【逆向】导入表注入
练手的exe链接
链接：https://pan.baidu.com/s/1_87QNHaZYlfY_5uwIRePUQ?pwd=6gds
提取码：6gds
原理：
在动态链接库一章提到DllMain，这里再回顾一次
当dll被加载进4GB空间时，会调用一次DllMain（入口方法）
当程序执行完了要把dll从4GB空间被卸载，也会调用一次DllMain
很淦，各种问题频出，这回做了整整六个小时，六个小时啊有木有，总结就是，太自大了，没认真听课，直接上手，吃瘪了。
首先说说创建dll文件吧，我选择的是用.def导出，这样我就可以用Depend查看里边的具体函数名和导出序号。很淦的是，当学到动态链接库的时候尝试过自己用def导出dll文件，当时啥问题都没有，一路畅通，但是很淦的是，昨天却死活导不出，只有dll没有lib文件，导致把dll放到Depend什么东东都没看见。各大资料，博客哥们都要翻烂了，还是没能解决，最后.......家人们，好无语啊，原来我添加def的时候是通过手动改后缀为.def，然后死活不行，机缘巧合，我删了原来的def，采用下图这样添加.def文件，然后导出，涅马，成功导出dll和lib了。（耗费一小时）
以下是dll具体实现
#include "pch.h"
#include "Dll2.h"
#include "framework.h"
void Init()
{
MessageBox(0, L"INIT", L"INIT", MB_OK);
}
void Destroy()
{
MessageBox(0, L"Destroy", L"Destroy", MB_OK);
}
void ExportFunction()
{
MessageBox(0, L"ExportFunction", L"ExportFunction", MB_OK);
}
BOOL APIENTRY DllMain(HMODULE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
Init();
break;
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
Destroy();
break;
}
return TRUE;
}def文件
LIBRARY "dllmain"
EXPORTS
Init @14
ExportFunction @15
Destroy @16导入表和导出表的关系
谈谈我的理解，当exe想要调用dll里的函数的时候，首先去导入表找对应的函数名或者导出序号，如果IAT有现成的已经绑定好的地址，那么就直接调用，如果没有，则需要通过INT IAT表存着的函数名或者导出序号，然后调用GetProcAddress() 函数去导出表找对应的函数真实地址，填在IAT，然后调用函数。（精简的回答）
导入表注入的步骤：
第一步，移动导入表：
首先我们要明白为什么要移动导入表，为什么不能在EXE程序最后一个导入表后面追加一个导入表呢？
就拿我这个程序来说，黑色部分就是导入表了，可以看到，导入表的后门就是一大堆我也不知道啥数据，但是肯定动了就寄了，因此根本没空间让我们新添加东西，所以我们只能扩大节或者新增节，去挪动我们的导入表，这里我选择的是新增节
第二步：修改exe的信息:
改PE头关于节的属性，改exe程序的大小,记住新增节的属性是0XC0000060（反正权限都给就对了），然后讲节表里的导入表的偏移地址修改成挪动后的地址
第三步，新增导入表:
按照这个结构来，注意注意，我在这踩坑了，哎。
就是构造IAT,INT的时候要注意结束符！！要留够一个DWORD大小的0，不然在PEtool甚至不能分析新增dll的，和里面的函数。淦，太淦了，还有导入表的OriginalFirstThunk和FirstThunk要先指向一个IMAGE_THUNK_DATA的结构，这个结构是一个联合体
typedef struct _IMAGE_THUNK_DATA32 {
union {
PBYTE ForwarderString;
PDWORD Function;
DWORD Ordinal; //序号
PIMAGE_IMPORT_BY_NAME AddressOfData;//指向IMAGE_IMPORT_BY_NAME
} u1;
} IMAGE_THUNK_DATA32;
typedef IMAGE_THUNK_DATA32 * PIMAGE_THUNK_DATA32; 其他三个没有用，只用到
PIMAGE_IMPORT_BY_NAME AddressOfData;
指向一个IMAGE_IMPORT_BY_NAME结构
而不是让导入表的OriginalFirstThunk和FirstThunk直接指向IMAGE_IMPORT_BY_NAME结构。
以下是代码：
VOID PE::Import_Table_Injection(Data& my_data)
{
//首先先要挪动导出表
//获得dll的大小
DWORD real_dll_size = my_data.Import_Directory_num * sizeof(IMAGE_IMPORT_DESCRIPTOR);
DWORD dll_size = Section_Align(real_dll_size, my_data);
DWORD size_of_rawdata = File_Align(real_dll_size, my_data);
//申请一个新的空间
DWORD new_data_size = my_data.my_optional->SizeOfImage+dll_size;
Data new_data;
new_data.Stretch_Data = new char[new_data_size];
memset(new_data.Stretch_Data, 0, new_data_size);
DWORD SIZE = _msize(new_data.Stretch_Data);
memcpy_s(new_data.Stretch_Data, new_data_size, my_data.Stretch_Data, my_data.my_optional->SizeOfImage);
//修改节的属性
Analyze_PE(new_data, 2);
new_data.my_file->NumberOfSections += 1;
Analyze_PE(new_data, 2);//必须再分析一次，否则Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]会报错
new_data.my_optional->SizeOfImage = new_data_size;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->Characteristics = my_data.my_section[0]->Characteristics;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->Misc.VirtualSize = real_dll_size;
memcpy_s(new_data.my_section[new_data.my_file->NumberOfSections - 1]->Name, 7, "inject", 7);
new_data.my_section[new_data.my_file->NumberOfSections - 1]->NumberOfLinenumbers = my_data.my_section[0]->NumberOfLinenumbers;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->NumberOfRelocations = my_data.my_section[0]->NumberOfRelocations;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->PointerToLinenumbers = my_data.my_section[0]->PointerToLinenumbers;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->PointerToRawData = my_data.my_section[my_data.my_file->NumberOfSections - 1]->PointerToRawData + my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->PointerToRelocations = my_data.my_section[0]->PointerToRelocations;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->SizeOfRawData = size_of_rawdata;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->VirtualAddress = my_data.my_section[my_data.my_file->NumberOfSections - 1]->VirtualAddress + Section_Align(my_data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize, my_data);
cout<NumberOfSections - 1]->VirtualAddress);
DWORD GAP = (DWORD)new_data_ptr - (DWORD)new_data.Stretch_Data;
memcpy_s(new_data_ptr, import_table_size, import_table_ptr, import_table_size);
//修改导入表的入口地址和大小
new_data.my_Data_Directory[1]->VirtualAddress = (DWORD)new_data_ptr-(DWORD)new_data.Stretch_Data;
new_data.my_Data_Directory[1]->Size=0x3c;
//新增导入表
PIMAGE_IMPORT_DESCRIPTOR new_import_ptr2=(PIMAGE_IMPORT_DESCRIPTOR)((DWORD)new_data_ptr+ import_table_size);
new_import_ptr2->FirstThunk = (DWORD)nullptr;
new_import_ptr2->TimeDateStamp = 0;
new_import_ptr2->OriginalFirstThunk = (DWORD)nullptr;
new_import_ptr2->ForwarderChain = 0;
//让FirstThunk指向自己伪造的IAT表，让OriginalFirstThunk指向伪造的INT表
PIMAGE_IMPORT_BY_NAME new_data_import_by_name = (PIMAGE_IMPORT_BY_NAME)((DWORD)new_data_ptr+3*0X14+0X10 );//指向新的空间
PIMAGE_IMPORT_BY_NAME temp_by_name_ptr = new_data_import_by_name;
new_data_import_by_name->Hint = 0;
strcpy_s(new_data_import_by_name->Name, 0x5, "Init");
new_data_import_by_name = (PIMAGE_IMPORT_BY_NAME)((DWORD)new_data_import_by_name + 0x7);
strcpy_s((PCHAR)((DWORD)new_data_import_by_name), 0x9, "Dll2.dll");
new_import_ptr2->Name = (DWORD)new_data_import_by_name-(DWORD)new_data.Stretch_Data;
new_data_import_by_name = (PIMAGE_IMPORT_BY_NAME)((DWORD)new_data_import_by_name - 0x7);
IMAGE_THUNK_DATA32* thunk_ptr = (IMAGE_THUNK_DATA32*)((DWORD)new_data_ptr + 3 * 0x14);
