考无忧2017实战破解+注册机

Malimali · 发表于 2017-6-2 12:08:37

考无忧2017实战破解+注册机
考无忧2017是用DELPHI XE2写的，所以还是习惯性的用IDR做剖析。其间涉及到注册码算法的有些，我用OD做了盯梢，并且写了注释，便利我们的了解。
首要，依照原贴中，断网，注册转入离线注册。这儿需要输入的内容如下图：

考生名字，手机号，邮箱等都是随意输的，软件也没有做合法性的判断。
注册码一定要输入25位，不符合条件软件会给出相应的提示。
注册科目是软件主动填好的，因为我下载的是winxp的卷子，所以这儿的科目即是winxp。
机器码也是软件主动填好的。
剩余的工作即是咱们自己输入离线注册码了。
在IDR中，查看离线注册按钮的点击事情。

register.TregisterForm.BitmapButton5Click
00893A00 push ebp
00893A01 mov ebp,esp
00893A03 mov ecx,11
00893A08 push 0
00893A0A push 0
00893A0C dec ecx
00893A0D> jne 00893A08
00893A0F push ecx
00893A10 push ebx
00893A11 mov ebx,eax
00893A13 xor eax,eax
00893A15 push ebp
00893A16 push 893EFB
00893A1B push dword ptr fs:[eax]
00893A1E mov dword ptr fs:[eax],esp
00893A21 movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893A28 push eax
00893A29 lea eax,[ebp-4]
00893A2C push eax
00893A2D lea edx,[ebp-8]
00893A30 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit //Edit6就是我们输入的离线注册码
00893A36 call TControl.GetText
00893A3B mov eax,dword ptr [ebp-8]
00893A3E xor ecx,ecx
00893A40 mov edx,893F1C;' '
00893A45 call StringReplace //去掉空格
00893A4A movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893A51 push eax
00893A52 lea eax,[ebp-4]
00893A55 push eax
00893A56 lea edx,[ebp-0C]
00893A59 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893A5F call TControl.GetText
00893A64 mov eax,dword ptr [ebp-0C]
00893A67 xor ecx,ecx
00893A69 mov edx,893F2C;'　'
00893A6E call StringReplace //去掉全角空格
00893A73 movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893A7A push eax
00893A7B lea eax,[ebp-4]
00893A7E push eax
00893A7F lea edx,[ebp-10]
00893A82 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893A88 call TControl.GetText
00893A8D mov eax,dword ptr [ebp-10]
00893A90 mov ecx,893F3C;'0'
00893A95 mov edx,893F4C;'o'
00893A9A call StringReplace //把小写字母o换成0
00893A9F movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893AA6 push eax
00893AA7 lea eax,[ebp-4]
00893AAA push eax
00893AAB lea edx,[ebp-14]
00893AAE mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893AB4 call TControl.GetText
00893AB9 mov eax,dword ptr [ebp-14]
00893ABC mov ecx,893F3C;'0'
00893AC1 mov edx,893F5C;'ｏ'
00893AC6 call StringReplace //把全角小写字母o换成0
00893ACB movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893AD2 push eax
00893AD3 lea eax,[ebp-4]
00893AD6 push eax
00893AD7 lea edx,[ebp-18]
00893ADA mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893AE0 call TControl.GetText
00893AE5 mov eax,dword ptr [ebp-18]
00893AE8 mov ecx,893F3C;'0'
00893AED mov edx,893F6C;'O'
00893AF2 call StringReplace //把大写字母O换成0
00893AF7 movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893AFE push eax
00893AFF lea eax,[ebp-4]
00893B02 push eax
00893B03 lea edx,[ebp-1C]
00893B06 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893B0C call TControl.GetText
00893B11 mov eax,dword ptr [ebp-1C]
00893B14 mov ecx,893F3C;'0'
00893B19 mov edx,893F7C;'Ｏ'
00893B1E call StringReplace //把全角大写字母O换成0
00893B23 movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893B2A push eax
00893B2B lea eax,[ebp-4]
00893B2E push eax
00893B2F lea edx,[ebp-20]
00893B32 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893B38 call TControl.GetText
00893B3D mov eax,dword ptr [ebp-20]
00893B40 mov ecx,893F8C;'-'
00893B45 mov edx,893F9C;'_'
00893B4A call StringReplace //把下划线换成减号-
00893B4F movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893B56 push eax
00893B57 lea eax,[ebp-4]
00893B5A push eax
00893B5B lea edx,[ebp-24]
00893B5E mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893B64 call TControl.GetText
00893B69 mov eax,dword ptr [ebp-24]
00893B6C mov ecx,893F8C;'-'
