ollydbg破解教学之万能断点篇有的只是OD不能下万能断点的断⾔,⼀时⼼恢之极,可是我原来⽤TRW和SICE⽤的挺好,谁知系统⼜跟我闹⽭盾,⼀⽤TRW和SICE就死机,没办法我现在只能⽤OD,我写的⼀些破解⽂章都是⽤OD破的,反复试验,我终于发现OD也能下万能断点,在我以前写的⼀些⽂章中好象有⼀篇简单提到过,但没有说的很详细,这次静下⼼,想写⼀点东西,送给我⼼爱的组织DFCG吧,我的破解是从DFCG组织起步的,很感谢DFCG的⾼⼿们的帮助,在此说声谢谢!为了更明确,这次破解所使⽤的调试器OD是从看雪论坛临时下载的OD1.09的汉化版,没有使⽤我⾃⼰⼿头经过改造的OD,在此也感谢看雪论坛,这⾥真的有很多⾼⼿,在这个论坛我也学到了很多.这次破解的对象是超级XX王,为保护国产软件我隐去了软件相关信息,我不想给⾃⼰带来⿇烦,现在⼯作很忙,能少⼀点⿇烦就尽量少⼀点吧.破解作者yzez[DFCG]破解⼯具ollydbg汉化版,下载https:///softs/58565.html破解⽬的本不为破解⽽破解,只因为技术⽽破解破解环境WINDOWS XP,这个我已经在98和XP下各做了两次,贴图和我这篇⽂章是在XP系统下完成的.破解过程1.检查了⼀下,该程序⽆壳,C++编译,⽤W32DSM反汇编⼀堆乱码,我倒!那就动态调试吧!⽤ollydbg1.09载⼊程序,这次我将教你们如何⽤OD下万能断点,过程我尽可能详细⼀点,下⾯请看.载⼊程序选OD菜单栏上的插件-----命令⾏(快捷键是ALT+F1),在弹出的窗⼝中输⼊万能断点命令:bpx hmemcpy,按ENTER键,结果⼜出现⼀个对话框:Intermodular calls00401164 CALL DWORD PTR DS:[<&USER32.GetWindowRect>] USER32.GetWindowRect0040118F CALL DWORD PTR DS:[<&USER32.GetClientRect>] USER32.GetClientRect00401279 CALL DWORD PTR DS:[<&USER32.GetClientRect>] USER32.GetClientRect004013E1 CALL DWORD PTR DS:[<&USER32.GetClientRect>] USER32.GetClientRect0040190A CALL DWORD PTR DS:[<&KERNEL32.GetThreadLocale>] kernel32.GetThreadLocale0040191C CALL DWORD PTR DS:[<&KERNEL32.GetLocaleInfoA>] kernel32.GetLocaleInfoA还有很多,我就省略了,在这个框⾥右键单击,出现⼀个对话框,选中在每个命令中设置断点(热键是S),单击,你看每⼀⾏都变成了红⾊吧,这表⽰全部设下断点了,后⾯的过程很烦燥,你要⼀边按F9,边按F2把⼀些⽆⽤的断点去掉,有⼀点耐⼼吧,当然也可以不这样做,但遇到断点跳不过的时候,你就得按F2把这个断点去掉.感觉在这⼀点上OD⽐不上TRW和SICE,到出现注册信息框后,你要输⼊注册信息,然后按确定,程序被断下来,我的序列号是:GK342QZ0C6RE03L,我输⼊试验码:123456789098765.程序中断在下⾯:00471F71 CALL DWORD PTR DS:[<&USER32.GetWindowTex>****按确定后回到OD程序中断在此,按F8⾛,在此还没有到关键处!*****************************************************注意这⾥会循环两次,分别处理序列号和试验码,按F8⾛00471F77 LEA ECX,DWORD PTR DS:[EAX+1]00471F7A PUSH ECX00471F7B MOV ECX,DWORD PTR SS:[EBP+10]00471F7E PUSH EAX00471F7F CALL SuperPIM.0043E15D00471F84 PUSH EAX00471F85 PUSH ESI00471F86 CALL DWORD PTR DS:[<&USER32.GetWindowTex>00471F8C MOV ECX,DWORD PTR SS:[EBP+10]00471F8F PUSH -100471F91 CALL SuperPIM.00401D6A00471F96 JMP SHORT SuperPIM.00471FA300471F98 MOV EAX,DWORD PTR SS:[EBP+10]00471F9B PUSH DWORD PTR DS:[EAX]00471F9D PUSH ESI00471F9E CALL SuperPIM.00470B6100471FA4 POP ESI00471FA5 POP EBP00471FA6 RETN 0C*************************************程序第⼆次循环后最后会返回到0040FE99下⾯看代码:----------------------------------------------------------------------------------------------------------0040FE99 LEA EAX,DWORD PTR SS:[EBP-14]****第⼆次循环后会返回到这⾥,注意这就是我们要找的关键地⽅,按F8往下!0040FE9C PUSH EAX0040FE9D CALL SuperPIM.00433D92***********这就是关键CALL,按F7追进,⼀定要进,因为算法就在这⾥⾯!0040FEA2 POP ECX0040FEA3 AND DWORD PTR