thunk_ptr->u1.AddressOfData = (DWORD)new_data_import_by_name - (DWORD)new_data.Stretch_Data;
new_import_ptr2->FirstThunk = (DWORD)thunk_ptr - (DWORD)new_data.Stretch_Data;
thunk_ptr = (IMAGE_THUNK_DATA32*)((DWORD)thunk_ptr + 0X8);
thunk_ptr->u1.AddressOfData = (DWORD)new_data_import_by_name - (DWORD)new_data.Stretch_Data;
new_import_ptr2->OriginalFirstThunk = (DWORD)thunk_ptr - (DWORD)new_data.Stretch_Data;
//缩小保存
FILE* my_dll;
Shrink_PE(new_data);
Analyze_PE(new_data, 3);
DWORD Size = _msize(new_data.Shrink_Data);
if (fopen_s(&my_dll, "inject", "wb") == 0)
{
fwrite(new_data.Shrink_Data, 1, Size, my_dll);
cout << "写入成功！" << endl;
return;
}
else
{
cout << "写入失败！" << endl;
}
} 完整的代码，可直接运行：
#include
#include
#include
#include
#include
using namespace std;
int MAX(int a, int b)
{
return a >= b ? a : b;
}
class Data
{
public:
PIMAGE_DOS_HEADER my_dos;//dos头结构
PIMAGE_FILE_HEADER my_file;//file结构
PIMAGE_OPTIONAL_HEADER32 my_optional;//可选PE头结构
PIMAGE_SECTION_HEADER* my_section;//节表结构
PIMAGE_DATA_DIRECTORY* my_Data_Directory;//数据目录结构
//0.导出表 1.导入表 2.资源表 3.异常信息表 4.安全证书表 5.重定位表 6.调试信息表 7.版权所以表
//8.全局指针表 9.TLS表 10.加载配置表 11.绑定导入表 12.IAT表 13.延迟绑定表 14.COM信息表 15.未使用
CHAR my_Export_Name[50][30];//导出表的名字
PIMAGE_EXPORT_DIRECTORY my_Export_Directory; //指向导出表结构的指针
DWORD Export_AddressOfFunction[50]; //指向导出表中函数的地址
PIMAGE_BASE_RELOCATION Relocation_Table[500]; //指向重定位表的数组
PIMAGE_IMPORT_DESCRIPTOR* my_Import_Directory; //指向导入表
DWORD Import_Directory_num; //导入表的数量
void* Before_Stretch_Data; //指向拉伸前的内容
void* Stretch_Data; //指向拉伸后的内容
void* Shrink_Data; //指向缩小PE结构的内容
Data()
{
my_dos = nullptr;//dos头结构
my_file = nullptr;//file结构
my_optional = nullptr;//可选PE头结构
my_section = nullptr;//节表结构
my_Data_Directory = nullptr;
my_Import_Directory = nullptr;
Before_Stretch_Data = nullptr; //指向拉伸前的内容
Stretch_Data = nullptr; //指向拉伸后的内容
Shrink_Data = nullptr; //指向缩小PE结构的内容
Import_Directory_num = 0;
}
~Data()
{
if (Before_Stretch_Data != nullptr)
{
free(Before_Stretch_Data);
Before_Stretch_Data = nullptr;
}
if (Stretch_Data != nullptr)
{
free(Stretch_Data);
Stretch_Data = nullptr;
}
if (Shrink_Data != nullptr)
{
free(Shrink_Data);
Shrink_Data = nullptr;
}
}
VOID Copy_Before_Strectch_Data(Data my_data); //只深拷贝Before_Strectch_Data
};
VOID Data::Copy_Before_Strectch_Data(Data my_data)
{
int size = _msize(my_data.Before_Stretch_Data);
memcpy_s(this->Before_Stretch_Data, size, my_data.Before_Stretch_Data, size);
}
class PE
{
public:
VOID Readfile(char* filename, Data& my_data); //读取pe文件
VOID Analyze_PE(Data& my_data, int num); //分析pe结构
VOID Stretch_PE(Data& my_data); //拉伸pe结构
VOID Shrink_PE(Data& my_data); //缩小pe结构
VOID New_Section(char* filename, Data& my_data);//新增节，非扩大节，并写入新的exe文件中
VOID Expand_Section(Data& my_data, char* filename); //扩大节
DWORD Section_Align(DWORD temp, Data& my_data); //返回内存对齐后的大小
DWORD File_Align(DWORD temp, Data& my_data); //返回文件对齐后的大小
VOID Combine_Section(char* filename, Data& my_data); //合并节
VOID Copy_Data(Data& my_data);
VOID Print_IMAGE_DATA_DIRECTORY(Data& my_data); //打印目录结构
VOID Analyze_Data_Directory(Data& my_data); //分析目录结构 //先分析才能打印
DWORD Rva_To_Foa(DWORD Rva_Offset, Data& my_data); //Rva转Foa
VOID Print_ExportTable(Data& my_data); //打印导出表
VOID GetFunctionAddrByName(Data& my_data, char* name); //通过函数名字输出DLL里函数的偏移
VOID GetFunctionAddrByOrdinal(Data& my_data, int ordinal); //通过序号输出DLL里函数的偏移
VOID Print_Relocation(Data& mydata); //打印重定位表
VOID Remove_Export_Table(Data& my_data); //移动导出表
VOID Remove_Relocation(Data& my_data); //移动重定位表
VOID Analyze_Import_Table(Data& my_data); //分析导入表
VOID Print_Import_Table(Data& my_data); //打印导入表
VOID Print_IAT(Data& my_data); //打印IAT表
VOID Print_INT(Data& my_data);//打印INT表
VOID Print_BOUND_IMPORT(Data& my_data);//打印绑定导出表的内容
VOID Import_Table_Injection(Data& my_data); //导入表注入
};
VOID PE::Import_Table_Injection(Data& my_data)
{
//首先先要挪动导出表
//获得dll的大小
DWORD real_dll_size = my_data.Import_Directory_num * sizeof(IMAGE_IMPORT_DESCRIPTOR);
DWORD dll_size = Section_Align(real_dll_size, my_data);
DWORD size_of_rawdata = File_Align(real_dll_size, my_data);
//申请一个新的空间
DWORD new_data_size = my_data.my_optional->SizeOfImage+dll_size;
Data new_data;
new_data.Stretch_Data = new char[new_data_size];
memset(new_data.Stretch_Data, 0, new_data_size);
DWORD SIZE = _msize(new_data.Stretch_Data);
memcpy_s(new_data.Stretch_Data, new_data_size, my_data.Stretch_Data, my_data.my_optional->SizeOfImage);
//修改节的属性
Analyze_PE(new_data, 2);
new_data.my_file->NumberOfSections += 1;
Analyze_PE(new_data, 2);//必须再分析一次，否则Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]会报错
new_data.my_optional->SizeOfImage = new_data_size;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->Characteristics = my_data.my_section[0]->Characteristics;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->Misc.VirtualSize = real_dll_size;
memcpy_s(new_data.my_section[new_data.my_file->NumberOfSections - 1]->Name, 7, "inject", 7);
new_data.my_section[new_data.my_file->NumberOfSections - 1]->NumberOfLinenumbers = my_data.my_section[0]->NumberOfLinenumbers;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->NumberOfRelocations = my_data.my_section[0]->NumberOfRelocations;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->PointerToLinenumbers = my_data.my_section[0]->PointerToLinenumbers;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->PointerToRawData = my_data.my_section[my_data.my_file->NumberOfSections - 1]->PointerToRawData + my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->PointerToRelocations = my_data.my_section[0]->PointerToRelocations;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->SizeOfRawData = size_of_rawdata;
