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            原文地址:http://drops.wooyun.org/tips/4854

            0x00 簡介


            記得2008年看保護模式的教程時,痛苦與那些眾多的位信息等復雜的結構。 后來入這行,干了幾年的驅動。 這是才對這些CPU基本的知識有點了解。

            IDT,中斷描述符表,這個基本的東西,豈能不會。 IDT HOOK的東西已經很多了,不過這里不是搞這個的(因為64位windows上是不建議的,除非...),而是檢測IDT HOOK,向處理器虛擬化進軍的。

            好了,閑話不說,進入正題,之前之所以沒有搞是因為沒有找到權威的,可行的資料,具體的說是結構。

            0x01 start


            這里不說保護模式的一些基本原理,假定看官已經知道了。

            下面正式進入主題: 如何開始呢? IDT是由IDTR指定的

            這里先用WINDBG手工分析下,然后編程實現。

            #!bash
            0: kd> r idtr 
            idtr=8003f400
            

            這個IDT有多大呢?

            #!bash
            0: kd> r idtl
            idtl=000007ff
            

            其實大小就是這個數加一。

            地址找到了,大小找到了,關鍵是這個是啥結構,IDT長啥樣呢?

            #!bash
            0: kd> dt _KIDTENTRY
            ntdll!_KIDTENTRY
               +0x000 Offset           : Uint2B
               +0x002 Selector         : Uint2B
               +0x004 Access           : Uint2B
               +0x006 ExtendedOffset   : Uint2B
            

            就這樣。

            就是這個結構的數組。

            下面看看第一個成員。

            #!bash
            0: kd> dt _KIDTENTRY 8003f400
            ntdll!_KIDTENTRY
               +0x000 Offset           : 0x3360
               +0x002 Selector         : 8
               +0x004 Access           : 0x8e00
               +0x006 ExtendedOffset   : 0x8054
            

            這個結構的具體的含義,請看Intel的手冊或者相關的資料。

            經過計算得出地址是:0x80543360

            驗證的方式之一:

            #!bash
            0: kd> u 0x80543360
            nt!KiTrap00:
            80543360 6a00            push    0
            80543362 66c74424020000  mov     word ptr [esp+2],0
            80543369 55              push    ebp
            8054336a 53              push    ebx
            8054336b 56              push    esi
            8054336c 57              push    edi
            8054336d 0fa0            push    fs
            8054336f bb30000000      mov     ebx,30h
            

            看到了吧!顯示的是正確的。

            另一個辦法是:

