一份非常棒的inline hook代码

最新推荐文章于 2019-11-17 15:18:17 发布

xxagri

最新推荐文章于 2019-11-17 15:18:17 发布

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文章标签： hook byte object string include

本文介绍了一种在Windows内核模式下实现Apc钩子的方法，通过修改KiInsertQueueApc函数来实现对Apc的拦截与代理调用。文章详细展示了如何寻找KiInsertQueueApc地址并进行内联钩子操作。

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#include <ntddk.h> #include <ntifs.h>#include <windef.h>ULONG g_KiInsertQueueApc;ULONG g_uCr0; BYTE g_HookCode[5] = { 0xe9, 0, 0, 0, 0 };BYTE g_OrigCode[5] = { 0 }; // Ôº¯&E ...
#include <ntddk.h>
#include <ntifs.h>
#include <windef.h>
ULONG g_KiInsertQueueApc;
ULONG g_uCr0;

BYTE g_HookCode[5] = { 0xe9, 0, 0, 0, 0 };
BYTE g_OrigCode[5] = { 0 }; // Ôº¯ÊýµÄÇ°×Ö½ÚÄÚÈÝ
BYTE jmp_orig_code[7] = { 0xEA, 0, 0, 0, 0, 0x08, 0x00 }; //ÒòÎªÊÇ³¤×ªÒÆ£¬ËùÒÔÓÐ¸ö 0x08

BOOL g_bHooked = FALSE;

VOID
fake_KiInsertQueueApc (
    PKAPC Apc,
    KPRIORITY Increment
    );

VOID
Proxy_KiInsertQueueApc (
    PKAPC Apc,
    KPRIORITY Increment
    );

void WPOFF()
{

    ULONG uAttr;

    _asm
    {
        push eax;
        mov eax, cr0;
        mov uAttr, eax;
        and eax, 0FFFEFFFFh; // CR0 16 BIT = 0
        mov cr0, eax;
        pop eax;
        cli
    };

    g_uCr0 = uAttr; //±£´æÔÓÐµÄ CRO ŒÙÐÔ

}

VOID WPON()
{

    _asm
    {
        sti
        push eax;
        mov eax, g_uCr0; //»ÖÍÔÓÐ CR0 ŒÙÐÔ
        mov cr0, eax;
        pop eax;
    };

}

//
// Í£Ö¹inline hook
//
VOID UnHookKiInsertQueueApc ()
{
KIRQL oldIrql;

    WPOFF();
    oldIrql = KeRaiseIrqlToDpcLevel();

    RtlCopyMemory ( (BYTE*)g_KiInsertQueueApc, g_OrigCode, 5 );

KeLowerIrql(oldIrql);
WPON();

g_bHooked = FALSE;
}

//
// ¿ªÊ¼inline hook -- KiInsertQueueApc
//
VOID HookKiInsertQueueApc ()
{
KIRQL oldIrql;

    if (g_KiInsertQueueApc == 0) {
        DbgPrint("KiInsertQueueApc == NULL/n");
        return;
    }

    //DbgPrint("¿ªÊ¼inline hook -- KiInsertQueueApc/n");
    DbgPrint( "KiInsertQueueApcµÄµØÖ·t0x%08x/n", (ULONG)g_KiInsertQueueApc );
    // ±£´æÔº¯ÊýµÄÇ°×Ö½ÚÄÚÈÝ
    RtlCopyMemory (g_OrigCode, (BYTE*)g_KiInsertQueueApc, 5);//¡ï
    *( (ULONG*)(g_HookCode + 1) ) = (ULONG)fake_KiInsertQueueApc - (ULONG)g_KiInsertQueueApc - 5;//¡ï


    // ½ûÖ¹ÏµÍ³Ð´±£»¤£¬ÌáÉýIRQLµ½DPC
    WPOFF();
    oldIrql = KeRaiseIrqlToDpcLevel();

    RtlCopyMemory ( (BYTE*)g_KiInsertQueueApc, g_HookCode, 5 );
    *( (ULONG*)(jmp_orig_code + 1) ) = (ULONG) ( (BYTE*)g_KiInsertQueueApc + 5 );//¡ï

    RtlCopyMemory ( (BYTE*)Proxy_KiInsertQueueApc, g_OrigCode, 5);//ÐÞ¸ÄProxy_KiInsertQueueApcº¯ÊýÍ·
    RtlCopyMemory ( (BYTE*)Proxy_KiInsertQueueApc + 5, jmp_orig_code, 7);