new_data.my_section[new_data.my_file->NumberOfSections - 1]->VirtualAddress = my_data.my_section[my_data.my_file->NumberOfSections - 1]->VirtualAddress + Section_Align(my_data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize, my_data);
cout<NumberOfSections - 1]->VirtualAddress);
DWORD GAP = (DWORD)new_data_ptr - (DWORD)new_data.Stretch_Data;
memcpy_s(new_data_ptr, import_table_size, import_table_ptr, import_table_size);
//修改导入表的入口地址和大小
new_data.my_Data_Directory[1]->VirtualAddress = (DWORD)new_data_ptr-(DWORD)new_data.Stretch_Data;
new_data.my_Data_Directory[1]->Size=0x3c;
//新增导入表
PIMAGE_IMPORT_DESCRIPTOR new_import_ptr2=(PIMAGE_IMPORT_DESCRIPTOR)((DWORD)new_data_ptr+ import_table_size);
new_import_ptr2->FirstThunk = (DWORD)nullptr;
new_import_ptr2->TimeDateStamp = 0;
new_import_ptr2->OriginalFirstThunk = (DWORD)nullptr;
new_import_ptr2->ForwarderChain = 0;
//让FirstThunk指向自己伪造的IAT表，让OriginalFirstThunk指向伪造的INT表
PIMAGE_IMPORT_BY_NAME new_data_import_by_name = (PIMAGE_IMPORT_BY_NAME)((DWORD)new_data_ptr+3*0X14+0X10 );//指向新的空间
PIMAGE_IMPORT_BY_NAME temp_by_name_ptr = new_data_import_by_name;
new_data_import_by_name->Hint = 0;
strcpy_s(new_data_import_by_name->Name, 0x5, "Init");
new_data_import_by_name = (PIMAGE_IMPORT_BY_NAME)((DWORD)new_data_import_by_name + 0x7);
strcpy_s((PCHAR)((DWORD)new_data_import_by_name), 0x9, "Dll2.dll");
new_import_ptr2->Name = (DWORD)new_data_import_by_name-(DWORD)new_data.Stretch_Data;
new_data_import_by_name = (PIMAGE_IMPORT_BY_NAME)((DWORD)new_data_import_by_name - 0x7);
IMAGE_THUNK_DATA32* thunk_ptr = (IMAGE_THUNK_DATA32*)((DWORD)new_data_ptr + 3 * 0x14);
thunk_ptr->u1.AddressOfData = (DWORD)new_data_import_by_name - (DWORD)new_data.Stretch_Data;
new_import_ptr2->FirstThunk = (DWORD)thunk_ptr - (DWORD)new_data.Stretch_Data;
thunk_ptr = (IMAGE_THUNK_DATA32*)((DWORD)thunk_ptr + 0X8);
thunk_ptr->u1.AddressOfData = (DWORD)new_data_import_by_name - (DWORD)new_data.Stretch_Data;
new_import_ptr2->OriginalFirstThunk = (DWORD)thunk_ptr - (DWORD)new_data.Stretch_Data;
//缩小保存
FILE* my_dll;
Shrink_PE(new_data);
Analyze_PE(new_data, 3);
DWORD Size = _msize(new_data.Shrink_Data);
if (fopen_s(&my_dll, "inject", "wb") == 0)
{
fwrite(new_data.Shrink_Data, 1, Size, my_dll);
cout << "写入成功！" << endl;
return;
}
else
{
cout << "写入失败！" << endl;
}
}
VOID PE::Print_BOUND_IMPORT(Data& my_data)
{
for (int i = 0; i < my_data.Import_Directory_num; i++)
{
PIMAGE_IMPORT_DESCRIPTOR temp_import_ptr = my_data.my_Import_Directory[i];
if (temp_import_ptr->TimeDateStamp == 0)
{
cout << "导入表:" << (PCHAR)(temp_import_ptr->Name + (DWORD)my_data.Stretch_Data) << "未进行绑定，需要进行由编译器修复IAT" << endl;
cout << "-----------------------------------------------------------------------------" << endl;
}
else
{
cout << "导入表:" << (PCHAR)(temp_import_ptr->Name+(DWORD)my_data.Stretch_Data) << "已经绑定，不需要由编译器修复IAT" << endl;
cout << "-----------------------------------------------------------------------------" << endl;
}
}
PIMAGE_BOUND_IMPORT_DESCRIPTOR temp_bound_import_ptr = nullptr;
if (my_data.my_Data_Directory[11]->VirtualAddress != 0)
{
temp_bound_import_ptr = (PIMAGE_BOUND_IMPORT_DESCRIPTOR)((DWORD)my_data.my_Data_Directory[11]->VirtualAddress + (DWORD)my_data.Stretch_Data);
}
else
{
cout << "该应用程序没有绑定导入表！" << endl;
return;
}
while (*(DWORD*)temp_bound_import_ptr != 0)
{
if (temp_bound_import_ptr->TimeDateStamp != my_data.my_file->TimeDateStamp)
{
cout << "DLL:"<<(PCHAR)(temp_bound_import_ptr->OffsetModuleName+temp_bound_import_ptr)<<"PE头的时间戳和绑定导出表的时间戳不一致！需要进行IAT重定位" << endl;
}
else
{
DWORD* temp_name_ptr = (DWORD*)((DWORD)my_data.Stretch_Data + (DWORD)temp_bound_import_ptr + (DWORD)temp_bound_import_ptr->OffsetModuleName);
cout << "从该绑定导出表可知，该dll的名字为：" << (PCHAR)temp_name_ptr << "，它依赖的其他dll的个数为" << temp_bound_import_ptr->NumberOfModuleForwarderRefs << endl << "这些dll的名字是" << endl;
for (int i = 0; i < temp_bound_import_ptr->NumberOfModuleForwarderRefs; i++)
{
PIMAGE_BOUND_FORWARDER_REF temp_ref_ptr = (PIMAGE_BOUND_FORWARDER_REF)((DWORD)temp_bound_import_ptr + 0x8) + i * 0x8;
cout << (PCHAR)((DWORD)my_data.Stretch_Data + (DWORD)temp_bound_import_ptr + (DWORD)temp_ref_ptr->OffsetModuleName) << endl;
}
cout << endl;
}
temp_bound_import_ptr = (PIMAGE_BOUND_IMPORT_DESCRIPTOR)((DWORD)temp_bound_import_ptr + 0x8+(DWORD)temp_bound_import_ptr->NumberOfModuleForwarderRefs * 0x8);
}
}
VOID PE::Print_INT(Data& my_data)
{
for (int i = 0; i < my_data.Import_Directory_num; i++)
{
cout << "这是第" << i << "个导入表" << endl;
cout << "此时dll的名字是" << (PCHAR)((DWORD)my_data.my_Import_Directory[i]->Name + (DWORD)my_data.Stretch_Data) << endl;
DWORD* Temp_ptr = (DWORD*)((DWORD)my_data.my_Import_Directory[i]->OriginalFirstThunk + (DWORD)my_data.Stretch_Data);
int count = 0;
while (*Temp_ptr != 0)
{
cout << "第" << ++count << "个INT表的偏移是0x" <Name + (DWORD)my_data.Stretch_Data) << endl;
DWORD* Temp_ptr = (DWORD*)((DWORD)my_data.my_Import_Directory[i]->FirstThunk + (DWORD)my_data.Stretch_Data);
int count = 0;
while (*Temp_ptr != 0)
{
cout << "第" << ++count << "个IAT表的偏移是0x" <Name+(DWORD)my_data.Stretch_Data) << endl;
PIMAGE_THUNK_DATA32 pimage_thunk_data32 = (PIMAGE_THUNK_DATA32)((my_data.my_Import_Directory[0]->OriginalFirstThunk+ (DWORD)my_data.Stretch_Data));
for (int j = 0; j < 100; j++)
{
if ((DWORD)pimage_thunk_data32->u1.AddressOfData >> 31 == 1)
{
cout << "函数对应的序号是" << (pimage_thunk_data32->u1.AddressOfData & 0x7FFF) << endl;
}
else if ((DWORD)pimage_thunk_data32->u1.AddressOfData != 0)
{
cout << "对应的函数名是: " << (PCHAR)(pimage_thunk_data32->u1.AddressOfData+ (DWORD)my_data.Stretch_Data) << endl;
}
else if ((DWORD)pimage_thunk_data32->u1.AddressOfData == 0)
