],0x63
0042D03F   .  C3            retn
0042D040   >  8105 14F74200>add dword ptr ds:[0x42F714],0x764        ;  Case 6A of switch 0042CE34
0042D04A   .  8105 18F74200>add dword ptr ds:[0x42F718],0x378
0042D054   .  C3            retn
0042D055   >  8105 14F74200>add dword ptr ds:[0x42F714],0xC0         ;  Case 6B of switch 0042CE34
0042D05F   .  8305 18F74200>add dword ptr ds:[0x42F718],0x4D
0042D066   .  C3            retn
0042D067   >  8105 14F74200>add dword ptr ds:[0x42F714],0x277D       ;  Case 6C of switch 0042CE34
0042D071   .  8105 18F74200>add dword ptr ds:[0x42F718],0x22B
0042D07B   .  C3            retn
0042D07C   >  8105 14F74200>add dword ptr ds:[0x42F714],0x81E        ;  Case 6D of switch 0042CE34
0042D086   .  8305 18F74200>add dword ptr ds:[0x42F718],0x5A
0042D08D   .  C3            retn
0042D08E   >  8105 14F74200>add dword ptr ds:[0x42F714],0xE07        ;  Case 6E of switch 0042CE34
0042D098   .  8305 18F74200>add dword ptr ds:[0x42F718],0x62
0042D09F   .  C3            retn
0042D0A0   >  8105 14F74200>add dword ptr ds:[0x42F714],0x8E         ;  Case 6F of switch 0042CE34
0042D0AA   .  8105 18F74200>add dword ptr ds:[0x42F718],0x1D2C
0042D0B4   .  C3            retn
0042D0B5   >  8105 14F74200>add dword ptr ds:[0x42F714],0x9A670      ;  Case 70 of switch 0042CE34
0042D0BF   .  8105 18F74200>add dword ptr ds:[0x42F718],0x8C7F3
0042D0C9   .  C3            retn
0042D0CA   >  8105 14F74200>add dword ptr ds:[0x42F714],0xD57        ;  Case 71 of switch 0042CE34
0042D0D4   .  8105 18F74200>add dword ptr ds:[0x42F718],0x288
0042D0DE   .  C3            retn
0042D0DF   >  8105 14F74200>add dword ptr ds:[0x42F714],0x5FEB       ;  Case 72 of switch 0042CE34
0042D0E9   .  8105 18F74200>add dword ptr ds:[0x42F718],0x21A
0042D0F3   .  C3            retn
0042D0F4   >  8105 14F74200>add dword ptr ds:[0x42F714],0x8B0        ;  Case 73 of switch 0042CE34
0042D0FE   .  FF05 18F74200 inc dword ptr ds:[0x42F718]
0042D104   .  C3            retn
0042D105   >  8105 14F74200>add dword ptr ds:[0x42F714],0x4BB        ;  Case 74 of switch 0042CE34
0042D10F   .  8305 18F74200>add dword ptr ds:[0x42F718],0x40
0042D116   .  C3            retn
0042D117   >  8105 14F74200>add dword ptr ds:[0x42F714],0x8C2        ;  Case 75 of switch 0042CE34
0042D121   .  8305 18F74200>add dword ptr ds:[0x42F718],0x4B
0042D128   .  C3            retn
0042D129   >  8105 14F74200>add dword ptr ds:[0x42F714],0x1CA6       ;  Case 76 of switch 0042CE34
0042D133   .  8305 18F74200>add dword ptr ds:[0x42F718],0x4E
0042D13A   .  C3            retn
0042D13B   >  8105 14F74200>add dword ptr ds:[0x42F714],0x395        ;  Case 78 of switch 0042CE34
0042D145   .  8305 18F74200>add dword ptr ds:[0x42F718],0x26
0042D14C   .  C3            retn
0042D14D   >  8105 14F74200>add dword ptr ds:[0x42F714],0x251E       ;  Case 77 of switch 0042CE34
0042D157   .  8305 18F74200>add dword ptr ds:[0x42F718],0x5
0042D15E   .  C3            retn
0042D15F   >  8105 14F74200>add dword ptr ds:[0x42F714],0x2D13       ;  Case 79 of switch 0042CE34