            #!bash
            0: kd> !idt -a 
            
            Dumping IDT: 8003f400
            
            8cde863500000000:   80543360 nt!KiTrap00
            8cde863500000001:   805434dc nt!KiTrap01
            8cde863500000002:   Task Selector = 0x0058
            8cde863500000003:   805438f0 nt!KiTrap03
            8cde863500000004:   80543a70 nt!KiTrap04
            8cde863500000005:   80543bd0 nt!KiTrap05
            8cde863500000006:   80543d44 nt!KiTrap06
            8cde863500000007:   805443bc nt!KiTrap07
            8cde863500000008:   Task Selector = 0x0050
            8cde863500000009:   805447c0 nt!KiTrap09
            8cde86350000000a:   805448e0 nt!KiTrap0A
            8cde86350000000b:   80544a20 nt!KiTrap0B
            8cde86350000000c:   80544c80 nt!KiTrap0C
            8cde86350000000d:   80544f6c nt!KiTrap0D
            8cde86350000000e:   8054568c nt!KiTrap0E
            8cde86350000000f:   8054590c nt!KiTrap0F
            8cde863500000010:   80545a2c nt!KiTrap10
            8cde863500000011:   80545b68 nt!KiTrap11
            8cde863500000012:   Task Selector = 0x00A0
            8cde863500000013:   80545cd0 nt!KiTrap13
            8cde863500000014:   8054590c nt!KiTrap0F
            8cde863500000015:   8054590c nt!KiTrap0F
            8cde863500000016:   8054590c nt!KiTrap0F
            8cde863500000017:   8054590c nt!KiTrap0F
            8cde863500000018:   8054590c nt!KiTrap0F
            8cde863500000019:   8054590c nt!KiTrap0F
            8cde86350000001a:   8054590c nt!KiTrap0F
            8cde86350000001b:   8054590c nt!KiTrap0F
            8cde86350000001c:   8054590c nt!KiTrap0F
            8cde86350000001d:   8054590c nt!KiTrap0F
            8cde86350000001e:   8054590c nt!KiTrap0F
            8cde86350000001f:   806e810c hal!HalpApicSpuriousService
            8cde863500000020:   00000000
            8cde863500000021:   00000000
            8cde863500000022:   00000000
            8cde863500000023:   00000000
            8cde863500000024:   00000000
            8cde863500000025:   00000000
            8cde863500000026:   00000000
            8cde863500000027:   00000000
            8cde863500000028:   00000000
            8cde863500000029:   00000000
            8cde86350000002a:   80542b8e nt!KiGetTickCount
            8cde86350000002b:   80542c90 nt!KiCallbackReturn
            8cde86350000002c:   80542e40 nt!KiSetLowWaitHighThread
            8cde86350000002d:   805437cc nt!KiDebugService
            8cde86350000002e:   80542611 nt!KiSystemService
            8cde86350000002f:   8054590c nt!KiTrap0F
            8cde863500000030:   80541cd0 nt!KiStartUnexpectedRange
            8cde863500000031:   80541cda nt!KiUnexpectedInterrupt1
            8cde863500000032:   80541ce4 nt!KiUnexpectedInterrupt2
            8cde863500000033:   80541cee nt!KiUnexpectedInterrupt3
            8cde863500000034:   80541cf8 nt!KiUnexpectedInterrupt4
            8cde863500000035:   80541d02 nt!KiUnexpectedInterrupt5
            8cde863500000036:   80541d0c nt!KiUnexpectedInterrupt6
            8cde863500000037:   806e7864 hal!PicSpuriousService37
            8cde863500000038:   80541d20 nt!KiUnexpectedInterrupt8
            8cde863500000039:   80541d2a nt!KiUnexpectedInterrupt9
            8cde86350000003a:   80541d34 nt!KiUnexpectedInterrupt10
            8cde86350000003b:   80541d3e nt!KiUnexpectedInterrupt11
            8cde86350000003c:   80541d48 nt!KiUnexpectedInterrupt12
            8cde86350000003d:   806e8e2c hal!HalpApcInterrupt
            8cde86350000003e:   80541d5c nt!KiUnexpectedInterrupt14
            8cde86350000003f:   80541d66 nt!KiUnexpectedInterrupt15
            8cde863500000040:   80541d70 nt!KiUnexpectedInterrupt16
            8cde863500000041:   806e8c88 hal!HalpDispatchInterrupt
            8cde863500000042:   80541d84 nt!KiUnexpectedInterrupt18
            8cde863500000043:   80541d8e nt!KiUnexpectedInterrupt19
            8cde863500000044:   80541d98 nt!KiUnexpectedInterrupt20
            8cde863500000045:   80541da2 nt!KiUnexpectedInterrupt21
            8cde863500000046:   80541dac nt!KiUnexpectedInterrupt22
            8cde863500000047:   80541db6 nt!KiUnexpectedInterrupt23
            8cde863500000048:   80541dc0 nt!KiUnexpectedInterrupt24
            8cde863500000049:   80541dca nt!KiUnexpectedInterrupt25
            8cde86350000004a:   80541dd4 nt!KiUnexpectedInterrupt26
            8cde86350000004b:   80541dde nt!KiUnexpectedInterrupt27
            8cde86350000004c:   80541de8 nt!KiUnexpectedInterrupt28
            8cde86350000004d:   80541df2 nt!KiUnexpectedInterrupt29
            8cde86350000004e:   80541dfc nt!KiUnexpectedInterrupt30
            8cde86350000004f:   80541e06 nt!KiUnexpectedInterrupt31
            8cde863500000050:   806e793c hal!HalpApicRebootService
            8cde863500000051:   80541e1a nt!KiUnexpectedInterrupt33
            8cde863500000052:   80541e24 nt!KiUnexpectedInterrupt34
            8cde863500000053:   80541e2e nt!KiUnexpectedInterrupt35
            8cde863500000054:   80541e38 nt!KiUnexpectedInterrupt36
            8cde863500000055:   80541e42 nt!KiUnexpectedInterrupt37
            8cde863500000056:   80541e4c nt!KiUnexpectedInterrupt38
            8cde863500000057:   80541e56 nt!KiUnexpectedInterrupt39
            8cde863500000058:   80541e60 nt!KiUnexpectedInterrupt40
            8cde863500000059:   80541e6a nt!KiUnexpectedInterrupt41
            8cde86350000005a:   80541e74 nt!KiUnexpectedInterrupt42
            8cde86350000005b:   80541e7e nt!KiUnexpectedInterrupt43
            8cde86350000005c:   80541e88 nt!KiUnexpectedInterrupt44
            8cde86350000005d:   80541e92 nt!KiUnexpectedInterrupt45
            8cde86350000005e:   80541e9c nt!KiUnexpectedInterrupt46
            8cde86350000005f:   80541ea6 nt!KiUnexpectedInterrupt47
            8cde863500000060:   80541eb0 nt!KiUnexpectedInterrupt48
            8cde863500000061:   80541eba nt!KiUnexpectedInterrupt49
            8cde863500000062:   81c2f044 atapi!IdePortInterrupt (KINTERRUPT 81c2f008)
            8cde863500000063:   81c0a624 portcls!CKsShellRequestor::`vector deleting destructor'+0x26 (KINTERRUPT 81c0a5e8)
            8cde863500000064:   80541ed8 nt!KiUnexpectedInterrupt52
            8cde863500000065:   80541ee2 nt!KiUnexpectedInterrupt53
            8cde863500000066:   80541eec nt!KiUnexpectedInterrupt54
            8cde863500000067:   80541ef6 nt!KiUnexpectedInterrupt55
            8cde863500000068:   80541f00 nt!KiUnexpectedInterrupt56
            8cde863500000069:   80541f0a nt!KiUnexpectedInterrupt57
            8cde86350000006a:   80541f14 nt!KiUnexpectedInterrupt58
            8cde86350000006b:   80541f1e nt!KiUnexpectedInterrupt59
            8cde86350000006c:   80541f28 nt!KiUnexpectedInterrupt60
            8cde86350000006d:   80541f32 nt!KiUnexpectedInterrupt61
            8cde86350000006e:   80541f3c nt!KiUnexpectedInterrupt62
            8cde86350000006f:   80541f46 nt!KiUnexpectedInterrupt63
            8cde863500000070:   80541f50 nt!KiUnexpectedInterrupt64
            8cde863500000071:   80541f5a nt!KiUnexpectedInterrupt65
            8cde863500000072:   80541f64 nt!KiUnexpectedInterrupt66
            8cde863500000073:   81efabec SCSIPORT!ScsiPortInterrupt (KINTERRUPT 81efabb0)
            8cde863500000074:   80541f78 nt!KiUnexpectedInterrupt68
            8cde863500000075:   80541f82 nt!KiUnexpectedInterrupt69
            8cde863500000076:   80541f8c nt!KiUnexpectedInterrupt70
            8cde863500000077:   80541f96 nt!KiUnexpectedInterrupt71
            8cde863500000078:   80541fa0 nt!KiUnexpectedInterrupt72
            8cde863500000079:   80541faa nt!KiUnexpectedInterrupt73
            8cde86350000007a:   80541fb4 nt!KiUnexpectedInterrupt74
            8cde86350000007b:   80541fbe nt!KiUnexpectedInterrupt75
            8cde86350000007c:   80541fc8 nt!KiUnexpectedInterrupt76
            8cde86350000007d:   80541fd2 nt!KiUnexpectedInterrupt77
            8cde86350000007e:   80541fdc nt!KiUnexpectedInterrupt78
            8cde86350000007f:   80541fe6 nt!KiUnexpectedInterrupt79
            8cde863500000080:   80541ff0 nt!KiUnexpectedInterrupt80
            8cde863500000081:   80541ffa nt!KiUnexpectedInterrupt81
            8cde863500000082:   820c1bec atapi!IdePortInterrupt (KINTERRUPT 820c1bb0)
            8cde863500000083:   81c1d044 *** ERROR: Symbol file could not be found.  Defaulted to export symbols for vmci.sys - 
            vmci!DllUnload+0x7d6 (KINTERRUPT 81c1d008)
            8cde863500000084:   80542018 nt!KiUnexpectedInterrupt84