{
break;
}
pimage_thunk_data32++;
}
}
}
VOID PE::Analyze_Import_Table(Data& my_data)
{
PIMAGE_IMPORT_DESCRIPTOR Temp_Ptr = (PIMAGE_IMPORT_DESCRIPTOR)my_data.my_Data_Directory[1];
my_data.my_Import_Directory = new PIMAGE_IMPORT_DESCRIPTOR[100];
Temp_Ptr = (PIMAGE_IMPORT_DESCRIPTOR)(*(DWORD*)Temp_Ptr + (DWORD)my_data.Stretch_Data);
int i = 0;
for ( i = 0; i < 100; i++)
{
if (Temp_Ptr->Characteristics == 0 && Temp_Ptr->Name == 0 && Temp_Ptr->TimeDateStamp == 0)
{
break;
}
my_data.my_Import_Directory[i] = Temp_Ptr;
Temp_Ptr = (PIMAGE_IMPORT_DESCRIPTOR)((DWORD)Temp_Ptr + 5 * sizeof(DWORD));
}
my_data.Import_Directory_num = i;
return;
}
VOID PE::Remove_Relocation(Data& my_data)
{
Data Remove_Relocation_Data;
DWORD Relocation_Data_Size = 0;//重定位表的大小
LPVOID Temp_Ptr = (LPVOID)((DWORD)my_data.my_Data_Directory[5]->VirtualAddress + (DWORD)my_data.Stretch_Data);
PIMAGE_BASE_RELOCATION relocation_ptr = (PIMAGE_BASE_RELOCATION)Temp_Ptr;
while (TRUE)
{
if (relocation_ptr->SizeOfBlock == 0)
{
break;
}
Relocation_Data_Size += relocation_ptr->SizeOfBlock;
relocation_ptr = (PIMAGE_BASE_RELOCATION)((DWORD)relocation_ptr+(DWORD)relocation_ptr->SizeOfBlock);
}
DWORD Real_Size = Relocation_Data_Size;
DWORD SizeOfRawData = File_Align(Relocation_Data_Size, my_data);
Relocation_Data_Size = Section_Align(Relocation_Data_Size, my_data);
Remove_Relocation_Data.Stretch_Data = new char[Relocation_Data_Size+ my_data.my_optional->SizeOfImage];
if (Remove_Relocation_Data.Stretch_Data == nullptr)
{
cout << "Remove_Relocation_Data.Stretch_Data分配空间失败！" << endl;
return;
}
memcpy_s(Remove_Relocation_Data.Stretch_Data, Relocation_Data_Size + my_data.my_optional->SizeOfImage, my_data.Stretch_Data, my_data.my_optional->SizeOfImage);
//现在要将新的节设置好
// 1. 添加一个新的节
// 2. 在新增节后面，填充一个节大小的000
// 3. 修改PE头节的数量
// 4. 修改sizeOfImage的大小
// 5. 再原有的数据的最后，新增一个节的数据（内存对齐的整数倍）
// 6. 修正新增节的属性
// 7. （被坑了好久）记得在对应节填上数据！！！否则会因为数据为空而不能运行
Temp_Ptr = (LPVOID)((DWORD)Remove_Relocation_Data.Stretch_Data + (DWORD)my_data.my_optional->SizeOfImage);
memset(Temp_Ptr, 0, Relocation_Data_Size);
Analyze_PE(Remove_Relocation_Data, 2);
Remove_Relocation_Data.my_file->NumberOfSections += 1;
Analyze_PE(Remove_Relocation_Data, 2);//必须再分析一次，否则Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]会报错
Remove_Relocation_Data.my_optional->SizeOfImage += Relocation_Data_Size;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->Characteristics = my_data.my_section[0]->Characteristics;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->Misc.VirtualSize =Relocation_Data_Size;
memcpy_s(Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->Name, 7, "reloca", 7);
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->NumberOfLinenumbers = my_data.my_section[0]->NumberOfLinenumbers;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->NumberOfRelocations = my_data.my_section[0]->NumberOfRelocations;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->PointerToLinenumbers = my_data.my_section[0]->PointerToLinenumbers;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->PointerToRawData = my_data.my_section[my_data.my_file->NumberOfSections - 1]->PointerToRawData + my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->PointerToRelocations = my_data.my_section[0]->PointerToRelocations;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->SizeOfRawData = SizeOfRawData;
Remove_Relocation_Data.my_section[Remove_Relocation_Data.my_file->NumberOfSections - 1]->VirtualAddress = my_data.my_section[my_data.my_file->NumberOfSections - 1]->VirtualAddress + Section_Align(my_data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize, my_data);
memcpy_s(Temp_Ptr, Real_Size, (LPVOID)((DWORD)my_data.my_Data_Directory[5]->VirtualAddress+ (DWORD)my_data.Stretch_Data), Real_Size);
Remove_Relocation_Data.my_Data_Directory[5]->VirtualAddress = (DWORD)my_data.my_optional->SizeOfImage;
FILE* my_file;
Shrink_PE(Remove_Relocation_Data);
Analyze_PE(Remove_Relocation_Data, 1);
DWORD Size = _msize(Remove_Relocation_Data.Shrink_Data);
if (fopen_s(&my_file, "reloca", "wb") == 0)
{
fwrite(Remove_Relocation_Data.Shrink_Data, 1, Size, my_file);
cout << "写入成功！" << endl;
return;
}
else
{
cout << "写入失败！" << endl;
}
}
VOID PE::Remove_Export_Table(Data& my_data)
{
DWORD Export_Size = my_data.my_Export_Directory->NumberOfFunctions * sizeof(DWORD) + my_data.my_Export_Directory->NumberOfNames * sizeof(WORD) + my_data.my_Export_Directory->NumberOfNames * sizeof(DWORD);
for (int i = 0; i < my_data.my_Export_Directory->NumberOfNames; i++)
{
Export_Size += strlen(my_data.my_Export_Name[i]);
}
Export_Size = Section_Align(Export_Size, my_data);
DWORD Total_Size =Export_Size+ my_data.my_optional->SizeOfImage;
Data Remove_Export_Data;
Remove_Export_Data.Stretch_Data = new char[Total_Size];
if (Remove_Export_Data.Stretch_Data == nullptr)
{
cout << "Remove_Export_Data分配空间失败！！" << endl;
}
memcpy_s(Remove_Export_Data.Stretch_Data, Total_Size, my_data.Stretch_Data, my_data.my_optional->SizeOfImage);
LPVOID Temp_Ptr= (LPVOID)((DWORD)Remove_Export_Data.Stretch_Data + my_data.my_optional->SizeOfImage);//这里是指向新的节
//现在要将新的节设置好
// 1. 添加一个新的节
// 2. 在新增节后面，填充一个节大小的000
// 3. 修改PE头节的数量
// 4. 修改sizeOfImage的大小
// 5. 再原有的数据的最后，新增一个节的数据（内存对齐的整数倍）
// 6. 修正新增节的属性
// 7. （被坑了好久）记得在对应节填上数据！！！否则会因为数据为空而不能运行
memset(Temp_Ptr, 0, Export_Size);
Analyze_PE(Remove_Export_Data, 2);
Remove_Export_Data.my_file->NumberOfSections++;
Remove_Export_Data.my_optional->SizeOfImage += Export_Size;
Analyze_PE(Remove_Export_Data, 2); //可以分析到新的节表
//开始修改节的属性
