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[分享]自己解决了！AspectC++ Add-In for Microsoft® Visual C++® 的破解过程
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发表于: 2009-8-13 10:38
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AspectC++ Add-In for Microsoft® Visual C++® http://www.pure-systems.com/fileadmin/downloads/acaddin/Aspectc-AddIn-Setup-010101.exe
我用的是VS2003环境
调试目标：C:\Program Files\pure-systems\AspectC++ Add-In\bin\CPPAddin.dll
工具：用OD调试，IDA+Hex-rays分析
重点集中在以下几个地址
0x10008e60 弹许可文件询问的对话框
0x10017a20 解析xml格式的许可文件
0x10017730 貌似许可检查的地方
这个是
0x10008e60的由Hex-ray分析出来的伪代码,
char __usercall sub_1000E860<al>(int a1<ebx>)
{
int ST14_4_0; // ST14_4@0
int v2; // ST10_4@1
const CHAR *v3; // eax@3
const CHAR *v4; // eax@10
int v6; // eax@2
char v7; // bl@2
char v8; // al@9
int v9; // [sp+Ch] [bp-9Ch]@1
signed int v10; // [sp+A4h] [bp-4h]@1
char v11; // [sp+10h] [bp-98h]@1
char v12; // [sp+48h] [bp-60h]@2
char v13; // [sp+2Ch] [bp-7Ch]@2
LPCSTR lpText; // [sp+14h] [bp-94h]@3
unsigned int v15; // [sp+28h] [bp-80h]@3
char v16; // [sp+64h] [bp-44h]@15
BYTE3(v9) = 0;
sub_10016AA0();
v10 = 0;
std__basic_string_char_std__char_traits_char__std__allocator_char____basic_string_char_std__char_traits_char__std__allocator_char__(&v11);
LOBYTE(v10) = 1;
v2 = a1;
while ( 1 )
{
sub_100169B0(16, (int)&v12);
LOBYTE(v10) = 2;
v6 = std__operator_(&v13, v6, "\\etc\\licence");
LOBYTE(v10) = 3;
v7 = sub_10017A20((int)&unk_10024460, v6, (int)&v11) == 0;
LOBYTE(v10) = 2;
std__basic_string_char_std__char_traits_char__std__allocator_char_____basic_string_char_std__char_traits_char__std__allocator_char__(&v13);
LOBYTE(v10) = 1;
std__basic_string_char_std__char_traits_char__std__allocator_char_____basic_string_char_std__char_traits_char__std__allocator_char__(&v12);
if ( !v7 )
break;
std__basic_string_char_std__char_traits_char__std__allocator_char____operator__(
&v11,
"\nThe add-in will not work without a valid licence.\n\nInstall the licence file now?",
v2);
v3 = lpText;
if ( v15 < 0x10 )
v3 = (const CHAR *)&lpText;
if ( MessageBoxA(0, v3, "AspectC++ Add-In for Visual Studio .NET", 0x24u) != 6 )
break;
if ( !sub_1000E690() )
{
MessageBoxA(0, "Installation of licence file failed.", "AspectC++ Add-In", 0x40u);
break;
}
}
if ( byte_10024465 )
{
sub_10017730((int)&unk_10024460, 16, (int)&v11);
if ( v8 && (unsigned __int8)sub_10017520(&v11) != 1 )
{
BYTE3(v9) = 1;
}
else
{
std__basic_string_char_std__char_traits_char__std__allocator_char____operator__(
&v11,
"\nThe add-in will not work.",
ST14_4_0);
v4 = lpText;
if ( v15 < 0x10 )
v4 = (const CHAR *)&lpText;
MessageBoxA(0, v4, "AspectC++ Add-In", 0x40u);
}
}
LOBYTE(v10) = 0;
std__basic_string_char_std__char_traits_char__std__allocator_char_____basic_string_char_std__char_traits_char__std__allocator_char__(&v11);
v10 = -1;
sub_10016910((int)&v16);
return BYTE3(v9);
}
基本上可以得出默认是分析
C:\Program Files\pure-systems\AspectC++ Add-In\etc\licence 许可文件
分析过程应该在0x10017a20里
char __thiscall sub_10017A20(int this, int a2, int a3)
{
int v3; // ebp@1
int v4; // esi@1
int v5; // eax@2
int v6; // eax@4
int v7; // edi@5
char result; // al@8
int v9; // ecx@1
int v10; // eax@5
int v11; // eax@6
int v12; // ST04_4@6
char v13; // bl@6
char v14; // [sp+Ch] [bp-28h]@6
signed int v15; // [sp+30h] [bp-4h]@6
v3 = a3;
v4 = this;
v9 = this + 96;
*(_DWORD *)v9 = 0;
*(_DWORD *)(v9 + 4) = 0;
*(_DWORD *)(v9 + 8) = 0;
*(_DWORD *)(v9 + 12) = 0;
*(_BYTE *)(v4 + 5) = 0;
std__basic_string_char_std__char_traits_char__std__allocator_char____operator_(v3, "Loading licence file failed.");
if ( *(_DWORD *)(a2 + 24) < 0x10u )
v5 = a2 + 4;
else
v5 = *(_DWORD *)(a2 + 4);
v6 = xmlParseFile(v5);
*(_DWORD *)v4 = v6;
if ( v6
&& (v10 = xmlDocGetRootElement(v6), v7 = v10, v10)
&& (v11 = std__basic_string_char_std__char_traits_char__std__allocator_char____basic_string_char_std__char_traits_char__std__allocator_char__(
&v14,
"licence"), v12 = *(_DWORD *)(v7 + 8), v15 = 0, v13 = std__operator__(v11, v12), v15 = -1, std__basic_string_char_std__char_traits_char__std__allocator_char_____basic_string_char_std__char_traits_char__std__allocator_char__(&v14), v13)
&& sub_10017930(v7) )
{
*(_BYTE *)(v4 + 5) = 1;
sub_10017730(v4, v3, v3);
result = 1;
}
else
{
result = 0;
}
return result;
}
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自己能够解决的问题，最好不要麻烦别人！呵呵~
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学习一下呵呵！
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