            8cde863500000085:   80542022 nt!KiUnexpectedInterrupt85
            8cde863500000086:   8054202c nt!KiUnexpectedInterrupt86
            8cde863500000087:   80542036 nt!KiUnexpectedInterrupt87
            8cde863500000088:   80542040 nt!KiUnexpectedInterrupt88
            8cde863500000089:   8054204a nt!KiUnexpectedInterrupt89
            8cde86350000008a:   80542054 nt!KiUnexpectedInterrupt90
            8cde86350000008b:   8054205e nt!KiUnexpectedInterrupt91
            8cde86350000008c:   80542068 nt!KiUnexpectedInterrupt92
            8cde86350000008d:   80542072 nt!KiUnexpectedInterrupt93
            8cde86350000008e:   8054207c nt!KiUnexpectedInterrupt94
            8cde86350000008f:   80542086 nt!KiUnexpectedInterrupt95
            8cde863500000090:   80542090 nt!KiUnexpectedInterrupt96
            8cde863500000091:   8054209a nt!KiUnexpectedInterrupt97
            8cde863500000092:   805420a4 nt!KiUnexpectedInterrupt98
            8cde863500000093:   82059bec i8042prt!I8042KeyboardInterruptService (KINTERRUPT 82059bb0)
            8cde863500000094:   805420b8 nt!KiUnexpectedInterrupt100
            8cde863500000095:   805420c2 nt!KiUnexpectedInterrupt101
            8cde863500000096:   805420cc nt!KiUnexpectedInterrupt102
            8cde863500000097:   805420d6 nt!KiUnexpectedInterrupt103
            8cde863500000098:   805420e0 nt!KiUnexpectedInterrupt104
            8cde863500000099:   805420ea nt!KiUnexpectedInterrupt105
            8cde86350000009a:   805420f4 nt!KiUnexpectedInterrupt106
            8cde86350000009b:   805420fe nt!KiUnexpectedInterrupt107
            8cde86350000009c:   80542108 nt!KiUnexpectedInterrupt108
            8cde86350000009d:   80542112 nt!KiUnexpectedInterrupt109
            8cde86350000009e:   8054211c nt!KiUnexpectedInterrupt110
            8cde86350000009f:   80542126 nt!KiUnexpectedInterrupt111
            8cde8635000000a0:   80542130 nt!KiUnexpectedInterrupt112
            8cde8635000000a1:   8054213a nt!KiUnexpectedInterrupt113
            8cde8635000000a2:   80542144 nt!KiUnexpectedInterrupt114
            8cde8635000000a3:   82002044 i8042prt!I8042MouseInterruptService (KINTERRUPT 82002008)
            8cde8635000000a4:   80542158 nt!KiUnexpectedInterrupt116
            8cde8635000000a5:   80542162 nt!KiUnexpectedInterrupt117
            8cde8635000000a6:   8054216c nt!KiUnexpectedInterrupt118
            8cde8635000000a7:   80542176 nt!KiUnexpectedInterrupt119
            8cde8635000000a8:   80542180 nt!KiUnexpectedInterrupt120
            8cde8635000000a9:   8054218a nt!KiUnexpectedInterrupt121
            8cde8635000000aa:   80542194 nt!KiUnexpectedInterrupt122
            8cde8635000000ab:   8054219e nt!KiUnexpectedInterrupt123
            8cde8635000000ac:   805421a8 nt!KiUnexpectedInterrupt124
            8cde8635000000ad:   805421b2 nt!KiUnexpectedInterrupt125
            8cde8635000000ae:   805421bc nt!KiUnexpectedInterrupt126
            8cde8635000000af:   805421c6 nt!KiUnexpectedInterrupt127
            8cde8635000000b0:   805421d0 nt!KiUnexpectedInterrupt128
            8cde8635000000b1:   820ca044 ACPI!ACPIInterruptServiceRoutine (KINTERRUPT 820ca008)
            8cde8635000000b2:   805421e4 nt!KiUnexpectedInterrupt130
            8cde8635000000b3:   805421ee nt!KiUnexpectedInterrupt131
            8cde8635000000b4:   81f43a94 NDIS!ndisMIsr (KINTERRUPT 81f43a58)
            8cde8635000000b5:   80542202 nt!KiUnexpectedInterrupt133
            8cde8635000000b6:   8054220c nt!KiUnexpectedInterrupt134
            8cde8635000000b7:   80542216 nt!KiUnexpectedInterrupt135
            8cde8635000000b8:   80542220 nt!KiUnexpectedInterrupt136
            8cde8635000000b9:   8054222a nt!KiUnexpectedInterrupt137
            8cde8635000000ba:   80542234 nt!KiUnexpectedInterrupt138
            8cde8635000000bb:   8054223e nt!KiUnexpectedInterrupt139
            8cde8635000000bc:   80542248 nt!KiUnexpectedInterrupt140
            8cde8635000000bd:   80542252 nt!KiUnexpectedInterrupt141
            8cde8635000000be:   8054225c nt!KiUnexpectedInterrupt142
            8cde8635000000bf:   80542266 nt!KiUnexpectedInterrupt143
            8cde8635000000c0:   80542270 nt!KiUnexpectedInterrupt144
            8cde8635000000c1:   806e7ac0 hal!HalpBroadcastCallService
            8cde8635000000c2:   80542284 nt!KiUnexpectedInterrupt146
            8cde8635000000c3:   8054228e nt!KiUnexpectedInterrupt147
            8cde8635000000c4:   80542298 nt!KiUnexpectedInterrupt148
            8cde8635000000c5:   805422a2 nt!KiUnexpectedInterrupt149
            8cde8635000000c6:   805422ac nt!KiUnexpectedInterrupt150
            8cde8635000000c7:   805422b6 nt!KiUnexpectedInterrupt151
            8cde8635000000c8:   805422c0 nt!KiUnexpectedInterrupt152
            8cde8635000000c9:   805422ca nt!KiUnexpectedInterrupt153
            8cde8635000000ca:   805422d4 nt!KiUnexpectedInterrupt154
            8cde8635000000cb:   805422de nt!KiUnexpectedInterrupt155
            8cde8635000000cc:   805422e8 nt!KiUnexpectedInterrupt156
            8cde8635000000cd:   805422f2 nt!KiUnexpectedInterrupt157
            8cde8635000000ce:   805422fc nt!KiUnexpectedInterrupt158
            8cde8635000000cf:   80542306 nt!KiUnexpectedInterrupt159
            8cde8635000000d0:   80542310 nt!KiUnexpectedInterrupt160
            8cde8635000000d1:   806e6e54 hal!HalpClockInterrupt
            8cde8635000000d2:   80542324 nt!KiUnexpectedInterrupt162
            8cde8635000000d3:   8054232e nt!KiUnexpectedInterrupt163
            8cde8635000000d4:   80542338 nt!KiUnexpectedInterrupt164
            8cde8635000000d5:   80542342 nt!KiUnexpectedInterrupt165
            8cde8635000000d6:   8054234c nt!KiUnexpectedInterrupt166
            8cde8635000000d7:   80542356 nt!KiUnexpectedInterrupt167
            8cde8635000000d8:   80542360 nt!KiUnexpectedInterrupt168
            8cde8635000000d9:   8054236a nt!KiUnexpectedInterrupt169
            8cde8635000000da:   80542374 nt!KiUnexpectedInterrupt170
            8cde8635000000db:   8054237e nt!KiUnexpectedInterrupt171
            8cde8635000000dc:   80542388 nt!KiUnexpectedInterrupt172
            8cde8635000000dd:   80542392 nt!KiUnexpectedInterrupt173
            8cde8635000000de:   8054239c nt!KiUnexpectedInterrupt174
            8cde8635000000df:   805423a6 nt!KiUnexpectedInterrupt175
            8cde8635000000e0:   805423b0 nt!KiUnexpectedInterrupt176
            8cde8635000000e1:   806e8048 hal!HalpIpiHandler
            8cde8635000000e2:   805423c4 nt!KiUnexpectedInterrupt178
            8cde8635000000e3:   806e7dac hal!HalpLocalApicErrorService
            8cde8635000000e4:   805423d8 nt!KiUnexpectedInterrupt180
            8cde8635000000e5:   805423e2 nt!KiUnexpectedInterrupt181
            8cde8635000000e6:   805423ec nt!KiUnexpectedInterrupt182
            8cde8635000000e7:   805423f6 nt!KiUnexpectedInterrupt183
            8cde8635000000e8:   80542400 nt!KiUnexpectedInterrupt184
            8cde8635000000e9:   8054240a nt!KiUnexpectedInterrupt185
            8cde8635000000ea:   80542414 nt!KiUnexpectedInterrupt186
            8cde8635000000eb:   8054241e nt!KiUnexpectedInterrupt187
            8cde8635000000ec:   80542428 nt!KiUnexpectedInterrupt188
            8cde8635000000ed:   80542432 nt!KiUnexpectedInterrupt189
            8cde8635000000ee:   80542439 nt!KiUnexpectedInterrupt190
            8cde8635000000ef:   80542440 nt!KiUnexpectedInterrupt191
            8cde8635000000f0:   80542447 nt!KiUnexpectedInterrupt192
            8cde8635000000f1:   8054244e nt!KiUnexpectedInterrupt193
            8cde8635000000f2:   80542455 nt!KiUnexpectedInterrupt194
            8cde8635000000f3:   8054245c nt!KiUnexpectedInterrupt195
            8cde8635000000f4:   80542463 nt!KiUnexpectedInterrupt196
            8cde8635000000f5:   8054246a nt!KiUnexpectedInterrupt197
            8cde8635000000f6:   80542471 nt!KiUnexpectedInterrupt198
            8cde8635000000f7:   80542478 nt!KiUnexpectedInterrupt199
            8cde8635000000f8:   8054247f nt!KiUnexpectedInterrupt200
            8cde8635000000f9:   80542486 nt!KiUnexpectedInterrupt201
            8cde8635000000fa:   8054248d nt!KiUnexpectedInterrupt202
            8cde8635000000fb:   80542494 nt!KiUnexpectedInterrupt203
            8cde8635000000fc:   8054249b nt!KiUnexpectedInterrupt204
            8cde8635000000fd:   806e85a8 hal!HalpProfileInterrupt
            8cde8635000000fe:   806e8748 hal!HalpPerfInterrupt
            8cde8635000000ff:   805424b0 nt!KiUnexpectedInterrupt207
            