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->Characteristics = my_data.my_section[0]->Characteristics;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->Misc.VirtualSize = Export_Size;
memcpy_s(Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->Name, 7, "remove",7);
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->NumberOfLinenumbers = my_data.my_section[0]->NumberOfLinenumbers;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->NumberOfRelocations = my_data.my_section[0]->NumberOfRelocations;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->PointerToLinenumbers = my_data.my_section[0]->PointerToLinenumbers;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->PointerToRawData = my_data.my_section[my_data.my_file->NumberOfSections-1]->PointerToRawData+ my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->PointerToRelocations = my_data.my_section[0]->PointerToRelocations;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->SizeOfRawData = Export_Size;
Remove_Export_Data.my_section[Remove_Export_Data.my_file->NumberOfSections - 1]->VirtualAddress = my_data.my_section[my_data.my_file->NumberOfSections - 1]->VirtualAddress + Section_Align(my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData,my_data);
Print_ExportTable(Remove_Export_Data);
//开始移动导出表的信息！
memcpy_s(Temp_Ptr, sizeof(DWORD) * my_data.my_Export_Directory->NumberOfFunctions, (LPVOID)(my_data.my_Export_Directory->AddressOfFunctions+(DWORD)my_data.Stretch_Data), sizeof(DWORD) * my_data.my_Export_Directory->NumberOfFunctions);
Remove_Export_Data.my_Export_Directory->AddressOfFunctions = (DWORD)Temp_Ptr-(DWORD)Remove_Export_Data.Stretch_Data;
Temp_Ptr = (LPVOID)((DWORD)Temp_Ptr + sizeof(DWORD) * my_data.my_Export_Directory->NumberOfFunctions);
memcpy_s(Temp_Ptr, sizeof(WORD) * my_data.my_Export_Directory->NumberOfNames, (LPVOID)(my_data.my_Export_Directory->AddressOfNameOrdinals + (DWORD)my_data.Stretch_Data), sizeof(WORD) * my_data.my_Export_Directory->NumberOfNames);
Remove_Export_Data.my_Export_Directory->AddressOfNameOrdinals = (DWORD)Temp_Ptr - (DWORD)Remove_Export_Data.Stretch_Data;
Temp_Ptr = (LPVOID)((DWORD)Temp_Ptr + sizeof(WORD) * my_data.my_Export_Directory->NumberOfNames);
memcpy_s(Temp_Ptr, sizeof(DWORD) * my_data.my_Export_Directory->AddressOfNames, (LPVOID)(my_data.my_Export_Directory->AddressOfNames + (DWORD)my_data.Stretch_Data), sizeof(DWORD) * my_data.my_Export_Directory->NumberOfNames);
Remove_Export_Data.my_Export_Directory->AddressOfNames = (DWORD)Temp_Ptr - (DWORD)Remove_Export_Data.Stretch_Data;
Temp_Ptr = (LPVOID)((DWORD)Temp_Ptr + sizeof(DWORD) * my_data.my_Export_Directory->AddressOfNames);
FILE* my_file;
Shrink_PE(Remove_Export_Data);
DWORD Size = _msize(Remove_Export_Data.Shrink_Data);
if (fopen_s(&my_file, "remove", "wb") == 0)
{
fwrite(Remove_Export_Data.Shrink_Data, 1, Size, my_file);
cout << "写入成功！" << endl;
return;
}
else
{
cout << "写入失败！" << endl;
}
}
VOID PE::Print_Relocation(Data& my_data)
{
DWORD Temp_ptr = (DWORD)my_data.my_Data_Directory[5]->VirtualAddress+(DWORD)my_data.Stretch_Data;
int count = 1;//这是需要重定位函数的个数
cout << endl << endl;
for (int i = 0; i < 500; i++)
{
cout << endl;
cout << "第" << i+1 << "个块" << endl;
cout << "-----------------------------------------------------" << endl;
my_data.Relocation_Table[i] = (PIMAGE_BASE_RELOCATION)Temp_ptr;
my_data.Relocation_Table[i]->VirtualAddress = *(DWORD*)Temp_ptr;
my_data.Relocation_Table[i]->SizeOfBlock = *(DWORD*)(Temp_ptr + 0x4);
Temp_ptr += 0x8;
for (int index = 0; index < (my_data.Relocation_Table[i]->SizeOfBlock - 0x8) / 2; index++)
{
PWORD Temp_ptr2 = (PWORD)(Temp_ptr + 2*index);
int num = (*Temp_ptr2 >> 12);
if (num == 3)
{
cout << count++ << ": 0x" << hex << my_data.Relocation_Table[i]->VirtualAddress + (*(Temp_ptr2) & 0XFFF)<<" ";
}
}
cout << endl;
count = 1;
Temp_ptr += my_data.Relocation_Table[i]->SizeOfBlock-0x8;
if (*(DWORD*)Temp_ptr == 0&& *(DWORD*)(Temp_ptr+1)==0)
{
break;
}
}
}
VOID PE::GetFunctionAddrByOrdinal(Data& my_data, int ordinal)
{
DWORD AddressOfNames_ptr = (DWORD)((DWORD)my_data.my_Export_Directory->AddressOfNameOrdinals + (DWORD)my_data.Stretch_Data);
for (int i = 0; i < my_data.my_Export_Directory->NumberOfNames; i++)
{
if (*(WORD*)AddressOfNames_ptr + my_data.my_Export_Directory->Base == ordinal)
{
cout << "成功通过函数的序号找到函数地址！" << endl;
cout << "0x" << hex << my_data.Export_AddressOfFunction[i] << endl;
return;
}
AddressOfNames_ptr = (DWORD)((char*)AddressOfNames_ptr + 2);
}
cout << "没有匹配上!" << endl;
}
VOID PE::GetFunctionAddrByName(Data& my_data, char* name)
{
int i = 0;
for (i = 0; i < my_data.my_Export_Directory->NumberOfNames; i++)
{
if (!strcmp(name, my_data.my_Export_Name[i]))
{
cout << "成功通过函数名匹配到函数！" << endl;
break;
}
if (i == my_data.my_Export_Directory->NumberOfNames - 1)
{
cout << "没有匹配到函数名!" << endl;
return ;
}
}
cout << "0x" << hex << my_data.Export_AddressOfFunction[i] << endl;
}
void PE::Print_ExportTable(Data& my_data)
{
PIMAGE_EXPORT_DIRECTORY my_export_directory_ptr = (PIMAGE_EXPORT_DIRECTORY)((DWORD)my_data.my_Data_Directory[0]->VirtualAddress + (DWORD)my_data.Stretch_Data);
my_data.my_Export_Directory = my_export_directory_ptr;
DWORD AddressOfFunctions_ptr = (DWORD)((DWORD)my_export_directory_ptr->AddressOfFunctions + (DWORD)my_data.Stretch_Data);
DWORD AddressOfNames_ptr = (DWORD)((DWORD)my_export_directory_ptr->AddressOfNames + (DWORD)my_data.Stretch_Data);
DWORD AddressOfNameOrdinals_ptr = (DWORD)((DWORD)my_export_directory_ptr->AddressOfNameOrdinals + (DWORD)my_data.Stretch_Data);
cout << "---------------AddressOfFunctions------------------" << endl;
int number = my_export_directory_ptr->NumberOfFunctions;