SS:[EBP-4],00040FEA7 LEA ESI,DWORD PTR DS:[EDI+74]0040FEAA MOV EAX,DWORD PTR DS:[ESI]******试验码⼊EAX0040FEAC CMP DWORD PTR DS:[EAX-C],0******⽐较试验码输⼊了吗?0040FEB0 JE SHORT SuperPIM.0040FF2F******没有输⼊就跳⾛,⼀跳就失败!0040FEB2 PUSH 280040FEB4 LEA EAX,DWORD PTR SS:[EBP-18]0040FEB7 PUSH ESI0040FEB8 PUSH EAX0040FEB9 CALL SuperPIM.0042CEC8**********此CALL对输⼊的注册码进⾏处理,得到⼀个40位的长字符串,有兴趣⾃⼰跟,******************************************我已是头晕的很,不想跟进!0040FEBE LEA ECX,DWORD PTR SS:[EBP-14]0040FEC1 PUSH ECX0040FEC2 PUSH EAX0040FEC3 CALL SuperPIM.0040F9B7**********此CALL对序列号处理,也是得到⼀个40位的长字符串0040FEC8 MOV ECX,DWORD PTR SS:[EBP-18]0040FECB ADD ESP,140040FECE ADD ECX,-100040FED1 MOV BYTE PTR SS:[EBP-D],AL0040FED4 CALL SuperPIM.00401B5D**********此CALL进⾏⽐较,注册码不对,值为00040FED9 CMP BYTE PTR SS:[EBP-D],0*******⽐较是0吗?0040FEDD JE SHORT SuperPIM.0040FF2F******相等就跳,跳就失败,所以⼀定不能跳!0040FEDF PUSH 0**************************不跳往下你就成功了!下⾯代码省略! ...............................................................省略若⼲代码!.........................============================================================================================================= ************************************关键CALL的代码!*******************************************************00433D92 MOV EAX, SuperPIM.0049844E****追进关键CALL后我们来到这⾥!00433D97 CALL SuperPIM.0045090000433D9C PUSH ECX00433D9D PUSH ECX00433D9E AND [LOCAL.5], 000433DA2 LEA EAX, [LOCAL.5]00433DA5 PUSH EAX00433DA6 CALL SuperPIM.00433CA9********此CALL根据电脑硬件信息得到你的序列号,有兴趣跟吧!我是没有兴趣!00433DAB AND [LOCAL.1], 000433DAF PUSH 1400433DB1 LEA EAX, [LOCAL.5]00433DB4 PUSH EAX00433DB5 LEA EAX, [LOCAL.4]00433DB8 PUSH EAX00433DB9 CALL SuperPIM.0042CEC8*******算法CALL(1),按F7跟进!00433DBE PUSH 2800433DC0 LEA EAX, [LOCAL.4]00433DC3 PUSH EAX00433DC4 PUSH [ARG.1]00433DC7 MOV BYTE PTR SS:[EBP-4], 100433DCB CALL SuperPIM.0042CEC800433DD0 MOV ECX, [LOCAL.4]00433DD3 ADD ESP, 1C00433DD6 ADD ECX, -10*****************************省略N⾏代码!********************************************************0043454B RETN=========================================================================================================== ***********************************算法CALL!