            注意:要帶參數,不然不顯示NTOS*.EXE中的中斷。

            至此:X86上的一個CPU的IDT樣例分析完畢。

            至于剩余CPU的,X64的分析類似,具體的分析可以看附件。

            也可以作為看官的作業題。作業完成算是看懂了本文。

            下面簡單說一下編碼的注意事項:

            1.首先是多CPU。


            早期的Windows版本可以用內核導出的變量KeNumberProcessors。

            高版本的可以搜索KeGet*或者KeQuery系列的函數。

            2.附加/貼近CPU,具體的說是線程,可以參考:

            KeSetSystemAffinityThread

            KeRevertToUserAffinityThread

            3.因為是底層的操作,大多是用匯編實現的,還好微軟提供了:

            __sidt 參見:http://msdn.microsoft.com/zh-cn/library/aa983358%28v=vs.120%29.aspx

            另一個思路是用:KeGetPcr()。

            這個在X86上可以自己實現,其實也是用封裝的匯編指令。

            X64上這個可以直接調用。

            4.如果要HOOK,看看如下兩個鏈接:

            _disable https://msdn.microsoft.com/zh-cn/library/y14401ab(v=vs.90).aspx

            _enable https://msdn.microsoft.com/zh-cn/library/ad820yz3(v=vs.90).aspx

            5.具體的編碼和處理就看你的了。

            再補充點: 32位下IDTR指向的位置可以用結構:

            #!c
            // Special Registers for i386
            typedef struct _X86_DESCRIPTOR {
                USHORT  Pad;
                USHORT  Limit;
                ULONG   Base;
            } X86_DESCRIPTOR, *PX86_DESCRIPTOR;
            
            kd> dt _DESCRIPTOR 注意:64位下沒有這個結構。
            nt!_DESCRIPTOR
               +0x000 Pad              : Uint2B
               +0x002 Limit            : Uint2B
               +0x004 Base             : Uint4B
            

            64位下IDTR指向的位置可以用結構:

            #!c
            // Special Registers for AMD64.
            typedef struct _AMD64_DESCRIPTOR {
                USHORT  Pad[3];
                USHORT  Limit;
                ULONG64 Base;
            } AMD64_DESCRIPTOR, *PAMD64_DESCRIPTOR;
            
            1: kd> dt _AMD64_DESCRIPTOR 注意:運行環境是64位系統。
            test!_AMD64_DESCRIPTOR
               +0x000 Pad              : [3] Uint2B
               +0x006 Limit            : Uint2B
               +0x008 Base             : Uint8B
            

            不說了:看垃圾代碼吧! 注釋以上的結構摘自:WRK。 書于匆忙之后,如有不足請指正。


            #!c
            /*
            功能:顯示每個CPU的IDT信息。
            注釋:一下結構摘自WRK。
            
            參考:
            http://uninformed.org/index.cgi?v=8&a=2&p=8
            http://resources.infosecinstitute.com/hooking-idt/
            
            made by correy.
            made at 2015.01.05.
            */
            
            #include <ntifs.h>
            #include <windef.h>
            
            typedef
            VOID
            (*PKINTERRUPT_ROUTINE) (
                VOID
                );
            
            struct _KINTERRUPT;
            
            // begin_ntddk begin_wdm begin_ntifs begin_ntosp
            
            typedef
            BOOLEAN
            (*PKSERVICE_ROUTINE) (
                IN struct _KINTERRUPT *Interrupt,
                IN PVOID ServiceContext
                );
            
            #define NORMAL_DISPATCH_LENGTH 106                  // ntddk wdm
            #define DISPATCH_LENGTH NORMAL_DISPATCH_LENGTH      // ntddk wdm
            
            // Interrupt object
            typedef struct _KINTERRUPT {
                CSHORT Type;
                CSHORT Size;
                LIST_ENTRY InterruptListEntry;
                PKSERVICE_ROUTINE ServiceRoutine;
                PVOID ServiceContext;
                KSPIN_LOCK SpinLock;
                ULONG TickCount;
                PKSPIN_LOCK ActualLock;
                PKINTERRUPT_ROUTINE DispatchAddress;
                ULONG Vector;
                KIRQL Irql;
                KIRQL SynchronizeIrql;
                BOOLEAN FloatingSave;
                BOOLEAN Connected;
                CCHAR Number;
                BOOLEAN ShareVector;
                KINTERRUPT_MODE Mode;
                ULONG ServiceCount;
                ULONG DispatchCount;
            
            #if defined(_AMD64_)
                PKTRAP_FRAME TrapFrame;
                PVOID Reserved;
                ULONG DispatchCode[DISPATCH_LENGTH];
            #else
                ULONG DispatchCode[DISPATCH_LENGTH];
            #endif
            
            } KINTERRUPT;
            
            
            
            #if defined(_WIN64)
            
            // Special Registers for AMD64.
            typedef struct _AMD64_DESCRIPTOR {
                USHORT  Pad[3];
                USHORT  Limit;
                ULONG64 Base;
            } AMD64_DESCRIPTOR, *PAMD64_DESCRIPTOR;
            
            // Define Interrupt Descriptor Table (IDT) entry structure and constants.
            typedef union _KIDTENTRY64 {
               struct {
                   USHORT OffsetLow;
                   USHORT Selector;
                   USHORT IstIndex : 3;
                   USHORT Reserved0 : 5;
                   USHORT Type : 5;
                   USHORT Dpl : 2;
                   USHORT Present : 1;
                   USHORT OffsetMiddle;
                   ULONG OffsetHigh;
                   ULONG Reserved1;
               };
            
               ULONG64 Alignment;
            } KIDTENTRY64, *PKIDTENTRY64;
            
            typedef union _KIDT_HANDLER_ADDRESS {
                struct {
                    USHORT OffsetLow;
                    USHORT OffsetMiddle;
                    ULONG OffsetHigh;
                };
            
                ULONG64 Address;
            } KIDT_HANDLER_ADDRESS, *PKIDT_HANDLER_ADDRESS;
            
            #define KiGetIdtFromVector(Vector)                  \
                &KeGetPcr()->IdtBase[HalVectorToIDTEntry(Vector)]
            
            #define KeGetIdtHandlerAddress(Vector,Addr) {       \
                KIDT_HANDLER_ADDRESS Handler;                   \
                PKIDTENTRY64 Idt;                               \
                \
                Idt = KiGetIdtFromVector(Vector);               \
                Handler.OffsetLow = Idt->OffsetLow;             \
                Handler.OffsetMiddle = Idt->OffsetMiddle;       \
                Handler.OffsetHigh = Idt->OffsetHigh;           \
                *(Addr) = (PVOID)(Handler.Address);             \
            }
            
            #define KeSetIdtHandlerAddress(Vector,Addr) {      \
                KIDT_HANDLER_ADDRESS Handler;                  \
                PKIDTENTRY64 Idt;                              \
                \
                Idt = KiGetIdtFromVector(Vector);              \
                Handler.Address = (ULONG64)(Addr);             \
                Idt->OffsetLow = Handler.OffsetLow;            \
                Idt->OffsetMiddle = Handler.OffsetMiddle;      \
                Idt->OffsetHigh = Handler.OffsetHigh;          \
            }
            
            #else 
            
            // Special Registers for i386
            typedef struct _X86_DESCRIPTOR {
                USHORT  Pad;
                USHORT  Limit;
                ULONG   Base;
            } X86_DESCRIPTOR, *PX86_DESCRIPTOR;
            
            
            // Entry of Interrupt Descriptor Table (IDTENTRY)
            typedef struct _KIDTENTRY {
               USHORT Offset;
               USHORT Selector;
               USHORT Access;
               USHORT ExtendedOffset;
            } KIDTENTRY;
            typedef KIDTENTRY *PKIDTENTRY;
            
            // begin_nthal
            //
            // Macro to set address of a trap/interrupt handler to IDT
            //
            #define KiSetHandlerAddressToIDT(Vector, HandlerAddress) {\
                UCHAR IDTEntry = HalVectorToIDTEntry(Vector); \
                ULONG Ha = (ULONG)HandlerAddress; \
                KeGetPcr()->IDT[IDTEntry].ExtendedOffset = HIGHWORD(Ha); \
                KeGetPcr()->IDT[IDTEntry].Offset = LOWWORD(Ha); \
            }
            