00893B71 mov edx,893FAC;'——' //把破折号换成减号-
00893B76 call StringReplace
00893B7B movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893B82 push eax
00893B83 lea eax,[ebp-4]
00893B86 push eax
00893B87 lea edx,[ebp-28]
00893B8A mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893B90 call TControl.GetText
00893B95 mov eax,dword ptr [ebp-28]
00893B98 mov ecx,893F8C;'-'
00893B9D mov edx,893FC0;'—' //把全角横线线换成减号-
00893BA2 call StringReplace
00893BA7 movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893BAE push eax
00893BAF lea eax,[ebp-4]
00893BB2 push eax
00893BB3 lea edx,[ebp-2C]
00893BB6 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893BBC call TControl.GetText
00893BC1 mov eax,dword ptr [ebp-2C]
00893BC4 mov ecx,893F8C;'-'
00893BC9 mov edx,893FD0;'－' //把全角减号换成减号-
00893BCE call StringReplace
00893BD3 movzx eax,byte ptr ds:[893F0C];0x1 gvar_00893F0C
00893BDA push eax
00893BDB lea eax,[ebp-4]
00893BDE push eax
00893BDF lea edx,[ebp-30]
00893BE2 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893BE8 call TControl.GetText
00893BED mov eax,dword ptr [ebp-30]
00893BF0 mov ecx,893F8C;'-'
00893BF5 mov edx,893FE0;'＿'
00893BFA call StringReplace //把下划线换成减号-
00893BFF lea ecx,[ebp-34]
00893C02 mov edx,dword ptr [ebp-4]
00893C05 mov eax,[007944CC];TZhou
00893C0A call TZhou.sbctoDbc
00893C0F mov edx,dword ptr [ebp-34]
00893C12 lea eax,[ebp-4]
00893C15 call @UStrLAsg
00893C1A lea edx,[ebp-38]
00893C1D mov eax,dword ptr [ebp-4]
00893C20 call AnsiUpperCase
00893C25 mov edx,dword ptr [ebp-38]
00893C28 lea eax,[ebp-4]
00893C2B call @UStrLAsg
00893C30 mov edx,dword ptr [ebp-4]
00893C33 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893C39 call TControl.SetText
00893C3E lea edx,[ebp-3C]
00893C41 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893C47 call TControl.GetText
00893C4C cmp dword ptr [ebp-3C],0
00893C50> jne 00893C7D
00893C52 push 0
00893C54 mov ecx,893FE4
00893C59 mov edx,893FF0
00893C5E mov eax,[009295CC];^Application:TApplication
00893C63 mov eax,dword ptr [eax]
00893C65 call TApplication.MessageBox
00893C6A mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893C70 mov edx,dword ptr [eax]
00893C72 call dword ptr [edx+0F4];TWinControl.SetFocus
00893C78> jmp 00893E54
00893C7D call 00892D40 //这里是判断函数
//理由，第一，这个CALL后面就是判断加跳转；
//第二，这个跳转的地址也在这个段，所以应该是判断注册码的地方。
00893C82 cmp dword ptr ds:[0A343D4],1;gvar_00A343D4
00893C89> jne 00893E2E
00893C8F lea edx,[ebp-4C]
00893C92 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893C98 call TControl.GetText
00893C9D mov eax,dword ptr [ebp-4C]
00893CA0 lea edx,[ebp-48]
00893CA3 call EncodeString
00893CA8 mov eax,dword ptr [ebp-48]
00893CAB lea edx,[ebp-44]
00893CAE call 0043121C
00893CB3 mov ecx,dword ptr [ebp-44]
00893CB6 lea eax,[ebp-40]
00893CB9 mov edx,894010;'update user set Rcode='
00893CBE call @UStrCat3
00893CC3 mov edx,dword ptr [ebp-40]
00893CC6 mov eax,[0092946C];^gvar_00A345C8:TCtl
00893CCB mov eax,dword ptr [eax]
00893CCD call TCtl.exeSQLStatement
00893CD2 lea edx,[ebp-5C]
00893CD5 mov eax,dword ptr [ebx+3C4];TregisterForm.Edit1:TEdit
00893CDB call TControl.GetText
00893CE0 mov eax,dword ptr [ebp-5C]
00893CE3 lea edx,[ebp-58]
00893CE6 call EncodeString
00893CEB mov eax,dword ptr [ebp-58]
00893CEE lea edx,[ebp-54]
00893XF1 call 0043121C
00893XF6 mov ecx,dword ptr [ebp-54]
00893XF9 lea eax,[ebp-50]
00893XFC mov edx,89404C;'update user set Acode='
00893D01 call @UStrCat3
00893D06 mov edx,dword ptr [ebp-50]
00893D09 mov eax,[0092946C];^gvar_00A345C8:TCtl
00893D0E mov eax,dword ptr [eax]
00893D10 call TCtl.exeSQLStatement
00893D15 lea edx,[ebp-6C]
00893D18 mov eax,dword ptr [ebx+3B8];TregisterForm.Edit2:TEdit