0042D169   .  8305 18F74200>add dword ptr ds:[0x42F718],0x8
0042D170   .  C3            retn
0042D171   >  8105 14F74200>add dword ptr ds:[0x42F714],0x1900       ;  Case 7A of switch 0042CE34
0042D17B   .  8105 18F74200>add dword ptr ds:[0x42F718],0x1C8
0042D185   .  C3            retn
0042D186   >  8105 14F74200>add dword ptr ds:[0x42F714],0x428        ;  Case 41 of switch 0042CE34
0042D190   .  8105 18F74200>add dword ptr ds:[0x42F718],0x1610
0042D19A   .  C3            retn
0042D19B   >  8105 14F74200>add dword ptr ds:[0x42F714],0xB1630      ;  Case 42 of switch 0042CE34
0042D1A5   .  8305 18F74200>add dword ptr ds:[0x42F718],0x2
0042D1AC   .  C3            retn
0042D1AD   >  8105 14F74200>add dword ptr ds:[0x42F714],0xD86        ;  Case 43 of switch 0042CE34
0042D1B7   .  8105 18F74200>add dword ptr ds:[0x42F718],0x270F
0042D1C1   .  C3            retn
0042D1C2   >  8105 14F74200>add dword ptr ds:[0x42F714],0x11A4       ;  Case 44 of switch 0042CE34
0042D1CC   .  8105 18F74200>add dword ptr ds:[0x42F718],0x46FF33C
0042D1D6   .  C3            retn
0042D1D7   >  8105 14F74200>add dword ptr ds:[0x42F714],0x11F0A      ;  Case 45 of switch 0042CE34
0042D1E1   .  8105 18F74200>add dword ptr ds:[0x42F718],0x8B3C
0042D1EB   .  C3            retn
0042D1EC   >  8105 14F74200>add dword ptr ds:[0x42F714],0x3CC2       ;  Case 46 of switch 0042CE34
0042D1F6   .  8105 18F74200>add dword ptr ds:[0x42F718],0x8618
0042D200   .  C3            retn
0042D201   >  8105 14F74200>add dword ptr ds:[0x42F714],0x3E1A8      ;  Case 47 of switch 0042CE34
0042D20B   .  8105 18F74200>add dword ptr ds:[0x42F718],0x6C81C
0042D215   .  C3            retn
0042D216   >  8105 14F74200>add dword ptr ds:[0x42F714],0x91E4       ;  Case 48 of switch 0042CE34
0042D220   .  8105 18F74200>add dword ptr ds:[0x42F718],0x27E945
0042D22A   .  C3            retn
0042D22B   >  8105 14F74200>add dword ptr ds:[0x42F714],0x6B42       ;  Case 49 of switch 0042CE34
0042D235   .  8105 18F74200>add dword ptr ds:[0x42F718],0x2FC7C3
0042D23F   .  C3            retn
0042D240   >  8105 14F74200>add dword ptr ds:[0x42F714],0x516A4      ;  Case 4A of switch 0042CE34
0042D24A   .  8105 18F74200>add dword ptr ds:[0x42F718],0xB8F47C
0042D254   .  C3            retn
0042D255   >  8105 14F74200>add dword ptr ds:[0x42F714],0x4345A      ;  Case 4B of switch 0042CE34
0042D25F   .  8105 18F74200>add dword ptr ds:[0x42F718],0x115C7
0042D269   .  C3            retn
0042D26A   >  8105 14F74200>add dword ptr ds:[0x42F714],0x1BFDD9     ;  Case 4C of switch 0042CE34
0042D274   .  8105 18F74200>add dword ptr ds:[0x42F718],0x12B54
0042D27E   .  C3            retn
0042D27F   >  8105 14F74200>add dword ptr ds:[0x42F714],0x286D       ;  Case 4D of switch 0042CE34
0042D289   .  8105 18F74200>add dword ptr ds:[0x42F718],0xB348C
0042D293   .  C3            retn
0042D294   >  8105 14F74200>add dword ptr ds:[0x42F714],0x401        ;  Case 4E of switch 0042CE34
0042D29E   .  8105 18F74200>add dword ptr ds:[0x42F718],0x357CE174
0042D2A8   .  C3            retn
0042D2A9   >  8105 14F74200>add dword ptr ds:[0x42F714],0x674        ;  Case 4F of switch 0042CE34