            //
            // Macro to return address of a trap/interrupt handler in IDT
            //
            #define KiReturnHandlerAddressFromIDT(Vector) \
               MAKEULONG(KiPcr()->IDT[HalVectorToIDTEntry(Vector)].ExtendedOffset, KiPcr()->IDT[HalVectorToIDTEntry(Vector)].Offset)
            
            #endif
            
            
            DRIVER_UNLOAD DriverUnload;
            VOID DriverUnload(__in PDRIVER_OBJECT DriverObject)
            {   
            
            }
            
            
            #if defined(_WIN64)
            void show_idt(int i)
                /*
                i的取值可以是0.
                */
            {
                AMD64_DESCRIPTOR idtr = {0};
            
                SIZE_T r = 0;
                PVOID p = 0;
                int index = 0;
                int maximun = 0;
            
                PKIDTENTRY64 pkidte = 0;
                SIZE_T ISR = 0;
                USHORT us = 0;
            
                KeSetSystemAffinityThread(i + 1);
                __sidt(&idtr);//KeGetPcr函數可是可用的喲!
                KeRevertToUserAffinityThread();
            
                p = &idtr.Pad[1];
                r = * (SIZE_T *)p;
            
                pkidte = (PKIDTENTRY64)r; 
            
                if (idtr.Pad[0] % sizeof(KIDTENTRY64) == 0) {//idtr.Pad[0] == 0xfff.
                    maximun = idtr.Pad[0] / sizeof(KIDTENTRY64);
                } else {
                    maximun = idtr.Pad[0] / sizeof(KIDTENTRY64);
                    maximun++;//這個數也是256.
                }
            
                for ( ;index < maximun ;index++ ) 
                {
                    PKIDTENTRY64 pkidte_t = &pkidte[index];
            
                    ISR = pkidte_t->OffsetHigh;
                    ISR = (ISR << 32);
                    ISR += (pkidte_t->OffsetLow + (pkidte_t->OffsetMiddle << 16));
            
                    if (pkidte_t->IstIndex == 0) {
                        KdPrint(("第%d號CPU的第0x%02x中斷的地址:0x%p\n", i, index, ISR));
                    } else {
                        KdPrint(("第%d號CPU的第0x%02x中斷的地址:0x%p\n", i, index, ISR));//還可以進一步獲取Stack的信息。
                    }
                }
            }
            #else 
            void show_idt(int i)
                /*
                i的取值可以是0.
                */
            {
                //SIZE_T IDTR;
                X86_DESCRIPTOR idtr = {0};//A pointer to the memory location where the IDTR is stored.
            
                SIZE_T r = 0;
                PVOID p = 0;
                int index = 0;
                int maximun = 0;
            
                PKIDTENTRY pkidte;
                SIZE_T ISR = 0;
            
                KeSetSystemAffinityThread(i + 1);
                __sidt(&idtr);// http://msdn.microsoft.com/zh-cn/library/aa983358%28v=vs.120%29.aspx 另一個思路是自己實現:KeGetPcr()。
                KeRevertToUserAffinityThread();
            
                p = &idtr.Limit;
                r = * (SIZE_T *)p;
            
                pkidte = (PKIDTENTRY)r; 
            
                /*
                其實直接:
                maximun = (idtr.Base + 1) / sizeof(KIDTENTRY);
                也可以。
                maximun一般等于256.
                */
                if (idtr.Pad % sizeof(KIDTENTRY) == 0) {
                    maximun = idtr.Pad / sizeof(KIDTENTRY);
                } else {
                    maximun = idtr.Pad / sizeof(KIDTENTRY);
                    maximun++;
                }
            
                for ( ;index < maximun ;index++ ) //另一個思路是根據Limit來遍歷,這個數一般是2047 == 0x7ff.
                {
                    PKIDTENTRY pkidte_t = &pkidte[index];
            
                    if (pkidte_t->ExtendedOffset) {
                        ISR = pkidte_t->Offset + (pkidte_t->ExtendedOffset << 16);
                        KdPrint(("第%d號CPU的第0x%02x中斷的地址:0x%p\n", i, index, ISR));
                    } else {//注意:pkidte_t->ExtendedOffset == 0的情況的分析。
                        if (pkidte_t->Selector == 8) {
                            KdPrint(("第%d號CPU的第0x%02x中斷沒有使用。Offset:0x%x,Access:0x%x.\n", i, index, pkidte_t->Offset, pkidte_t->Access));
                        } else {
                            KdPrint(("第%d號CPU的第0x%02x中斷的Task Selector:0x%x, Offset:0x%x, Access:0x%x。\n", i, index, pkidte_t->Selector, pkidte_t->Offset, pkidte_t->Access));
                        }
                    }
                }
            }
            #endif
            
            
            #pragma INITCODE
            DRIVER_INITIALIZE DriverEntry;
            NTSTATUS DriverEntry(__in struct _DRIVER_OBJECT * DriverObject, __in PUNICODE_STRING RegistryPath)
            {
                int i = 0;
            
                KdBreakPoint();
            
                DriverObject->DriverUnload = DriverUnload;
            
                for ( ;i < KeNumberProcessors ;i++ )//KeQueryMaximumProcessorCount()
                {        
                    show_idt(i);        
                }
            
                return STATUS_SUCCESS;
            } 
            

            #!bash
            /*
            0: kd> !idt
            
            Dumping IDT: 8003f400
            
            455901d000000037:   806e7864 hal!PicSpuriousService37
            455901d00000003d:   806e8e2c hal!HalpApcInterrupt
            455901d000000041:   806e8c88 hal!HalpDispatchInterrupt
            455901d000000050:   806e793c hal!HalpApicRebootService
            455901d000000062:   81fd6044 atapi!IdePortInterrupt (KINTERRUPT 81fd6008)
            455901d000000063:   81f1ebec portcls!CKsShellRequestor::`vector deleting destructor'+0x26 (KINTERRUPT 81f1ebb0)
            455901d000000073:   81d17bec SCSIPORT!ScsiPortInterrupt (KINTERRUPT 81d17bb0)
            455901d000000082:   81e26bec atapi!IdePortInterrupt (KINTERRUPT 81e26bb0)
            455901d000000083:   81c42044 vmci!DllUnload+0x7d6 (KINTERRUPT 81c42008)
                         VIDEOPRT!pVideoPortInterrupt (KINTERRUPT 81d0e758)
            455901d000000093:   81fcd684 i8042prt!I8042KeyboardInterruptService (KINTERRUPT 81fcd648)
            455901d0000000a3:   81d0ebec i8042prt!I8042MouseInterruptService (KINTERRUPT 81d0ebb0)
            455901d0000000b1:   820ce8cc ACPI!ACPIInterruptServiceRoutine (KINTERRUPT 820ce890)
            455901d0000000b4:   81e1e9ec NDIS!ndisMIsr (KINTERRUPT 81e1e9b0)
            455901d0000000c1:   806e7ac0 hal!HalpBroadcastCallService
            455901d0000000d1:   806e6e54 hal!HalpClockInterrupt
            455901d0000000e1:   806e8048 hal!HalpIpiHandler
            455901d0000000e3:   806e7dac hal!HalpLocalApicErrorService
            455901d0000000fd:   806e85a8 hal!HalpProfileInterrupt
            455901d0000000fe:   806e8748 hal!HalpPerfInterrupt
            
            0: kd> !pcr 
            KPCR for Processor 0 at ffdff000:
                Major 1 Minor 1
                NtTib.ExceptionList: 80551cb0
                    NtTib.StackBase: 805524f0
                   NtTib.StackLimit: 8054f700
                 NtTib.SubSystemTib: 00000000
                      NtTib.Version: 00000000
                  NtTib.UserPointer: 00000000
                      NtTib.SelfTib: 00000000
            
                            SelfPcr: ffdff000
                               Prcb: ffdff120
                               Irql: 00000000
                                IRR: 00000000
                                IDR: ffffffff
                      InterruptMode: 00000000
                                IDT: 8003f400
                                GDT: 8003f000
                                TSS: 80042000
            