00893D1E call TControl.GetText
00893D23 mov eax,dword ptr [ebp-6C]
00893D26 lea edx,[ebp-68]
00893D29 call Trim
00893D2E mov eax,dword ptr [ebp-68]
00893D31 lea edx,[ebp-64]
00893D34 call 0043121C
00893D39 mov ecx,dword ptr [ebp-64]
00893D3C lea eax,[ebp-60]
00893D3F mov edx,894088;'update user set Name='
00893D44 call @UStrCat3
00893D49 mov edx,dword ptr [ebp-60]
00893D4C mov eax,[0092946C];^gvar_00A345C8:TCtl
00893D51 mov eax,dword ptr [eax]
00893D53 call TCtl.exeSQLStatement
00893D58 lea edx,[ebp-7C]
00893D5B mov eax,dword ptr [ebx+3BC];TregisterForm.Edit4:TEdit
00893D61 call TControl.GetText
00893D66 mov eax,dword ptr [ebp-7C]
00893D69 lea edx,[ebp-78]
00893D6C call Trim
00893D71 mov eax,dword ptr [ebp-78]
00893D74 lea edx,[ebp-74]
00893D77 call 0043121C
00893D7C mov ecx,dword ptr [ebp-74]
00893D7F lea eax,[ebp-70]
00893D82 mov edx,8940C0;'update user set Phone='
00893D87 call @UStrCat3
00893D8C mov edx,dword ptr [ebp-70]
00893D8F mov eax,[0092946C];^gvar_00A345C8:TCtl
00893D94 mov eax,dword ptr [eax]
00893D96 call TCtl.exeSQLStatement
00893D9B lea edx,[ebp-8C]
00893DA1 mov eax,dword ptr [ebx+3C0];TregisterForm.Edit5:TEdit
00893DA7 call TControl.GetText
00893DAC mov eax,dword ptr [ebp-8C]
00893DB2 lea edx,[ebp-88]
00893DB8 call Trim
00893DBD mov eax,dword ptr [ebp-88]
00893DC3 lea edx,[ebp-84]
00893DC9 call 0043121C
00893DCE mov ecx,dword ptr [ebp-84]
00893DD4 lea eax,[ebp-80]
00893DD7 mov edx,8940FC;'update user set Email='
00893DDC call @UStrCat3
00893DE1 mov edx,dword ptr [ebp-80]
00893DE4 mov eax,[0092946C];^gvar_00A345C8:TCtl
00893DE9 mov eax,dword ptr [eax]
00893DEB call TCtl.exeSQLStatement
00893DF0 push 0
00893DF2 mov ecx,893FE4
00893DF7 mov edx,89412C
00893DFC mov eax,[009295CC];^Application:TApplication
00893E01 mov eax,dword ptr [eax]
00893E03 call TApplication.MessageBox
00893E08 mov eax,[0092946C];^gvar_00A345C8:TCtl
00893E0D mov eax,dword ptr [eax]
00893E0F call TCtl.clearTryHistroy
00893E14 push 1
00893E16 push 894154;'start.exe'
00893E1B call kernel32.WinExec
00893E20 mov eax,[009295CC];^Application:TApplication
00893E25 mov eax,dword ptr [eax]
00893E27 call TApplication.Terminate
00893E2C> jmp 00893E54
00893E2E push 0
00893E30 mov ecx,893FE4
00893E35 mov edx,894160
00893E3A mov eax,[009295CC];^Application:TApplication
00893E3F mov eax,dword ptr [eax]
00893E41 call TApplication.MessageBox
00893E46 mov eax,dword ptr [ebx+3D0];TregisterForm.Edit6:TEdit
00893E4C mov edx,dword ptr [eax]
00893E4E call dword ptr [edx+0F4];TWinControl.SetFocus
00893E54 xor eax,eax
00893E56 pop edx
00893E57 pop ecx
00893E58 pop ecx
00893E59 mov dword ptr fs:[eax],edx
00893E5C push 893F05
00893E61 lea eax,[ebp-8C]
00893E67 call @UStrClr
00893E6C lea eax,[ebp-88]
00893E72 mov edx,3
00893E77 call @UStrArrayClr
00893E7C lea eax,[ebp-7C]
00893E7F call @UStrClr
00893E84 lea eax,[ebp-78]
00893E87 mov edx,3
00893E8C call @UStrArrayClr
00893E91 lea eax,[ebp-6C]
00893E94 call @UStrClr
00893E99 lea eax,[ebp-68]
00893E9C mov edx,3
00893EA1 call @UStrArrayClr
00893EA6 lea eax,[ebp-5C]
00893EA9 call @UStrClr
00893EAE lea eax,[ebp-58]
00893EB1 mov edx,3
00893EB6 call @UStrArrayClr
00893EBB lea eax,[ebp-4C]
00893EBE call @UStrClr
00893EC3 lea eax,[ebp-48]
00893EC6 mov edx,3
00893ECB call @UStrArrayClr
00893ED0 lea eax,[ebp-3C]
00893ED3 call @UStrClr
00893ED8 lea eax,[ebp-38]
00893EDB mov edx,2
00893EE0 call @UStrArrayClr
00893EE5 lea eax,[ebp-30]
00893EE8 mov edx,0B
00893EED call @UStrArrayClr
00893EF2 lea eax,[ebp-4]
00893EF5 call @UStrClr
00893EFA ret
00893EFB> jmp @HandleFinally
00893F00> jmp 00893E61
00893F05 pop ebx
00893F06 mov esp,ebp
00893F08 pop ebp
00893F09 ret