0042D2B3   .  8105 18F74200>add dword ptr ds:[0x42F718],0x317CD7     ;  ASCII "?5E??6E??7E??8E??9E??:E??;E??<E??=E??>E???E??@E??AE??BE??CE??DE??EE??FE??GE??HE??IE??JE??KE??LE??ME??NE??OE??PE??QE??RE??SE??TE??UE??VE??WE??XE??YE??ZE??[E??\E??]E??^E??_E??`E??aE??bE??cE??dE??eE??fE??gE??hE??iE??jE??kE??lE??mE??nE??oE??"...
0042D2BD   .  C3            retn
0042D2BE   >  8105 14F74200>add dword ptr ds:[0x42F714],0x9C         ;  Case 50 of switch 0042CE34
0042D2C8   .  8105 18F74200>add dword ptr ds:[0x42F718],0x7DD834
0042D2D2   .  C3            retn
0042D2D3   >  8105 14F74200>add dword ptr ds:[0x42F714],0x156        ;  Case 51 of switch 0042CE34
0042D2DD   .  8105 18F74200>add dword ptr ds:[0x42F718],0x39CD0
0042D2E7   .  C3            retn
0042D2E8   >  8105 14F74200>add dword ptr ds:[0x42F714],0x8627       ;  Case 52 of switch 0042CE34
0042D2F2   .  8105 18F74200>add dword ptr ds:[0x42F718],0xBF44A
0042D2FC   .  C3            retn
0042D2FD   >  8105 14F74200>add dword ptr ds:[0x42F714],0x748190     ;  Case 53 of switch 0042CE34
0042D307   .  8105 18F74200>add dword ptr ds:[0x42F718],0x854686
0042D311   .  C3            retn
0042D312   >  8105 14F74200>add dword ptr ds:[0x42F714],0xA568       ;  Case 54 of switch 0042CE34
0042D31C   .  8105 18F74200>add dword ptr ds:[0x42F718],0x13220
0042D326   .  C3            retn
0042D327   >  8105 14F74200>add dword ptr ds:[0x42F714],0x15592      ;  Case 55 of switch 0042CE34
0042D331   .  8105 18F74200>add dword ptr ds:[0x42F718],0x302E
0042D33B   .  C3            retn
0042D33C   >  8105 14F74200>add dword ptr ds:[0x42F714],0x1DD9       ;  Case 56 of switch 0042CE34
0042D346   .  8105 18F74200>add dword ptr ds:[0x42F718],0x1C43
0042D350   .  C3            retn
0042D351   >  8105 14F74200>add dword ptr ds:[0x42F714],0x266A       ;  Case 58 of switch 0042CE34
0042D35B   .  8105 18F74200>add dword ptr ds:[0x42F718],0x2BA96C08
0042D365   .  C3            retn
0042D366   >  8105 14F74200>add dword ptr ds:[0x42F714],0x3CC0       ;  Case 57 of switch 0042CE34
0042D370   .  8105 18F74200>add dword ptr ds:[0x42F718],0x4EFC8
0042D37A   .  C3            retn
0042D37B   >  8105 14F74200>add dword ptr ds:[0x42F714],0x8311       ;  Case 59 of switch 0042CE34
0042D385   .  8105 18F74200>add dword ptr ds:[0x42F718],0x1C46
0042D38F   .  C3            retn
0042D390   >  8105 14F74200>add dword ptr ds:[0x42F714],0xCE1B       ;  Case 5A of switch 0042CE34
0042D39A   .  8105 18F74200>add dword ptr ds:[0x42F718],0xB1664
0042D3A4   .  C3            retn
0042D3A5   >  33D2          xor edx,edx                              ;  Case 8 of switch 0042CE34
0042D3A7   .  8B80 E0010000 mov eax,dword ptr ds:[eax+0x1E0]
0042D3AD   .  E8 5ECAFEFF   call Cabeca.00419E10
0042D3B2   .  33C0          xor eax,eax
0042D3B4   .  A3 14F74200   mov dword ptr ds:[0x42F714],eax
0042D3B9   .  33C0          xor eax,eax
0042D3BB   .  A3 18F74200   mov dword ptr ds:[0x42F718],eax
0042D3C0   >  C3            retn                                     ;  Default case of switch 0042CE34