                      CurrentThread: 8055ce60
                         NextThread: 00000000
                         IdleThread: 8055ce60
            
                          DpcQueue: 
            0: kd> r idtr
            idtr=8003f400
            0: kd> dw idtr
            8003f400  3360 0008 8e00 8054 34dc 0008 8e00 8054
            8003f410  113e 0058 8500 0000 38f0 0008 ee00 8054
            8003f420  3a70 0008 ee00 8054 3bd0 0008 8e00 8054
            8003f430  3d44 0008 8e00 8054 43bc 0008 8e00 8054
            8003f440  1198 0050 8500 0000 47c0 0008 8e00 8054
            8003f450  48e0 0008 8e00 8054 4a20 0008 8e00 8054
            8003f460  4c80 0008 8e00 8054 4f6c 0008 8e00 8054
            8003f470  568c 0008 8e00 8054 590c 0008 8e00 8054
            0: kd> u 80543360
            nt!KiTrap00:
            80543360 6a00            push    0
            80543362 66c74424020000  mov     word ptr [esp+2],0
            80543369 55              push    ebp
            8054336a 53              push    ebx
            8054336b 56              push    esi
            8054336c 57              push    edi
            8054336d 0fa0            push    fs
            8054336f bb30000000      mov     ebx,30h
            0: kd> u 805434dc
            nt!KiTrap01:
            805434dc 6a00            push    0
            805434de 66c74424020000  mov     word ptr [esp+2],0
            805434e5 55              push    ebp
            805434e6 53              push    ebx
            805434e7 56              push    esi
            805434e8 57              push    edi
            805434e9 0fa0            push    fs
            805434eb bb30000000      mov     ebx,30h
            1: kd> !idt -a 
            