for (int i = 0; i < number; i++)
{
cout << i << ": " << "0x" << hex << *((DWORD*)AddressOfFunctions_ptr) << endl;
my_data.Export_AddressOfFunction[i] = *((DWORD*)AddressOfFunctions_ptr);
AddressOfFunctions_ptr += 0x4;
while (*((DWORD*)AddressOfFunctions_ptr) == 0)
{
AddressOfFunctions_ptr += 0x4;
}
}
cout << "---------------------Names------------------" << endl;
number = my_export_directory_ptr->NumberOfNames;
for (int i = 0; i < number; i++)
{
strcpy_s(my_data.my_Export_Name[i], (PCHAR)(*(DWORD*)AddressOfNames_ptr + (DWORD)my_data.Stretch_Data));
cout << i << ": " << (PCHAR)(*(DWORD*)AddressOfNames_ptr + (DWORD)my_data.Stretch_Data) << endl;
AddressOfNames_ptr += 0x4;
}
cout << "----------------------NameOrdinals---------------" << endl;
cout << "base: " << my_export_directory_ptr->Base << endl;
for (int i = 0; i < number; i++)
{
cout << i << ": " << *(WORD*)AddressOfNames_ptr << endl;
AddressOfNames_ptr += 0x2;
}
}
DWORD PE::Rva_To_Foa(DWORD Rva_Offset, Data& my_data)
{
int index = 0;
if (Rva_Offset <= my_data.my_optional->SizeOfHeaders)
{
return Rva_Offset;
}
else
{
while (Rva_Offset > my_data.my_section[index]->VirtualAddress)
{
if (index == my_data.my_file->NumberOfSections - 1)
break;
index++;
}
//计算在节的偏移
DWORD Section_Offset = Rva_Offset - my_data.my_section[index]->VirtualAddress;
return my_data.my_section[index]->PointerToRawData + Section_Offset;
}
}
void PE::Analyze_Data_Directory(Data& my_data)
{
my_data.my_Data_Directory = nullptr;
my_data.my_Data_Directory = (PIMAGE_DATA_DIRECTORY*)malloc(16 * sizeof(PIMAGE_DATA_DIRECTORY));
void* Temp_ptr = my_data.my_optional->DataDirectory;
for (int i = 0; i < 16; i++)
{
my_data.my_Data_Directory[i] = (PIMAGE_DATA_DIRECTORY)Temp_ptr;
Temp_ptr = (char*)Temp_ptr + 0x8;
}
}
void PE::Print_IMAGE_DATA_DIRECTORY(Data& my_data)
{
char arr[16][40] = {
"IMAGE_DIRECTORY_ENTRY_EXPORT",
"IMAGE_DIRECTORY_ENTRY_IMPORT",
"IMAGE_DIRECTORY_ENTRY_RESOURCE",
"IMAGE_DIRECTORY_ENTRY_EXCEPTION",
"IMAGE_DIRECTORY_ENTRY_SECURITY",
"IMAGE_DIRECTORY_ENTRY_BASERELOC",
"IMAGE_DIRECTORY_ENTRY_DEBUG",
"IMAGE_DIRECTORY_ENTRY_COPYRIGHT",
"IMAGE_DIRECTORY_ENTRY_GLOBALPTR",
"IMAGE_DIRECTORY_ENTRY_TLS",
"IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG",
"IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT",
"IMAGE_DIRECTORY_ENTRY_IAT",
"IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT",
"IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR",
"RESERVED"
};
for (int i = 0; i < 16; i++)
{
cout << arr[i] << " :" << endl;
cout << "Size: " << hex << my_data.my_Data_Directory[i]->Size << endl;
cout << "Virtual_Address: " << my_data.my_Data_Directory[i]->VirtualAddress << endl;
cout << "------------------------------------------------------------------------" << endl;
}
return;
}
void PE::Combine_Section(char* filename, Data& my_data)
{
int Max = MAX(my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData, my_data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize);
int Size = my_data.my_section[my_data.my_file->NumberOfSections - 1]->VirtualAddress + Section_Align(Max, my_data) - Section_Align(my_data.my_optional->SizeOfHeaders, my_data) + MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize);
Data Comebine_Data;
int temp_size = _msize(my_data.Stretch_Data) + Max;
Comebine_Data.Stretch_Data = (void*)malloc(temp_size);
memset(Comebine_Data.Stretch_Data, 0, Size);
temp_size = _msize(my_data.Stretch_Data);
memcpy_s(Comebine_Data.Stretch_Data, temp_size, my_data.Stretch_Data, temp_size);
Analyze_PE(Comebine_Data, 2);
void* temp_ptr = (char*)Comebine_Data.Stretch_Data + Max + my_data.my_section[my_data.my_file->NumberOfSections - 1]->VirtualAddress;
memcpy_s(temp_ptr, MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data.my_section[0]->VirtualAddress + (char*)my_data.Stretch_Data, MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize));
Comebine_Data.my_optional->SizeOfImage += Section_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data);
Comebine_Data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData += File_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data);
Comebine_Data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize = Section_Align(Comebine_Data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize, my_data) + Section_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data);
FILE* my_file;
if (fopen_s(&my_file, filename, "wb") != 0)
{
cout << "打开文件失败" << endl;
return;
}
Shrink_PE(Comebine_Data);
Analyze_PE(Comebine_Data, 3);
fwrite(Comebine_Data.Shrink_Data, 1, _msize(Comebine_Data.Shrink_Data), my_file);
cout << "写入成功！" << endl;
fclose(my_file);
}
void PE::Expand_Section(Data& my_data, char* filename)
{
this->Stretch_PE(my_data);
unsigned Size = 0;//扩大节后新的文件大小
Size = my_data.my_optional->ImageBase + Section_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data);
Data Expand_Data;
Expand_Data.Stretch_Data = (void*)malloc(Size);
memset(Expand_Data.Stretch_Data, 0, Size);
memcpy_s(Expand_Data.Stretch_Data, _msize(my_data.Stretch_Data), my_data.Stretch_Data, _msize(my_data.Stretch_Data));
Analyze_PE(Expand_Data, 2);
Expand_Data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData = Section_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data) + Section_Align(MAX(my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData, my_data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize), my_data);
Expand_Data.my_section[my_data.my_file->NumberOfSections - 1]->Misc.VirtualSize = Expand_Data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData;