这里可以根据case后的值来查ascii表所对应的字符，这样就知道了两个内存地址的值的来源了。可以写出注册机了。

本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若转载，请注明出处：http://www.mzph.cn/news/376434.shtml

如若内容造成侵权/违法违规/事实不符，请联系多彩编程网进行投诉反馈email:809451989@qq.com，一经查实，立即删除！

相关文章

JS函数重载解决方案

JS函数重载解决方案

JS的函数定义可以指定形式参数名称&#xff0c;多多少少我们会以为js至少可以支持参数个数不同的方法重载&#xff0c;然而遗憾的是这仅仅是一个假象&#xff0c;js所有的参数都是以arguments传递过去的&#xff0c;这个参数类似于数组&#xff0c;在函数调用的时候&#xff0c…
阅读更多...
JS中replace替换全部元素的解决办法

JS中replace替换全部元素的解决办法

JavaScript中replace() 方法如果直接用str.replace("-","!") 只会替换第一个匹配的字符. 然而我们大多数需要替换的是全部匹配的元素&#xff0c;而JavaScript又没有java中的replaceAll的方法&#xff0c;这个时候就需要特殊处理了。 String repace(new R…
阅读更多...
160 - 22 CarLitoZ.1

160 - 22 CarLitoZ.1

环境 Windows xp sp3 工具 exeinfope Ollydbg 查壳 无壳的VB程序 测试 输入“1234567” 显示这个&#xff1a; 直接OD载入字符串搜索。 00402D20 > \55 push ebp 00402D21 . 8BEC mov ebp,esp 00402D23 . 83EC 0C sub e…
阅读更多...
实战MEF（4）：搜索范围

实战MEF（4）：搜索范围

在前面的文章中&#xff0c;几乎每个示例我们都会接触到扩展类的搜索位置&#xff0c;我们也不妨想一下&#xff0c;既然是自动扩展&#xff0c;它肯定会有一个或者多人可供查找的位置&#xff0c;不然MEF框架怎么知道哪里有扩展组件呢&#xff1f; 就像我们用导航系统去查找某…
阅读更多...
Android应用程序请求SurfaceFlinger服务创建Surface的过程分析

Android应用程序请求SurfaceFlinger服务创建Surface的过程分析

文章转载至CSDN社区罗升阳的安卓之旅&#xff0c;原文地址&#xff1a;http://blog.csdn.net/luoshengyang/article/details/7884628 前面我们已经学习过Android应用程序与SurfaceFlinger服务的连接过程了。连接上SurfaceFlinger服务之后&#xff0c;Android应用程序就可以请求…
阅读更多...
Oracle面试题(基础篇)

Oracle面试题(基础篇)

1. Oracle跟SQL Server 2005的区别&#xff1f; 宏观上&#xff1a; 1). 最大的区别在于平台&#xff0c;oracle可以运行在不同的平台上&#xff0c;sql server只能运行在windows平台上&#xff0c;由于windows平台的稳定性和安全性影响了sql server的稳定性和安全性 2). oracl…
阅读更多...
160 - 23 Chafe.1

160 - 23 Chafe.1

环境 Windows xp sp3 工具 exeinfope ollydbg 查壳 用exeinfoe查壳 测试 可以从左下角状态栏看出serial是无效的 直接OD载入字符串搜索 00401274 |. /75 17 jnz XChafe_1.0040128D 00401276 |. |6A 00 push 0x0 ; /Ti…
阅读更多...
fis 详细介绍(mac版) - 12-26没有弄完 - 暂停

fis 详细介绍(mac版) - 12-26没有弄完 - 暂停

fis可以让fe进入角色&#xff0c;而不必担心底层的架构&#xff0c;性能得到优化。仅需三条命令&#xff0c;即可解决所有前端开发要求fis是nodejs写的&#xff0c;发布在vpn(&#xff1f;)上下载 www.nodejs.org&#xff0c;并安装nodejs&#xff0c;其中包括npm安装fis: sudo…
阅读更多...
用文件模拟CMOS保存数据

用文件模拟CMOS保存数据

Hi3520D 芯片的内置CMOS最多只有5个字节可以用&#xff0c;但是我需要保存的数据有很多。 其中一个解决办法是&#xff1a;可以把其他需要保存的数据放到一个配置文件中。每次写的时候写到配置文件&#xff0c;用的时候再从配置文件读出数据即可。 用文件写&#xff1a; 1 stat…
阅读更多...
160 - 24 Chafe.2

160 - 24 Chafe.2

环境&#xff1a; Windows xp sp3 工具 exeinfope OllyDBG 查壳 用exeinfope查壳&#xff0c;发现是没有壳的。 测试 可以看出是从红色框框里面的内容判断serial是否有效 OD载入&#xff0c;字符串搜索可以得到&#xff1a; 004011EC . 55 pus…
阅读更多...
十个利用矩阵乘法解决的经典题目

十个利用矩阵乘法解决的经典题目

转载自 Matrix67: The Aha Moments 好像目前还没有这方面题目的总结。这几天连续看到四个问这类题目的人&#xff0c;今天在这里简单写一下。这里我们不介绍其它有关矩阵的知识&#xff0c;只介绍矩阵乘法和相关性质。 不要以为数学中的矩阵也是黑色屏幕上不断变化的绿色…
阅读更多...
[C++]搞清楚类中构造与析构的顺序