*********************************************************0042CEC8 MOV EAX, SuperPIM.00497B52********追进算法CALL我们在这⾥!0042CECD CALL SuperPIM.004509000042CED2 SUB ESP, 140042CED5 PUSH EBX0042CED6 PUSH ESI0042CED7 XOR EBX, EBX0042CED9 PUSH EDI0042CEDA MOV [LOCAL.8], EBX0042CEDD CALL SuperPIM.004639B50042CEE2 MOV EDX, DWORD PTR DS:[EAX]0042CEE4 MOV ECX, EAX0042CEE6 CALL DWORD PTR DS:[EDX+C]0042CEE9 LEA EDI, DWORD PTR DS:[EAX+10]0042CEEC MOV [LOCAL.4], EDI0042CEEF MOV EAX, [ARG.2]0042CEF2 MOV EAX, DWORD PTR DS:[EAX]*******序列号:GK342QZ0C6RE03L移⼊EAX0042CEF4 MOV ESI, DWORD PTR DS:[EAX-C]*****序列号的位数15(⼗六进制值是F)送⼊ESI0042CEF7 CMP ESI, EBX**********************⽐较ESI和EBX,ESI的值是F即序列号位数,EBX的初始值是00042CEF9 MOV [LOCAL.1], EBX0042CEFC MOV [LOCAL.8], ESI0042CEFF JE SuperPIM.0042CFB2*************相等就跳,这⾥当然不相等,所以就不会跳!0042CF05 MOV EAX, [ARG.3]******************常数14(⼗进制值是20)送⼊EAX0042CF08 CMP EAX, ESI**********************⽐较EAX和ESI,即14和F⽐较!0042CF0A MOV [LOCAL.6], EAX0042CF0D JG SHORT SuperPIM.0042CF12*******⼤于就跳!0042CF0F MOV [LOCAL.6], ESI0042CF12 CMP [LOCAL.6], EBX****************跳到这⾥!⽐较14和00042CF15 JLE SuperPIM.0042CFB2*************⼩于就跳,这⾥当然不会⼩!所以不跳!0042CF1B MOV EAX, EBX**********************0移⼊EAX0042CF1D CDQ***********************************EDX清0,准备计算!0042CF1E IDIV ESI***************************除,EAX/ESI ,EAX的值是0,ESI的值存放序列号的位数F0042CF20 MOV EAX, [ARG.2]******************赋EAX地址值0042CF23 MOV EAX, DWORD PTR DS:[EAX]*******序列号:GK342QZ0C6RE03L移⼊EAX0042CF25 PUSH EBX***************************EBX⼊栈0042CF26 MOV AL, BYTE PTR DS:[EDX+EAX]*****序列号的第⼀位G(ASCII码值47)⼊AL0042CF29 MOV BYTE PTR SS:[EBP-1C], AL******保存值470042CF2C PUSH [LOCAL.7]0042CF2F CALL SuperPIM.0042CD8E*************算法CALL(2),按F7跟进!代码直接在下⾯给出============================================================================================================== ***************************算法CALL(2)*****************************************************0042CD8E PUSH EBP0042CD8F MOV EBP, ESP0042CD91 PUSH ECX*************************G的ASCII码值47⼊ECX0042CD92 MOVZX EAX, BYTE PTR SS:[EBP+8]****扩展成000000470042CD96 MOV ECX, [ARG.2]****************赋ECX的初始值为00042CD99 MOV [LOCAL.1], EAX0042CD9C MOV EAX, ECX********************ECX的值移⼊EAX0042CD9E IMUL EAX, ECX********************EAX=EAX*ECX=0*00042CDA1 LEA EAX, DWORD PTR DS:[EAX+EAX*2+7]**EAX+EAX*2+7的值7给EAX0042CDA5 IMUL EAX, ECX********************EAX=EAX*ECX=7*00042CDA8 ADD EAX, 0D*********************EAX=EAX+0D=D0042CDAB IMUL EAX, ECX********************EAX=EAX*ECX=D*0=00042CDAE PUSH ESI*************************序列号位数F⼊栈!0042CDAF LEA ESI, DWORD PTR DS:[ECX+5]0042CDB2 PUSH ESI0042CDB3 MOV [ARG.1], EAX0042CDB6 LEA EAX, [ARG.1]0042CDB9 PUSH 40042CDBB PUSH EAX0042CDBC CALL SuperPIM.0042CD2E***********这个CALL也在计算,我实在不想跟进!0042CDC1 PUSH ESI0042CDC2 LEA EAX, [LOCAL.1]0042CDC5 PUSH 40042CDC7 PUSH EAX0042CDC8 CALL SuperPIM.0042CD5E**********这个CALL也是计算CALL,烦!