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捕鱼达人资源解密

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时间:2011-7-8
内容简介:最近闲的没事,找来的捕鱼达人来剖析了下资源加密算法,仅为喜好研究,并无他意。 本文由网上现金棋牌游戏平台www.crjq8.com编辑整理,介绍各种网上真钱棋牌游戏技巧,澳门赌场赌博技巧,提供各种网上博彩游戏,网上真钱游戏,免费试玩。希望捕鱼达人资源解密这篇文章能给你提供帮助。

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最近闲的没事,找来的捕鱼达人来剖析了下资源加密算法,仅为喜好研究,并无他意。


              首先,PEID 载入发现是 tElock 0.98b1 -> tE!  为了俭省时间,直接脱壳机脱。。。


               脱壳后发现,软件是用        Microsoft Visual C++ 7.0 [Debug]   debug 表示是 debug 形式编译的程序


               然后我们OD载入程序,开端剖析资源加密算法。
               载入后停留在
               0043DEE6 >  55                push ebp
0043DEE7    8BEC              mov ebp,esp
0043DEE9    6A FF             push -1
0043DEEB    68 403C4400       push fish1.00443C40
0043DEF0    68 D6E04300       push <jmp.&MSVCRT._except_handler3>
0043DEF5    64:A1 00000000    mov eax,dword ptr fs:[0]
0043DEFB    50                push eax
0043DEFC    64:8925 00000000  mov dword ptr fs:[0],esp
0043DF03    83EC 68           sub esp,68
0043DF06    53                push ebx
0043DF07    56                push esi
0043DF08    57                push edi
0043DF09    8965 E8           mov dword ptr ss:[ebp-18],esp
0043DF0C    33DB              xor ebx,ebx
0043DF0E    895D FC           mov dword ptr ss:[ebp-4],ebx
0043DF11    6A 02             push 2
0043DF13    FF15 CC004400     call dword ptr ds:[<&MSVCRT.__set_app_type>]     ; msvcrt.__set_app_type
0043DF19    59                pop ecx
0043DF1A    830D 88644400 FF  or dword ptr ds:[446488],FFFFFFFF
0043DF21    830D 8C644400 FF  or dword ptr ds:[44648C],FFFFFFFF
0043DF28    FF15 C8004400     call dword ptr ds:[<&MSVCRT.__p__fmode>]         ; msvcrt.__p__fmode
0043DF2E    8B0D 5C644400     mov ecx,dword ptr ds:[44645C]
0043DF34    8908              mov dword ptr ds:[eax],ecx
0043DF36    FF15 C4004400     call dword ptr ds:[<&MSVCRT.__p__commode>]       ; msvcrt.__p__commode