复制代码

代码的前面一大段是对输入的离线注册码进行一些小的处理，首要即是把字符变为半角罢了，到后边有个函数的判别，我也标示出来了。并且为何要关注这个函数，作为破解的经历，也同时共享给咱们。
那么咱们就持续看那个函数，假如只剖析代码，也许咱们不太好了解，我把OD盯梢的示例也同时加进去，方便咱们了解。

register.sub_00892D40
00892D40 push ebp
00892D41 mov ebp,esp
00892D43 mov ecx,8
00892D48 push 0
00892D4A push 0
00892D4C dec ecx
00892D4D> jne 00892D48
00892D4F push ecx
00892D50 push ebx
00892D51 push esi
00892D52 push edi
00892D53 xor eax,eax
00892D55 push ebp
00892D56 push 892F39
00892D5B push dword ptr fs:[eax]
00892D5E mov dword ptr fs:[eax],esp
00892D61 xor eax,eax
00892D63 push ebp
00892D64 push 892EFF
00892D69 push dword ptr fs:[eax]
00892D6C mov dword ptr fs:[eax],esp
00892D6F mov dl,1
00892D71 mov eax,[00765BD8];TIdHashMessageDigest5
00892D76 call TIdHashMessageDigest4.Create;TIdHashMessageDigest5.Create
00892D7B mov ebx,eax
00892D7D lea edx,[ebp-4]
00892D80 mov eax,[00A343A8];gvar_00A343A8:TregisterForm
00892D85 mov eax,dword ptr [eax+3C4]
00892D8B call TControl.GetText
00892D90 movzx eax,byte ptr ds:[892F4C];0x1 gvar_00892F4C
00892D97 push eax
00892D98 lea eax,[ebp-1C]
00892D9B push eax
00892D9C movzx eax,byte ptr ds:[892F4C];0x1 gvar_00892F4C
00892DA3 push eax
00892DA4 lea eax,[ebp-20]
00892DA7 push eax
00892DA8 push dword ptr ds:[0A343B4];gvar_00A343B4:UnicodeString //4700D-936AF-CEB02-9A5B8，也就是机器码
00892DAE push 892F5C;'&' //&字符
00892DB3 push dword ptr [ebp-4] //1234567890123456789012345，我们输入的注册码
00892DB6 push 892F5C;'&' //&字符
00892DBB lea eax,[ebp-2C]
00892DBE mov edx,4 //一共4个部分
00892DC3 call @UStrCatN //4个部分合并，机器码 & 注册码 &
00892DC8 mov edx,dword ptr [ebp-2C] //合并后的字符串是4700D-936AF-CEB02-9A5B8&1234567890123456789012345&
00892DCB lea ecx,[ebp-28]
00892DCE mov eax,[007944CC];TZhou
00892DD3 call TZhou.sbctoDbc //这里是干嘛的暂时不知，应该是对字符串做处理的函数，但是好像对我们这个字符串没有影响，先跳过
//百度了一下，sbctoDbc应该是全角转半角的函数，所以这里直接忽略了
00892DD8 mov eax,dword ptr [ebp-28]
00892DDB lea edx,[ebp-24]
00892DDE call AnsiUpperCase
00892DE3 mov eax,dword ptr [ebp-24]
00892DE6 xor ecx,ecx
00892DE8 mov edx,892F6C;'-'
00892DED call StringReplace //去掉减号-
00892DF2 mov eax,dword ptr [ebp-20]
00892DF5 xor ecx,ecx
00892DF7 mov edx,892F7C;' '
00892DFC call StringReplace //去掉空格
00892E01 mov edx,dword ptr [ebp-1C] //于是我们得到了字符串4700D936AFCEB029A5B8&1234567890123456789012345&
00892E04 lea eax,[ebp-8]
00892E07 mov ecx,dword ptr ds:[0A343C0];gvar_00A343C0:UnicodeString //这里是注册科目winxp
00892E0D call @UStrCat3 //再合并
00892E12 lea eax,[ebp-0C]
00892E15 push eax
00892E16 xor ecx,ecx
00892E18 mov edx,dword ptr [ebp-8] //于是就得到了新的字符串4700D936AFCEB029A5B8&1234567890123456789012345&winxp
00892E1B mov eax,ebx
00892E1D call TIdHash.HashStringAsHex //这个字符串做MD5转换，得到FF154F7AFB41E7B90B99D975625C6A57