Expand_Data.my_optional->SizeOfImage += Section_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data);
void* Temp_Ptr = (char*)Expand_Data.Stretch_Data + Expand_Data.my_section[Expand_Data.my_file->NumberOfSections - 1]->VirtualAddress + Section_Align(MAX(my_data.my_section[Expand_Data.my_file->NumberOfSections - 1]->SizeOfRawData, my_data.my_section[Expand_Data.my_file->NumberOfSections - 1]->Misc.VirtualSize), my_data);
int temp_size = Section_Align(MAX(my_data.my_section[0]->SizeOfRawData, my_data.my_section[0]->Misc.VirtualSize), my_data);
void* Temp_Ptr2 = (char*)my_data.Stretch_Data + my_data.my_section[0]->VirtualAddress;
memcpy_s(Temp_Ptr, temp_size, Temp_Ptr2, temp_size);
Shrink_PE(Expand_Data);
FILE* my_file;
if (fopen_s(&my_file, filename, "wb") != 0)
{
cout << "打开文件失败！" << endl;
}
else
{
Size = _msize(Expand_Data.Shrink_Data);
fwrite(Expand_Data.Shrink_Data, 1, Size, my_file);
cout << "写入成功！" << endl;
}
fclose(my_file);
}
DWORD PE::Section_Align(DWORD temp, Data& my_data)
{
int i = 0;
while (temp > i * my_data.my_optional->SectionAlignment)
{
i++;
}
return i * my_data.my_optional->SectionAlignment;
}
DWORD PE::File_Align(DWORD temp, Data& my_data)
{
int i = 0;
while (temp > i * my_data.my_optional->FileAlignment)
{
i++;
}
return i * my_data.my_optional->FileAlignment;
}
void PE::New_Section(char* filename, Data& my_data)
{
unsigned int Size; //Size是新文件的大小，是原来的文件大小加上.VirtualSize和SizeOfRawData较大的那个
Size = my_data.my_optional->SizeOfHeaders;
for (int i = 0; i < my_data.my_file->NumberOfSections; i++)
{
Size += my_data.my_section[i]->SizeOfRawData;
}
Size += my_data.my_section[0]->SizeOfRawData;//这是最终新的文件的大小
Data New_Data;
New_Data.Before_Stretch_Data = (void*)malloc(Size * 1);
memset(New_Data.Before_Stretch_Data, 0, Size);
memcpy_s(New_Data.Before_Stretch_Data, Size, my_data.Before_Stretch_Data, Size - my_data.my_section[0]->SizeOfRawData);//将原来的文件复制过来
Analyze_PE(New_Data, 1);//让New_Data的dos,file,optional,section有数据
//复制新的节表
void* Temp_ptr1 = (char*)my_data.Before_Stretch_Data + 0x98 + my_data.my_file->SizeOfOptionalHeader;
void* Temp_ptr2 = (char*)New_Data.Before_Stretch_Data + 0x98 + my_data.my_file->SizeOfOptionalHeader + my_data.my_file->NumberOfSections * 0x28;
memcpy_s(Temp_ptr2, 0x28, Temp_ptr1, 0x28);
//复制新的节
Temp_ptr1 = (char*)my_data.Before_Stretch_Data + my_data.my_optional->SizeOfHeaders;//指向.text段
Temp_ptr2 = (char*)New_Data.Before_Stretch_Data + Size - my_data.my_section[0]->SizeOfRawData;
memcpy_s(Temp_ptr2, my_data.my_section[0]->SizeOfRawData, Temp_ptr1, my_data.my_section[0]->SizeOfRawData);//复制完.text段作为新增节
//接下来要改Header的各项数据
New_Data.my_file->NumberOfSections++;
New_Data.my_optional->SizeOfImage += my_data.my_section[0]->SizeOfRawData;
Analyze_PE(New_Data, 1);
New_Data.my_section[New_Data.my_file->NumberOfSections - 1]->PointerToRawData = New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->PointerToRawData + New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->SizeOfRawData;
int size;
if (New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->Misc.VirtualSize >= New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->SizeOfRawData)
{
size = New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->Misc.VirtualSize;
}
else
{
size = New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->SizeOfRawData;
}
size = size / my_data.my_optional->SectionAlignment + my_data.my_optional->SectionAlignment;
New_Data.my_section[New_Data.my_file->NumberOfSections - 1]->VirtualAddress = New_Data.my_section[New_Data.my_file->NumberOfSections - 2]->VirtualAddress + size;
FILE* my_file;
if (fopen_s(&my_file, filename, "wb") == 0)
{
fwrite(New_Data.Before_Stretch_Data, 1, Size, my_file);
cout << "写入成功！" << endl;
return;
}
else
{
cout << "打开文件失败" << endl;
return;
}
fclose(my_file);
}
void PE::Readfile(char* filename, Data& my_data)
{
unsigned int size;
FILE* datafile;
void* data;
//打开文件
if (fopen_s(&datafile, filename, "rb") != 0)
{
cout << "打开文件失败" << endl;
return;
}
else
{
//获取文件的大小
cout << "打开文件成功！" << endl;
fseek(datafile, 0, SEEK_END);
size = ftell(datafile);
fseek(datafile, 0, SEEK_SET);
if (size == -1L)
{
cout << "文件大小判断失败！" << endl;
return;
}
//申请内存空间把文件内容保存下来
my_data.Before_Stretch_Data = (void*)malloc(size * sizeof(char));
if (fread_s(my_data.Before_Stretch_Data, size, sizeof(char), size, datafile) == 0)
{
cout << "写入数据失败！" << endl;
return;
}
cout << "写入数据成功，成功获取Data!" << endl;
return;
}
}
//分析PE结构
void PE::Analyze_PE(Data& data, int num)
{
if (num == 1)
{
if (data.Before_Stretch_Data != nullptr)
{
DWORD* Temp_ptr = (DWORD*)data.Before_Stretch_Data;
data.my_dos = (PIMAGE_DOS_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)data.Before_Stretch_Data + data.my_dos->e_lfanew);
Temp_ptr++;
data.my_file = (PIMAGE_FILE_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)Temp_ptr + 0x14);
data.my_optional = (PIMAGE_OPTIONAL_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)data.my_optional + data.my_file->SizeOfOptionalHeader);
data.my_section = (PIMAGE_SECTION_HEADER*)malloc(sizeof(PIMAGE_SECTION_HEADER) * data.my_file->NumberOfSections);
memset(data.my_section, 0, sizeof(PIMAGE_SECTION_HEADER) * data.my_file->NumberOfSections);
for (int i = 0; i < data.my_file->NumberOfSections; i++)
{
data.my_section[i] = (PIMAGE_SECTION_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)Temp_ptr + 0x28);
}
Analyze_Data_Directory(data);
return;
}
cout << "分析PE结构失败！" << endl;
}
if (num == 2)
{
if (data.Stretch_Data != nullptr)
{
DWORD* Temp_ptr = (DWORD*)data.Stretch_Data;
data.my_dos = (PIMAGE_DOS_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)data.Stretch_Data + data.my_dos->e_lfanew);