由于读取资源文件,肯定要读取文件,我们从读取文件的函数下断点。

           00401770    55                push ebp
00401771    8BEC              mov ebp,esp
00401773    83EC 48           sub esp,48
00401776    53                push ebx
00401777    56                push esi
00401778    57                push edi
00401779    833D F0174500 0A  cmp dword ptr ds:[4517F0],0A
00401780    75 14             jnz short fish--.00401796
00401782    68 E4224400       push fish--.004422E4                             ; reach max number of open file \\n\\n
00401787    E8 F4CB0200       call fish--.0042E380
0040178C    83C4 04           add esp,4
0040178F    33C0              xor eax,eax
00401791    E9 AF000000       jmp fish--.00401845
00401796    C745 FC 00000000  mov dword ptr ss:[ebp-4],0
0040179D    EB 09             jmp short fish--.004017A8
0040179F    8B45 FC           mov eax,dword ptr ss:[ebp-4]
004017A2    83C0 01           add eax,1
004017A5    8945 FC           mov dword ptr ss:[ebp-4],eax
004017A8    837D FC 0A        cmp dword ptr ss:[ebp-4],0A
004017AC    7D 11             jge short fish--.004017BF
004017AE    8B45 FC           mov eax,dword ptr ss:[ebp-4]
004017B1    833C85 9C174500 0>cmp dword ptr ds:[eax*4+45179C],0
004017B9    75 02             jnz short fish--.004017BD
004017BB    EB 02             jmp short fish--.004017BF
004017BD  ^ EB E0             jmp short fish--.0040179F
004017BF    837D FC 0A        cmp dword ptr ss:[ebp-4],0A
004017C3    75 11             jnz short fish--.004017D6
004017C5    68 CC224400       push fish--.004422CC                             ; can\'t find idle file \\n\\n
004017CA    E8 B1CB0200       call fish--.0042E380
004017CF    83C4 04           add esp,4
004017D2    33C0              xor eax,eax
004017D4    EB 6F             jmp short fish--.00401845
004017D6    8A45 0C           mov al,byte ptr ss:[ebp+C]
004017D9    8845 F8           mov byte ptr ss:[ebp-8],al
004017DC    C645 F9 62        mov byte ptr ss:[ebp-7],62
004017E0    C645 FA 00        mov byte ptr ss:[ebp-6],0
004017E4    68 60B74400       push fish--.0044B760                             ; dy;
004017E9    E8 02210300       call fish--.004338F0
004017EE    83C4 04           add esp,4
004017F1    50                push eax
004017F2    68 60B74400       push fish--.0044B760                             ; dy;
004017F7    8B45 08           mov eax,dword ptr ss:[ebp+8]
004017FA    50                push eax
004017FB    68 C0224400       push fish--.004422C0                             ; fish.xli   //发现读取 fish.xli
00401800    E8 0B280000       call fish--.00404010
00401805    83C4 10           add esp,10
00401808    A3 EC174500       mov dword ptr ds:[4517EC],eax
0040180D    C705 F4174500 000>mov dword ptr ds:[4517F4],0
00401817    833D EC174500 00  cmp dword ptr ds:[4517EC],0
0040181E    74 23             je short fish--.00401843
00401820    8B45 FC           mov eax,dword ptr ss:[ebp-4]
00401823    C70485 9C174500 0>mov dword ptr ds:[eax*4+45179C],1
0040182E    A1 F0174500       mov eax,dword ptr ds:[4517F0]
00401833    83C0 01           add eax,1
00401836    A3 F0174500       mov dword ptr ds:[4517F0],eax
0040183B    8B45 FC           mov eax,dword ptr ss:[ebp-4]
0040183E    83C0 01           add eax,1
00401841    EB 02             jmp short fish--.00401845
00401843    33C0              xor eax,eax
00401845    5F                pop edi
00401846    5E                pop esi
00401847    5B                pop ebx
00401848    8BE5              mov esp,ebp
0040184A    5D                pop ebp
0040184B    C3                retn