[C++]搞清楚类中构造与析构的顺序

定义一个类对象时&#xff0c;首先根据初始化列表初始化类的成员&#xff08;就算没有显式定义初始化列表&#xff0c;编译器也会默认地初始化一次&#xff09;&#xff0c;然后运行构造函数。因此&#xff0c;类成员的构造函数必定先于类的构造函数运行。 class A { public:A(…
阅读更多...
160 - 25 CodeZero.1

160 - 25 CodeZero.1

环境 Windows xp sp3 工具 exeinfope OllyDBG 查壳 无壳的VB程序 测试 运行程序后出现Nag窗口&#xff0c;所以这次的目标是除Nag窗口和找到serial 程序运行后弹出Nag窗口&#xff0c;并且等待5秒后按钮的标题改成“Continue..”&#xff0c;点击后才会弹出输入seria…
阅读更多...
WP8开发学习笔记动态修改启动时导航的第一个页面（如登录前启动页为LoginPage，登录后变为MainPage）...

WP8开发学习笔记动态修改启动时导航的第一个页面（如登录前启动页为LoginPage，登录后变为MainPage）...

很多时候我们需要在启动程序的时候根据状态改变初始导航页面&#xff0c;比如程序在启动的时候判断用户是否登录&#xff0c; 如果未登录则跳转到LoginPage.xaml否则跳转到MainPage界面。 这时候就要分析程序的启动和导航的过程。 程序的启动是App.xamlcs负责的。 App类的构造器…
阅读更多...
6.数组和Hash表

6.数组和Hash表

当显示多条结果时&#xff0c;存储在变量中非常智能&#xff0c;变量类型会自动转换为一个数组。 在下面的例子中&#xff0c;使用GetType()可以看到$a变量已经不是我们常见的string或int类型&#xff0c;而是Object类型&#xff0c;使用-is操作符来判断是否是个数组&#xff0…
阅读更多...
160 - 26 Colormaster

160 - 26 Colormaster

环境 Windows xp sp3 查壳 无壳的VB程序 测试&#xff1a; 输入 Name:123456 Serial:12345 字符串搜索&#xff0c;找到判断位置。 判断Name的长度要大于等于5&#xff1a; 00402CBC . 33C9 xor ecx,ecx 00402CBE . 83F8 04 cmp eax,0x4 00…
阅读更多...
Android 菜单(OptionMenu)大全 建立你自己的菜单

Android 菜单(OptionMenu)大全 建立你自己的菜单

菜单是用户界面中最常见的元素之一&#xff0c;使用非常频繁&#xff0c;在Android中&#xff0c;菜单被分为如下三种&#xff0c;选项菜单&#xff08;OptionsMenu&#xff09;、上下文菜单&#xff08;ContextMenu&#xff09;和子菜单&#xff08;SubMenu&#xff09;&#…
阅读更多...
160 - 27 Cosh.1

160 - 27 Cosh.1

环境 Windows XP sp3 工具 exeinfope ollydbg 查壳 无壳的MFC程序 测试 弹出这个&#xff1a; 是一个CD-CHECK保护的程序。 字符串搜索&#xff0c;一下子就能来到这里&#xff1a; 0040121A . 68 9C304000 push Cosh_1.0040309C …
阅读更多...
什么时候加上android.intent.category.DEFAULT

什么时候加上android.intent.category.DEFAULT

1、要弄清楚这个问题&#xff0c;首先需要弄明白什么是implicit(隐藏) intent什么是explicit(明确) intent。 Explicit Intent明确的指定了要启动的Acitivity &#xff0c;比如以下Java代码&#xff1a; Intent intent new Intent(this, B.class) Implicit Intent没有明确的指…
阅读更多...
[BZOJ 2165] 大楼 【DP + 倍增 + 二进制】

[BZOJ 2165] 大楼 【DP + 倍增 + 二进制】

题目链接&#xff1a;BZOJ - 2165 题目分析&#xff1a; 这道题我读了题之后就想不出来怎么做&#xff0c;题解也找不到&#xff0c;于是就请教了黄学长&#xff0c;黄学长立刻秒掉了这道题&#xff0c;然后我再看他的题解才写出来。。Orz 使用 DP 倍增 &#xff0c;用状态 f[…
阅读更多...
最新文章

Copyright @ 2022~2023