            Dumping IDT: f8733590
            
            2d65dee600000000:   80543360 nt!KiTrap00
            2d65dee600000001:   805434dc nt!KiTrap01
            2d65dee600000002:   Task Selector = 0x0058
            2d65dee600000003:   805438f0 nt!KiTrap03
            2d65dee600000004:   80543a70 nt!KiTrap04
            2d65dee600000005:   80543bd0 nt!KiTrap05
            2d65dee600000006:   80543d44 nt!KiTrap06
            2d65dee600000007:   805443bc nt!KiTrap07
            2d65dee600000008:   Task Selector = 0x0050
            2d65dee600000009:   805447c0 nt!KiTrap09
            2d65dee60000000a:   805448e0 nt!KiTrap0A
            2d65dee60000000b:   80544a20 nt!KiTrap0B
            2d65dee60000000c:   80544c80 nt!KiTrap0C
            2d65dee60000000d:   80544f6c nt!KiTrap0D
            2d65dee60000000e:   8054568c nt!KiTrap0E
            2d65dee60000000f:   8054590c nt!KiTrap0F
            2d65dee600000010:   80545a2c nt!KiTrap10
            2d65dee600000011:   80545b68 nt!KiTrap11
            2d65dee600000012:   Task Selector = 0x00A0
            2d65dee600000013:   80545cd0 nt!KiTrap13
            2d65dee600000014:   8054590c nt!KiTrap0F
            2d65dee600000015:   8054590c nt!KiTrap0F
            2d65dee600000016:   8054590c nt!KiTrap0F
            2d65dee600000017:   8054590c nt!KiTrap0F
            2d65dee600000018:   8054590c nt!KiTrap0F
            2d65dee600000019:   8054590c nt!KiTrap0F
            2d65dee60000001a:   8054590c nt!KiTrap0F
            2d65dee60000001b:   8054590c nt!KiTrap0F
            2d65dee60000001c:   8054590c nt!KiTrap0F
            2d65dee60000001d:   8054590c nt!KiTrap0F
            2d65dee60000001e:   8054590c nt!KiTrap0F
            2d65dee60000001f:   806e810c hal!HalpApicSpuriousService
            2d65dee600000020:   00000000
            2d65dee600000021:   00000000
            2d65dee600000022:   00000000
            2d65dee600000023:   00000000
            2d65dee600000024:   00000000
            2d65dee600000025:   00000000
            2d65dee600000026:   00000000
            2d65dee600000027:   00000000
            2d65dee600000028:   00000000
            2d65dee600000029:   00000000
            2d65dee60000002a:   80542b8e nt!KiGetTickCount
            2d65dee60000002b:   80542c90 nt!KiCallbackReturn
            2d65dee60000002c:   80542e40 nt!KiSetLowWaitHighThread
            2d65dee60000002d:   805437cc nt!KiDebugService
            2d65dee60000002e:   80542611 nt!KiSystemService
            2d65dee60000002f:   8054590c nt!KiTrap0F
            2d65dee600000030:   80541cd0 nt!KiStartUnexpectedRange
            2d65dee600000031:   80541cda nt!KiUnexpectedInterrupt1
            2d65dee600000032:   80541ce4 nt!KiUnexpectedInterrupt2
            2d65dee600000033:   80541cee nt!KiUnexpectedInterrupt3
            2d65dee600000034:   80541cf8 nt!KiUnexpectedInterrupt4
            2d65dee600000035:   80541d02 nt!KiUnexpectedInterrupt5
            2d65dee600000036:   80541d0c nt!KiUnexpectedInterrupt6
            2d65dee600000037:   806e7864 hal!PicSpuriousService37
            2d65dee600000038:   80541d20 nt!KiUnexpectedInterrupt8
            2d65dee600000039:   80541d2a nt!KiUnexpectedInterrupt9
            2d65dee60000003a:   80541d34 nt!KiUnexpectedInterrupt10
            2d65dee60000003b:   80541d3e nt!KiUnexpectedInterrupt11
            2d65dee60000003c:   80541d48 nt!KiUnexpectedInterrupt12
            2d65dee60000003d:   806e8e2c hal!HalpApcInterrupt
            2d65dee60000003e:   80541d5c nt!KiUnexpectedInterrupt14
            2d65dee60000003f:   80541d66 nt!KiUnexpectedInterrupt15
            2d65dee600000040:   80541d70 nt!KiUnexpectedInterrupt16
            2d65dee600000041:   806e8c88 hal!HalpDispatchInterrupt
            2d65dee600000042:   80541d84 nt!KiUnexpectedInterrupt18
            2d65dee600000043:   80541d8e nt!KiUnexpectedInterrupt19
            2d65dee600000044:   80541d98 nt!KiUnexpectedInterrupt20
            2d65dee600000045:   80541da2 nt!KiUnexpectedInterrupt21
            2d65dee600000046:   80541dac nt!KiUnexpectedInterrupt22
            2d65dee600000047:   80541db6 nt!KiUnexpectedInterrupt23
            2d65dee600000048:   80541dc0 nt!KiUnexpectedInterrupt24
            2d65dee600000049:   80541dca nt!KiUnexpectedInterrupt25
            2d65dee60000004a:   80541dd4 nt!KiUnexpectedInterrupt26
            2d65dee60000004b:   80541dde nt!KiUnexpectedInterrupt27
            2d65dee60000004c:   80541de8 nt!KiUnexpectedInterrupt28
            2d65dee60000004d:   80541df2 nt!KiUnexpectedInterrupt29
            2d65dee60000004e:   80541dfc nt!KiUnexpectedInterrupt30
            2d65dee60000004f:   80541e06 nt!KiUnexpectedInterrupt31
            2d65dee600000050:   806e793c hal!HalpApicRebootService
            2d65dee600000051:   80541e1a nt!KiUnexpectedInterrupt33
            2d65dee600000052:   80541e24 nt!KiUnexpectedInterrupt34
            2d65dee600000053:   80541e2e nt!KiUnexpectedInterrupt35
            2d65dee600000054:   80541e38 nt!KiUnexpectedInterrupt36
            2d65dee600000055:   80541e42 nt!KiUnexpectedInterrupt37
            2d65dee600000056:   80541e4c nt!KiUnexpectedInterrupt38
            2d65dee600000057:   80541e56 nt!KiUnexpectedInterrupt39
            2d65dee600000058:   80541e60 nt!KiUnexpectedInterrupt40
            2d65dee600000059:   80541e6a nt!KiUnexpectedInterrupt41
            2d65dee60000005a:   80541e74 nt!KiUnexpectedInterrupt42
            2d65dee60000005b:   80541e7e nt!KiUnexpectedInterrupt43
            2d65dee60000005c:   80541e88 nt!KiUnexpectedInterrupt44
            2d65dee60000005d:   80541e92 nt!KiUnexpectedInterrupt45
            2d65dee60000005e:   80541e9c nt!KiUnexpectedInterrupt46
            2d65dee60000005f:   80541ea6 nt!KiUnexpectedInterrupt47
            2d65dee600000060:   80541eb0 nt!KiUnexpectedInterrupt48
            2d65dee600000061:   80541eba nt!KiUnexpectedInterrupt49
            2d65dee600000062:   8208e63c atapi!IdePortInterrupt (KINTERRUPT 8208e600)
            2d65dee600000063:   82070c74 portcls!CKsShellRequestor::`vector deleting destructor'+0x26 (KINTERRUPT 82070c38)
            2d65dee600000064:   80541ed8 nt!KiUnexpectedInterrupt52
            2d65dee600000065:   80541ee2 nt!KiUnexpectedInterrupt53
            2d65dee600000066:   80541eec nt!KiUnexpectedInterrupt54
            2d65dee600000067:   80541ef6 nt!KiUnexpectedInterrupt55
            2d65dee600000068:   80541f00 nt!KiUnexpectedInterrupt56
            2d65dee600000069:   80541f0a nt!KiUnexpectedInterrupt57
            2d65dee60000006a:   80541f14 nt!KiUnexpectedInterrupt58
            2d65dee60000006b:   80541f1e nt!KiUnexpectedInterrupt59
            2d65dee60000006c:   80541f28 nt!KiUnexpectedInterrupt60
            2d65dee60000006d:   80541f32 nt!KiUnexpectedInterrupt61
            2d65dee60000006e:   80541f3c nt!KiUnexpectedInterrupt62
            2d65dee60000006f:   80541f46 nt!KiUnexpectedInterrupt63
            2d65dee600000070:   80541f50 nt!KiUnexpectedInterrupt64
            2d65dee600000071:   80541f5a nt!KiUnexpectedInterrupt65
            2d65dee600000072:   80541f64 nt!KiUnexpectedInterrupt66
            2d65dee600000073:   81f80bbc SCSIPORT!ScsiPortInterrupt (KINTERRUPT 81f80b80)
            2d65dee600000074:   80541f78 nt!KiUnexpectedInterrupt68
            2d65dee600000075:   80541f82 nt!KiUnexpectedInterrupt69
            2d65dee600000076:   80541f8c nt!KiUnexpectedInterrupt70
            2d65dee600000077:   80541f96 nt!KiUnexpectedInterrupt71
            2d65dee600000078:   80541fa0 nt!KiUnexpectedInterrupt72
            2d65dee600000079:   80541faa nt!KiUnexpectedInterrupt73
            2d65dee60000007a:   80541fb4 nt!KiUnexpectedInterrupt74
            2d65dee60000007b:   80541fbe nt!KiUnexpectedInterrupt75
            2d65dee60000007c:   80541fc8 nt!KiUnexpectedInterrupt76
            2d65dee60000007d:   80541fd2 nt!KiUnexpectedInterrupt77
            2d65dee60000007e:   80541fdc nt!KiUnexpectedInterrupt78
            2d65dee60000007f:   80541fe6 nt!KiUnexpectedInterrupt79
            2d65dee600000080:   80541ff0 nt!KiUnexpectedInterrupt80
            2d65dee600000081:   80541ffa nt!KiUnexpectedInterrupt81
            2d65dee600000082:   81f99bbc atapi!IdePortInterrupt (KINTERRUPT 81f99b80)
            2d65dee600000083:   81ccd48c vmci!DllUnload+0x7d6 (KINTERRUPT 81ccd450)
                         VIDEOPRT!pVideoPortInterrupt (KINTERRUPT 82091ca0)
            2d65dee600000084:   80542018 nt!KiUnexpectedInterrupt84
            2d65dee600000085:   80542022 nt!KiUnexpectedInterrupt85
            2d65dee600000086:   8054202c nt!KiUnexpectedInterrupt86
            2d65dee600000087:   80542036 nt!KiUnexpectedInterrupt87
            2d65dee600000088:   80542040 nt!KiUnexpectedInterrupt88
            2d65dee600000089:   8054204a nt!KiUnexpectedInterrupt89