剖析读取背景
004238B1    68 B0684400       push fish--.004468B0                             ; res/fish/images/bg1.png
004238B6    A1 14D44400       mov eax,dword ptr ds:[44D414]
004238BB    50                push eax
004238BC    E8 2F14FEFF       call fish--.00404CF0
004238C1    83C4 18           add esp,18
004238C4    85C0              test eax,eax
004238C6    75 07             jnz short fish--.004238CF
004238C8    33C0              xor eax,eax
004238CA    E9 205C0000       jmp fish--.004294EF
004238CF    A1 14D44400       mov eax,dword ptr ds:[44D414]
004238D4    C700 00050000     mov dword ptr ds:[eax],500
004238DA    A1 14D44400       mov eax,dword ptr ds:[44D414]
004238DF    C740 04 D0020000  mov dword ptr ds:[eax+4],2D0
004238E6    A1 88774800       mov eax,dword ptr ds:[487788]
004238EB    83C0 01           add eax,1
004238EE    A3 88774800       mov dword ptr ds:[487788],eax
004238F3    833D 84774800 00  cmp dword ptr ds:[487784],0
004238FA    74 06             je short fish--.00423902
004238FC    FF15 84774800     call dword ptr ds:[487784]
00423902    6A 00             push 0
00423904    6A 00             push 0
00423906    6A 00             push 0
00423908    6A 00             push 0
0042390A    68 98684400       push fish--.00446898                             ; res/fish/images/bg2.png
0042390F    A1 4CD44400       mov eax,dword ptr ds:[44D44C]
00423914    50                push eax
00423915    E8 D613FEFF       call fish--.00404CF0
0042391A    83C4 18           add esp,18
0042391D    85C0              test eax,eax
0042391F    75 07             jnz short fish--.00423928
00423921    33C0              xor eax,eax
00423923    E9 C75B0000       jmp fish--.004294EF
00423928    A1 4CD44400       mov eax,dword ptr ds:[44D44C]
0042392D    C700 00050000     mov dword ptr ds:[eax],500
00423933    A1 4CD44400       mov eax,dword ptr ds:[44D44C]
00423938    C740 04 D0020000  mov dword ptr ds:[eax+4],2D0
0042393F    A1 88774800       mov eax,dword ptr ds:[487788]
00423944    83C0 01           add eax,1
00423947    A3 88774800       mov dword ptr ds:[487788],eax
0042394C    833D 84774800 00  cmp dword ptr ds:[487784],0
00423953    74 06             je short fish--.0042395B
00423955    FF15 84774800     call dword ptr ds:[487784]
0042395B    6A 00             push 0
0042395D    6A 00             push 0
0042395F    6A 00             push 0
00423961    6A 00             push 0
00423963    68 80684400       push fish--.00446880                             ; res/fish/images/bg3.png
00423968    A1 84D44400       mov eax,dword ptr ds:[44D484]
0042396D    50                push eax
0042396E    E8 7D13FEFF       call fish--.00404CF0
00423973    83C4 18           add esp,18
00423976    85C0              test eax,eax
00423978    75 07             jnz short fish--.00423981
0042397A    33C0              xor eax,eax
0042397C    E9 6E5B0000       jmp fish--.004294EF
00423981    A1 84D44400       mov eax,dword ptr ds:[44D484]
00423986    C700 00050000     mov dword ptr ds:[eax],500
0042398C    A1 84D44400       mov eax,dword ptr ds:[44D484]
00423991    C740 04 D0020000  mov dword ptr ds:[eax+4],2D0
00423998    A1 88774800       mov eax,dword ptr ds:[487788]
0042399D    83C0 01           add eax,1
004239A0    A3 88774800       mov dword ptr ds:[487788],eax
004239A5    833D 84774800 00  cmp dword ptr ds:[487784],0
004239AC    74 06             je short fish--.004239B4
004239AE    FF15 84774800     call dword ptr ds:[487784]
004239B4    6A 00             push 0
004239B6    6A 00             push 0
004239B8    6A 00             push 0
004239BA    6A 00             push 0
004239BC    68 68684400       push fish--.00446868                             ; res/fish/images/bg4.png
004239C1    A1 BCD44400       mov eax,dword ptr ds:[44D4BC]
004239C6    50                push eax
004239C7    E8 2413FEFF       call fish--.00404CF0
004239CC    83C4 18           add esp,18
004239CF    85C0              test eax,eax
004239D1    75 07             jnz short fish--.004239DA
004239D3    33C0              xor eax,eax
004239D5    E9 155B0000       jmp fish--.004294EF
004239DA    A1 BCD44400       mov eax,dword ptr ds:[44D4BC]
004239DF    C700 00050000     mov dword ptr ds:[eax],500
004239E5    A1 BCD44400       mov eax,dword ptr ds:[44D4BC]
004239EA    C740 04 D0020000  mov dword ptr ds:[eax+4],2D0