不跟了!0042CDCD MOV EAX, [ARG.1]0042CDD0 ADD ESP, 180042CDD3 XOR EAX, [LOCAL.1]*************这⾥赋EAX的值380000020042CDD6 POP ESI0042CDD7 LEAVE0042CDD8 RETN=========================================================================算法CALL(2)结束================== 0042CF34 POP ECX0042CF35 POP ECX0042CF36 PUSH 2B***************************常数2B⼊栈!0042CF38 XOR EDX, EDX0042CF3A POP ECX**************************把常数2B赋给ECX0042CF3B DIV ECX**************************除,EAX/ECX=38000002/2B=014D6535,余数1B⼊EDX0042CF3D MOV ECX, EDX*********************结果1B⼊ECX0042CF3F ADD CL, 30***********************CL=CL+30=1B+30=4B(对应的字符串是K)0042CF42 CMP CL, 39***********************⽐较是不是数字90042CF45 MOV BYTE PTR SS:[EBP-14], CL*****保存字符串K0042CF48 JLE SHORT SuperPIM.0042CF55******⼩于就跳⾛!0042CF4A CMP CL, 41***********************⽐较是不是A0042CF4D JGE SHORT SuperPIM.0042CF55******⼤于就跳⾛0042CF4F ADD CL, 0F60042CF52 MOV BYTE PTR SS:[EBP-14], CL0042CF55 CMP EBX, [ARG.3]*****************跳到这⾥!⽐较0和140042CF58 JGE SHORT SuperPIM.0042CF67******⼤于等于就跳⾛!0042CF5A PUSH [LOCAL.5]0042CF5D LEA ECX, [LOCAL.4]0042CF60 CALL SuperPIM.00417EAF0042CF65 JMP SHORT SuperPIM.0042CFA5******⽆条件跳0042CF67 MOV EAX, EBX0042CF69 CDQ0042CF6A IDIV [ARG.3]0042CF6D MOVSX ECX, CL0042CF70 PUSH 2B0042CF72 MOV ESI, EDX0042CF74 MOVSX EAX, BYTE PTR DS:[ESI+EDI]0042CF78 LEA EAX, DWORD PTR DS:[EAX+ECX-60]0042CF7C CDQ0042CF7D POP ECX0042CF7E IDIV ECX0042CF80 ADD DL, 300042CF83 CMP DL, 390042CF86 MOV BYTE PTR SS:[EBP-14], DL0042CF89 JLE SHORT SuperPIM.0042CF960042CF8B CMP DL, 410042CF8E JGE SHORT SuperPIM.0042CF960042CF90 ADD DL, 0F60042CF93 MOV BYTE PTR SS:[EBP-14], DL0042CF96 PUSH [LOCAL.5]0042CF99 LEA ECX, [LOCAL.4]0042CF9C PUSH ESI0042CF9D CALL SuperPIM.0042CE4B0042CFA2 MOV ESI, [LOCAL.8]0042CFA5 MOV EDI, [LOCAL.4]***************上⾯跳到这⾥!0042CFA8 INC EBX*************************EBX加10042CFA9 CMP EBX, [LOCAL.6]**************⽐较1和140042CFAC JL SuperPIM.0042CF1B***********⼩于就跳,循环,序列号只有15位,这⾥循环20次,取完后⼜从第⼀位取出! ************************************循环结束后得到的值是:K3L2LPBDW1F2H4B8S0UY这就是我们要的注册码!0042CFB2 MOV ECX, [ARG.1]0042CFB5 LEA EAX, [LOCAL.4]0042CFB8 PUSH EAX0042CFB9 CALL SuperPIM.00401F360042CFBE LEA ECX, DWORD PTR DS:[EDI-10]0042CFC1 CALL SuperPIM.00401B5D0042CFC6 MOV ECX, [LOCAL.3]0042CFC9 MOV EAX, [ARG.1]0042CFCC POP EDI0042CFCD POP ESI0042CFCE POP EBX0042CFCF MOV DWORD PTR FS:[0], ECX0042CFD6 LEAVE0042CFD7 RETN写这篇⽂章的⽬的是想说明如何在OD下万能断点,算法过程太烦琐,就不想多跟了!希望能对⼤家有点启发,如果觉得这篇破⽂还⾏帮我顶⼀下吧!也是希望有更多的⼈能看到,对更多的⼈有益,我也是⼀只菜鸟,请⼤家多多指点!。