00892E22 lea eax,[ebp-10]
00892E25 push eax
00892E26 lea eax,[ebp-30]
00892E29 push eax
00892E2A mov ecx,14 //0x14=20
00892E2F xor edx,edx
00892E31 mov eax,dword ptr [ebp-0C]
00892E34 call @UStrCopy //取前20位，得到字符串FF154F7AFB41E7B90B99
00892E39 mov edx,dword ptr [ebp-30]
00892E3C xor ecx,ecx
00892E3E mov eax,ebx
00892E40 call TIdHash.HashStringAsHex //再做MD5转换，得到A3122F54C1523C53FE1XF250E62D7BC9
00892E45 lea eax,[ebp-34]
00892E48 push eax
00892E49 mov ecx,5
00892E4E xor edx,edx
00892E50 mov eax,dword ptr [ebp-10]
00892E53 call @UStrCopy //取前5位A3122
00892E58 push dword ptr [ebp-34]
00892E5B push 892F6C;'-' //合并上-
00892E60 lea eax,[ebp-38]
00892E63 push eax
00892E64 mov ecx,5 //取5位
00892E69 mov edx,6 //从第6位开始取
00892E6E mov eax,dword ptr [ebp-10]
00892E71 call @UStrCopy //得到F54C1
00892E76 push dword ptr [ebp-38]
00892E79 push 892F6C;'-' //再合并上-
00892E7E lea eax,[ebp-3C]
00892E81 push eax
00892E82 mov ecx,5 //取5位
00892E87 mov edx,0B //从第11位开始取
00892E8C mov eax,dword ptr [ebp-10]
00892E8F call @UStrCopy //得到523C5
00892E94 push dword ptr [ebp-3C]
00892E97 push 892F6C;'-' //再合并上-
00892E9C lea eax,[ebp-40]
00892E9F push eax
00892EA0 mov ecx,5 //取5位
00892EA5 mov edx,10 //从第16位开始取
00892EAA mov eax,dword ptr [ebp-10]
00892EAD call @UStrCopy //得到3FE1C
00892EB2 push dword ptr [ebp-40]
00892EB5 lea eax,[ebp-14]
00892EB8 mov edx,7 //一共7个部分
00892EBD call @UStrCatN //合并，得到A3122-F54C1-523C5-3FE1C
00892EC2 lea edx,[ebp-44]
00892EC5 mov eax,[00A343A8];gvar_00A343A8:TregisterForm
00892ECA mov eax,dword ptr [eax+3D0]
00892ED0 call TControl.GetText
00892ED5 mov edx,dword ptr [ebp-44] //输入的离线注册码ABCDE
00892ED8 mov eax,dword ptr [ebp-14] //刚才算出来的离线注册码A3122-F54C1-523C5-3FE1C
00892EDB call @UStrEqual //判断是不是相等
00892EE0> jne 00892EEE
00892EE2 mov dword ptr ds:[0A343D4],1;gvar_00A343D4
00892EEC> jmp 00892EF5
00892EEE xor eax,eax
00892EF0 mov [00A343D4],eax;gvar_00A343D4
00892EF5 xor eax,eax
00892EF7 pop edx
00892EF8 pop ecx
00892EF9 pop ecx
00892EFA mov dword ptr fs:[eax],edx
00892EFD> jmp 00892F09
00892EFF> jmp @HandleAnyException
00892F04 call @DoneExcept
00892F09 xor eax,eax
00892F0B pop edx
00892F0C pop ecx
00892F0D pop ecx
00892F0E mov dword ptr fs:[eax],edx
00892F11 push 892F40
00892F16 lea eax,[ebp-44]
00892F19 call @UStrClr
00892F1E lea eax,[ebp-40]
00892F21 mov edx,0A
00892F26 call @UStrArrayClr
00892F2B lea eax,[ebp-14]
00892F2E mov edx,5
00892F33 call @UStrArrayClr
00892F38 ret
00892F39> jmp @HandleFinally
00892F3E> jmp 00892F16
00892F40 mov eax,dword ptr [ebp-18]
00892F43 pop edi
00892F44 pop esi
00892F45 pop ebx
00892F46 mov esp,ebp
00892F48 pop ebp
00892F49 ret