004239F1    A1 88774800       mov eax,dword ptr ds:[487788]
004239F6    83C0 01           add eax,1
004239F9    A3 88774800       mov dword ptr ds:[487788],eax
004239FE    833D 84774800 00  cmp dword ptr ds:[487784],0
00423A05    74 06             je short fish--.00423A0D
00423A07    FF15 84774800     call dword ptr ds:[487784]
00423A0D    6A 00             push 0
00423A0F    6A 00             push 0
00423A11    6A 00             push 0
00423A13    6A 00             push 0
00423A15    68 48684400       push fish--.00446848                             ; res/fish/images/emplacement.png
00423A1A    A1 F4D44400       mov eax,dword ptr ds:[44D4F4]
00423A1F    50                push eax
00423A20    E8 CB12FEFF       call fish--.00404CF0
00423A25    83C4 18           add esp,18
00423A28    85C0              test eax,eax
00423A2A    75 07             jnz short fish--.00423A33
00423A2C    33C0              xor eax,eax
00423A2E    E9 BC5A0000       jmp fish--.004294EF
00423A33    A1 F4D44400       mov eax,dword ptr ds:[44D4F4]
00423A38    C700 00010000     mov dword ptr ds:[eax],100
00423A3E    A1 F4D44400       mov eax,dword ptr ds:[44D4F4]
00423A43    C740 04 60000000  mov dword ptr ds:[eax+4],60
00423A4A    A1 88774800       mov eax,dword ptr ds:[487788]
00423A4F    83C0 01           add eax,1
00423A52    A3 88774800       mov dword ptr ds:[487788],eax
00423A57    833D 84774800 00  cmp dword ptr ds:[487784],0
00423A5E    74 06             je short fish--.00423A66
00423A60    FF15 84774800     call dword ptr ds:[487784]
00423A66    6A 00             push 0
00423A68    6A 00             push 0
00423A6A    6A 00             push 0
00423A6C    6A 00             push 0
00423A6E    68 2C684400       push fish--.0044682C                             ; res/fish/images/coin.png
00423A73    A1 2CD54400       mov eax,dword ptr ds:[44D52C]
00423A78    50                push eax
00423A79    E8 7212FEFF       call fish--.00404CF0
00423A7E    83C4 18           add esp,18
00423A81    85C0              test eax,eax
00423A83    75 07             jnz short fish--.00423A8C
00423A85    33C0              xor eax,eax
00423A87    E9 635A0000       jmp fish--.004294EF
00423A8C    A1 2CD54400       mov eax,dword ptr ds:[44D52C]
00423A91    C700 E2030000     mov dword ptr ds:[eax],3E2
00423A97    A1 2CD54400       mov eax,dword ptr ds:[44D52C]
00423A9C    C740 04 E0030000  mov dword ptr ds:[eax+4],3E0
00423AA3    A1 2CD54400       mov eax,dword ptr ds:[44D52C]
00423AA8    C740 0C 11000000  mov dword ptr ds:[eax+C],11
00423AAF    A1 88774800       mov eax,dword ptr ds:[487788]
00423AB4    83C0 01           add eax,1
00423AB7    A3 88774800       mov dword ptr ds:[487788],eax
00423ABC    833D 84774800 00  cmp dword ptr ds:[487784],0
00423AC3    74 06             je short fish--.00423ACB
00423AC5    FF15 84774800     call dword ptr ds:[487784]
00423ACB    6A 00             push 0
00423ACD    6A 00             push 0
00423ACF    6A 00             push 0
00423AD1    6A 00             push 0
00423AD3    68 F4264400       push fish--.004426F4                             ; res/fish/images/bubble.png
00423AD8    A1 64D54400       mov eax,dword ptr ds:[44D564]
00423ADD    50                push eax
00423ADE    E8 0D12FEFF       call fish--.00404CF0
00423AE3    83C4 18           add esp,18
00423AE6    85C0              test eax,eax
00423AE8    75 07             jnz short fish--.00423AF1
00423AEA    33C0              xor eax,eax
00423AEC    E9 FE590000       jmp fish--.004294EF
00423AF1    A1 64D54400       mov eax,dword ptr ds:[44D564]
00423AF6    C700 00010000     mov dword ptr ds:[eax],100
00423AFC    A1 64D54400       mov eax,dword ptr ds:[44D564]
00423B01    C740 04 00010000  mov dword ptr ds:[eax+4],100
00423B08    A1 64D54400       mov eax,dword ptr ds:[44D564]
00423B0D    C740 0C 11000000  mov dword ptr ds:[eax+C],11
00423B14    A1 88774800       mov eax,dword ptr ds:[487788]
00423B19    83C0 01           add eax,1
00423B1C    A3 88774800       mov dword ptr ds:[487788],eax
00423B21    833D 84774800 00  cmp dword ptr ds:[487784],0
00423B28    74 06             je short fish--.00423B30
00423B2A    FF15 84774800     call dword ptr ds:[487784]
00423B30    6A 00             push 0

好了,就说到这里,大家有兴味能够本人剖析下,这个还是比拟好剖析的。


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