    // »Ö¸´Ð´±£»¤£¬½µµÍIRQL
    KeLowerIrql(oldIrql);
    WPON();

    g_bHooked = TRUE;


}

//
// Ìø×ªµ½ÎÒÃÇµÄº¯ÊýÀïÃæ½øÐÐÔ¤´¦Àí
//
__declspec (naked)
VOID
fake_KiInsertQueueApc (
    PKAPC Apc,
    KPRIORITY Increment
    )
{

    // È¥µôDbgPrint,²»È»Õâ¸öhook»á²úÉúµÝ¹é
    //DbgPrint("inline hook -- KiInsertQueueApc ³É¹¦/n");

    __asm
    {
               jmp Proxy_KiInsertQueueApc   //¡ïÔÚÕâÒ»ÏµÁÐJMPÖÐ£¬Ã»ÓÐÒ»´¦Ê¹ÓÃCALL£¬¼ò»¯ÁË´úÂë£¬ÔöÇ¿ÁËÎÈ¶¨ÐÔ
    }
}

//
// ´úÀíº¯Êý£¬¸ºÔðÌø×ªµ½Ôº¯ÊýÖÐ¼ÌÐøÖ´ÐÐ
//
__declspec (naked)
VOID
Proxy_KiInsertQueueApc (
    PKAPC Apc,
    KPRIORITY Increment
    )
{

    __asm { // ¹²×Ö½Ú
            _emit 0x90
            _emit 0x90
            _emit 0x90
            _emit 0x90
            _emit 0x90 // Ç°×Ö½ÚÊµÏÖÔº¯ÊýµÄÍ·×Ö½Ú¹¦ÄÜ
            _emit 0x90 // Õâ¸öÌî³äjmp
            _emit 0x90
            _emit 0x90
            _emit 0x90
            _emit 0x90 // Õâ×Ö½Ú±£´æÔº¯Êý+5´¦µÄµØÖ·
            _emit 0x90
            _emit 0x90 // ÒòÎªÊÇ³¤×ªÒÆ,ËùÒÔ±ØÐëÊÇ0x0080
    }
}

ULONG GetFunctionAddr( IN PCWSTR FunctionName)
{
    UNICODE_STRING UniCodeFunctionName;
    RtlInitUnicodeString( &UniCodeFunctionName, FunctionName );
    return (ULONG)MmGetSystemRoutineAddress( &UniCodeFunctionName );

}

//¸ù¾ÝÌØÕ÷Öµ£¬´ÓKeInsertQueueApcËÑË÷ÖÐËÑË÷KiInsertQueueApc
ULONG FindKiInsertQueueApcAddress()
{
char * Addr_KeInsertQueueApc = 0;
int i = 0;
char Findcode[] = { 0xE8, 0xcc, 0x29, 0x00, 0x00 };
ULONG Addr_KiInsertQueueApc = 0;
    Addr_KeInsertQueueApc = (char *) GetFunctionAddr(L"KeInsertQueueApc");
for(i = 0; i < 100; i ++)
{
        if( Addr_KeInsertQueueApc[i] == Findcode[0] &&
      Addr_KeInsertQueueApc[i + 1] == Findcode[1] &&
      Addr_KeInsertQueueApc[i + 2] == Findcode[2] &&
      Addr_KeInsertQueueApc[i + 3] == Findcode[3] &&
      Addr_KeInsertQueueApc[i + 4] == Findcode[4]
      )
    {
      Addr_KiInsertQueueApc = (ULONG)&Addr_KeInsertQueueApc[i] + 0x29cc + 5;
      break;
    }
}
return Addr_KiInsertQueueApc;
}

VOID OnUnload( IN PDRIVER_OBJECT DriverObject )
{
DbgPrint("My Driver Unloaded!");
UnHookKiInsertQueueApc();
}

NTSTATUS DriverEntry( IN PDRIVER_OBJECT theDriverObject, IN PUNICODE_STRING theRegistryPath )
{
DbgPrint("My Driver Loaded!");
theDriverObject->DriverUnload = OnUnload;

g_KiInsertQueueApc = FindKiInsertQueueApcAddress();
HookKiInsertQueueApc();

return STATUS_SUCCESS;
}