复制代码

这个代码我们应当能看懂了吧？算法本来很简单，字符串拼到一起，MD5处理，取前20位，再MD5处理一下，然后再取前20位，每5位一组分隔，中心用-衔接即为真正的离线注册码。
注册机也趁便写出来了，用注册机的成果如下：

通用注册机

K51_KeyGen.rar (55.39 KB, 下载次数: 132)

联系我时，请说是在挂海论坛上看到的，谢谢！

zz0147 · 发表于 2017-6-2 15:17:46

{:じοじ:}{:じοじ:}{:じοじ:}
这么块就出注册机了

39380719 · 发表于 2017-6-2 21:49:48

想下载。。。。。。。。。

52_bbs · 发表于 2017-6-3 13:25:12

楼主，解压密码是多少啊？

luckylu123 · 发表于 2017-6-9 09:14:53

谢谢分享，下载过来看看是否可用

123asd2 · 发表于 2017-6-9 17:46:35

谢谢分享，下载过来看看是否可用

bravo100 · 发表于 2017-6-10 19:28:17

有解压密码耶

wang131642 · 发表于 2017-6-11 10:23:35

解压密码是什么啊

jjij365 · 发表于 2017-7-25 21:00:41

解压缩密码、？？

空心萝卜 · 发表于 2017-9-10 21:44:47

本帖最后由空心萝卜于 2017-9-10 21:54 编辑

楼主辛苦了

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