Temp_ptr++;
data.my_file = (PIMAGE_FILE_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)Temp_ptr + 0x14);
data.my_optional = (PIMAGE_OPTIONAL_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)data.my_optional + data.my_file->SizeOfOptionalHeader);
data.my_section = nullptr;
data.my_section = (PIMAGE_SECTION_HEADER*)malloc(sizeof(PIMAGE_SECTION_HEADER) * data.my_file->NumberOfSections);
for (int i = 0; i < data.my_file->NumberOfSections; i++)
{
data.my_section[i] = (PIMAGE_SECTION_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)Temp_ptr + 0x28);
}
Analyze_Data_Directory(data);
PIMAGE_EXPORT_DIRECTORY my_export_directory_ptr = (PIMAGE_EXPORT_DIRECTORY)((DWORD)data.my_Data_Directory[0]->VirtualAddress + (DWORD)data.Stretch_Data);
data.my_Export_Directory = my_export_directory_ptr;
DWORD AddressOfFunctions_ptr = (DWORD)((DWORD)my_export_directory_ptr->AddressOfFunctions + (DWORD)data.Stretch_Data);
DWORD AddressOfNames_ptr = (DWORD)((DWORD)my_export_directory_ptr->AddressOfNames + (DWORD)data.Stretch_Data);
DWORD AddressOfNameOrdinals_ptr = (DWORD)((DWORD)my_export_directory_ptr->AddressOfNameOrdinals + (DWORD)data.Stretch_Data);
Analyze_Import_Table(data);
return;
}
cout << "分析PE结构失败！" << endl;
}
if (num == 3)
{
if (data.Shrink_Data != nullptr)
{
DWORD* Temp_ptr = (DWORD*)data.Shrink_Data;
data.my_dos = (PIMAGE_DOS_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)data.Shrink_Data + data.my_dos->e_lfanew);
Temp_ptr++;
data.my_file = (PIMAGE_FILE_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)Temp_ptr + 0x14);
data.my_optional = (PIMAGE_OPTIONAL_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)data.my_optional + data.my_file->SizeOfOptionalHeader);
data.my_section = (PIMAGE_SECTION_HEADER*)malloc(sizeof(PIMAGE_SECTION_HEADER) * data.my_file->NumberOfSections);
for (int i = 0; i < data.my_file->NumberOfSections; i++)
{
data.my_section[i] = (PIMAGE_SECTION_HEADER)Temp_ptr;
Temp_ptr = (DWORD*)((char*)Temp_ptr + 0x28);
}
Analyze_Data_Directory(data);
return;
}
cout << "分析pe结构失败!" << endl;
}
}
//拉伸PE结构 注意看PIMAGE_XXX_HEADER的定义，它们本就是指向结构体的指针
void PE::Stretch_PE(Data& my_data)
{
unsigned Memory_Size = 0;
Memory_Size = my_data.my_optional->SizeOfImage;
my_data.Stretch_Data = (void*)malloc(sizeof(char) * Memory_Size);
memset(my_data.Stretch_Data, 0, Memory_Size);
void* temp_before_stretch_data_ptr = my_data.Before_Stretch_Data;
int size_of_dos = 0x40;
int size_of_junk = 0x40;
int size_of_file = 0x18;
unsigned Size_Of_Optional = my_data.my_file->SizeOfOptionalHeader;
unsigned Size_Of_Section = 0x28;
unsigned Size_Of_Header = my_data.my_optional->SizeOfHeaders;//还未对齐
memcpy_s(my_data.Stretch_Data, Memory_Size, my_data.Before_Stretch_Data, Size_Of_Header);
void* temp_stretch_data = my_data.Stretch_Data;
//现在计算head头对齐后的大小
int Size = Size_Of_Header % my_data.my_optional->SectionAlignment;
Size_Of_Header = my_data.my_optional->SectionAlignment * Size;
for (int i = 0; i < my_data.my_file->NumberOfSections; i++)
{
temp_stretch_data = (void*)((char*)my_data.Stretch_Data + my_data.my_section[i]->VirtualAddress);
temp_before_stretch_data_ptr = (void*)((char*)my_data.Before_Stretch_Data + my_data.my_section[i]->PointerToRawData);
memcpy_s(temp_stretch_data, my_data.my_section[i]->SizeOfRawData, temp_before_stretch_data_ptr, my_data.my_section[i]->SizeOfRawData);
}
cout << "拉伸成功" << endl;
}
void PE::Shrink_PE(Data& my_data)
{
unsigned int Size = 0;
Size = my_data.my_section[my_data.my_file->NumberOfSections - 1]->PointerToRawData + my_data.my_section[my_data.my_file->NumberOfSections - 1]->SizeOfRawData;
my_data.Shrink_Data = (void*)malloc(Size);
memset(my_data.Shrink_Data, 0, Size);
//从Stretch_Data缩小
//复制Heads
memcpy_s(my_data.Shrink_Data, my_data.my_optional->SizeOfHeaders, my_data.Stretch_Data, my_data.my_optional->SizeOfHeaders);
//复制节
void* temp_shrink_data_ptr = my_data.Shrink_Data;
void* temp_stretch_data_ptr = my_data.Stretch_Data;
for (int i = 0; i < my_data.my_file->NumberOfSections; i++)
{
temp_shrink_data_ptr = (void*)((char*)my_data.Shrink_Data + my_data.my_section[i]->PointerToRawData);
temp_stretch_data_ptr = (void*)((char*)my_data.Stretch_Data + my_data.my_section[i]->VirtualAddress);
memcpy_s(temp_shrink_data_ptr, my_data.my_section[i]->SizeOfRawData, temp_stretch_data_ptr, my_data.my_section[i]->SizeOfRawData);
}
cout << "缩小成功" << endl;
return;
}
int main()
{
char filename[100] = "Afkayas.1.Exe";
PE my_pe;
Data my_data;
my_pe.Readfile(filename, my_data);
my_pe.Analyze_PE(my_data, 1); //char*& Data, PIMAGE_DOS_HEADER& dos, PIMAGE_FILE_HEADER& file, PIMAGE_OPTIONAL_HEADER32& optional, PIMAGE_SECTION_HEADER*& section
my_pe.Stretch_PE(my_data);
my_pe.Analyze_PE(my_data, 2);
my_pe.Shrink_PE(my_data);
my_pe.Analyze_Data_Directory(my_data);
//my_pe.Print_IMAGE_DATA_DIRECTORY(my_data);
//my_pe.Print_ExportTable(my_data);
//cout << "转化的文件偏移是" << hex << my_pe.Rva_To_Foa(0x3100, my_data) << endl;
((void(*)())addr)();//调用
//HMODULE hDll = GetModuleHandleA("Dll1.dll");
//my_pe.GetFunctionAddrByName(my_data, (char*)"Print");
//my_pe.GetFunctionAddrByOrdinal(my_data, 14);
//my_pe.Print_ExportTable(my_data);
//cout << hex << "0x" << my_pe.Rva_To_Foa(0x6000, my_data) << endl;
//my_pe.Print_Relocation(my_data);
//cout << hex << my_pe.Rva_To_Foa(0x1b0e0, my_data) << endl;
my_pe.Remove_Export_Table(my_data);
//my_pe.Remove_Relocation(my_data);
//my_pe.Analyze_Import_Table(my_data);
//my_pe.Print_Import_Table(my_data);
my_pe.Print_INT(my_data);
my_pe.Print_IAT(my_data);
my_pe.Print_BOUND_IMPORT(my_data);
my_pe.Import_Table_Injection(my_data);
return 0;
} 有错请师父不吝指出，万分感谢