            2d65dee60000008a:   80542054 nt!KiUnexpectedInterrupt90
            2d65dee60000008b:   8054205e nt!KiUnexpectedInterrupt91
            2d65dee60000008c:   80542068 nt!KiUnexpectedInterrupt92
            2d65dee60000008d:   80542072 nt!KiUnexpectedInterrupt93
            2d65dee60000008e:   8054207c nt!KiUnexpectedInterrupt94
            2d65dee60000008f:   80542086 nt!KiUnexpectedInterrupt95
            2d65dee600000090:   80542090 nt!KiUnexpectedInterrupt96
            2d65dee600000091:   8054209a nt!KiUnexpectedInterrupt97
            2d65dee600000092:   805420a4 nt!KiUnexpectedInterrupt98
            2d65dee600000093:   81c7435c i8042prt!I8042KeyboardInterruptService (KINTERRUPT 81c74320)
            2d65dee600000094:   805420b8 nt!KiUnexpectedInterrupt100
            2d65dee600000095:   805420c2 nt!KiUnexpectedInterrupt101
            2d65dee600000096:   805420cc nt!KiUnexpectedInterrupt102
            2d65dee600000097:   805420d6 nt!KiUnexpectedInterrupt103
            2d65dee600000098:   805420e0 nt!KiUnexpectedInterrupt104
            2d65dee600000099:   805420ea nt!KiUnexpectedInterrupt105
            2d65dee60000009a:   805420f4 nt!KiUnexpectedInterrupt106
            2d65dee60000009b:   805420fe nt!KiUnexpectedInterrupt107
            2d65dee60000009c:   80542108 nt!KiUnexpectedInterrupt108
            2d65dee60000009d:   80542112 nt!KiUnexpectedInterrupt109
            2d65dee60000009e:   8054211c nt!KiUnexpectedInterrupt110
            2d65dee60000009f:   80542126 nt!KiUnexpectedInterrupt111
            2d65dee6000000a0:   80542130 nt!KiUnexpectedInterrupt112
            2d65dee6000000a1:   8054213a nt!KiUnexpectedInterrupt113
            2d65dee6000000a2:   80542144 nt!KiUnexpectedInterrupt114
            2d65dee6000000a3:   81f306ec i8042prt!I8042MouseInterruptService (KINTERRUPT 81f306b0)
            2d65dee6000000a4:   80542158 nt!KiUnexpectedInterrupt116
            2d65dee6000000a5:   80542162 nt!KiUnexpectedInterrupt117
            2d65dee6000000a6:   8054216c nt!KiUnexpectedInterrupt118
            2d65dee6000000a7:   80542176 nt!KiUnexpectedInterrupt119
            2d65dee6000000a8:   80542180 nt!KiUnexpectedInterrupt120
            2d65dee6000000a9:   8054218a nt!KiUnexpectedInterrupt121
            2d65dee6000000aa:   80542194 nt!KiUnexpectedInterrupt122
            2d65dee6000000ab:   8054219e nt!KiUnexpectedInterrupt123
            2d65dee6000000ac:   805421a8 nt!KiUnexpectedInterrupt124
            2d65dee6000000ad:   805421b2 nt!KiUnexpectedInterrupt125
            2d65dee6000000ae:   805421bc nt!KiUnexpectedInterrupt126
            2d65dee6000000af:   805421c6 nt!KiUnexpectedInterrupt127
            2d65dee6000000b0:   805421d0 nt!KiUnexpectedInterrupt128
            2d65dee6000000b1:   821522ac ACPI!ACPIInterruptServiceRoutine (KINTERRUPT 82152270)
            2d65dee6000000b2:   805421e4 nt!KiUnexpectedInterrupt130
            2d65dee6000000b3:   805421ee nt!KiUnexpectedInterrupt131
            2d65dee6000000b4:   8201b2ac NDIS!ndisMIsr (KINTERRUPT 8201b270)
            2d65dee6000000b5:   80542202 nt!KiUnexpectedInterrupt133
            2d65dee6000000b6:   8054220c nt!KiUnexpectedInterrupt134
            2d65dee6000000b7:   80542216 nt!KiUnexpectedInterrupt135
            2d65dee6000000b8:   80542220 nt!KiUnexpectedInterrupt136
            2d65dee6000000b9:   8054222a nt!KiUnexpectedInterrupt137
            2d65dee6000000ba:   80542234 nt!KiUnexpectedInterrupt138
            2d65dee6000000bb:   8054223e nt!KiUnexpectedInterrupt139
            2d65dee6000000bc:   80542248 nt!KiUnexpectedInterrupt140
            2d65dee6000000bd:   80542252 nt!KiUnexpectedInterrupt141
            2d65dee6000000be:   8054225c nt!KiUnexpectedInterrupt142
            2d65dee6000000bf:   80542266 nt!KiUnexpectedInterrupt143
            2d65dee6000000c0:   80542270 nt!KiUnexpectedInterrupt144
            2d65dee6000000c1:   806e7ac0 hal!HalpBroadcastCallService
            2d65dee6000000c2:   80542284 nt!KiUnexpectedInterrupt146
            2d65dee6000000c3:   8054228e nt!KiUnexpectedInterrupt147
            2d65dee6000000c4:   80542298 nt!KiUnexpectedInterrupt148
            2d65dee6000000c5:   805422a2 nt!KiUnexpectedInterrupt149
            2d65dee6000000c6:   805422ac nt!KiUnexpectedInterrupt150
            2d65dee6000000c7:   805422b6 nt!KiUnexpectedInterrupt151
            2d65dee6000000c8:   805422c0 nt!KiUnexpectedInterrupt152
            2d65dee6000000c9:   805422ca nt!KiUnexpectedInterrupt153
            2d65dee6000000ca:   805422d4 nt!KiUnexpectedInterrupt154
            2d65dee6000000cb:   805422de nt!KiUnexpectedInterrupt155
            2d65dee6000000cc:   805422e8 nt!KiUnexpectedInterrupt156
            2d65dee6000000cd:   805422f2 nt!KiUnexpectedInterrupt157
            2d65dee6000000ce:   805422fc nt!KiUnexpectedInterrupt158
            2d65dee6000000cf:   80542306 nt!KiUnexpectedInterrupt159
            2d65dee6000000d0:   80542310 nt!KiUnexpectedInterrupt160
            2d65dee6000000d1:   806e72a0 hal!HalpClockInterruptPn
            2d65dee6000000d2:   80542324 nt!KiUnexpectedInterrupt162
            2d65dee6000000d3:   8054232e nt!KiUnexpectedInterrupt163
            2d65dee6000000d4:   80542338 nt!KiUnexpectedInterrupt164
            2d65dee6000000d5:   80542342 nt!KiUnexpectedInterrupt165
            2d65dee6000000d6:   8054234c nt!KiUnexpectedInterrupt166
            2d65dee6000000d7:   80542356 nt!KiUnexpectedInterrupt167
            2d65dee6000000d8:   80542360 nt!KiUnexpectedInterrupt168
            2d65dee6000000d9:   8054236a nt!KiUnexpectedInterrupt169
            2d65dee6000000da:   80542374 nt!KiUnexpectedInterrupt170
            2d65dee6000000db:   8054237e nt!KiUnexpectedInterrupt171
            2d65dee6000000dc:   80542388 nt!KiUnexpectedInterrupt172
            2d65dee6000000dd:   80542392 nt!KiUnexpectedInterrupt173
            2d65dee6000000de:   8054239c nt!KiUnexpectedInterrupt174
            2d65dee6000000df:   805423a6 nt!KiUnexpectedInterrupt175
            2d65dee6000000e0:   805423b0 nt!KiUnexpectedInterrupt176
            2d65dee6000000e1:   806e8048 hal!HalpIpiHandler
            2d65dee6000000e2:   805423c4 nt!KiUnexpectedInterrupt178
            2d65dee6000000e3:   806e7dac hal!HalpLocalApicErrorService
            2d65dee6000000e4:   805423d8 nt!KiUnexpectedInterrupt180
            2d65dee6000000e5:   805423e2 nt!KiUnexpectedInterrupt181
            2d65dee6000000e6:   805423ec nt!KiUnexpectedInterrupt182
            2d65dee6000000e7:   805423f6 nt!KiUnexpectedInterrupt183
            2d65dee6000000e8:   80542400 nt!KiUnexpectedInterrupt184
            2d65dee6000000e9:   8054240a nt!KiUnexpectedInterrupt185
            2d65dee6000000ea:   80542414 nt!KiUnexpectedInterrupt186
            2d65dee6000000eb:   8054241e nt!KiUnexpectedInterrupt187
            2d65dee6000000ec:   80542428 nt!KiUnexpectedInterrupt188
            2d65dee6000000ed:   80542432 nt!KiUnexpectedInterrupt189
            2d65dee6000000ee:   80542439 nt!KiUnexpectedInterrupt190
            2d65dee6000000ef:   80542440 nt!KiUnexpectedInterrupt191
            2d65dee6000000f0:   80542447 nt!KiUnexpectedInterrupt192
            2d65dee6000000f1:   8054244e nt!KiUnexpectedInterrupt193
            2d65dee6000000f2:   80542455 nt!KiUnexpectedInterrupt194
            2d65dee6000000f3:   8054245c nt!KiUnexpectedInterrupt195
            2d65dee6000000f4:   80542463 nt!KiUnexpectedInterrupt196
            2d65dee6000000f5:   8054246a nt!KiUnexpectedInterrupt197
            2d65dee6000000f6:   80542471 nt!KiUnexpectedInterrupt198
            2d65dee6000000f7:   80542478 nt!KiUnexpectedInterrupt199
            2d65dee6000000f8:   8054247f nt!KiUnexpectedInterrupt200
            2d65dee6000000f9:   80542486 nt!KiUnexpectedInterrupt201
            2d65dee6000000fa:   8054248d nt!KiUnexpectedInterrupt202
            2d65dee6000000fb:   80542494 nt!KiUnexpectedInterrupt203
            2d65dee6000000fc:   8054249b nt!KiUnexpectedInterrupt204
            2d65dee6000000fd:   806e85a8 hal!HalpProfileInterrupt
            2d65dee6000000fe:   806e8748 hal!HalpPerfInterrupt
            2d65dee6000000ff:   805424b0 nt!KiUnexpectedInterrupt207
            
            kd> r idtr
            idtr=8003f400
            kd> !idt 8003f400
            
            Dumping IDT: 8003f400
            
            fbf4ec7d8003f400:   Task Selector = 0x6F4C
            kd> dt _KIDTENTRY
            nt!_KIDTENTRY
               +0x000 Offset           : Uint2B
               +0x002 Selector         : Uint2B
               +0x004 Access           : Uint2B
               +0x006 ExtendedOffset   : Uint2B
            kd> dt _X86_DESCRIPTOR
            Symbol _X86_DESCRIPTOR not found.
            kd> dt _DESCRIPTOR 注意:64位下沒有這個結構。
            nt!_DESCRIPTOR
               +0x000 Pad              : Uint2B
               +0x002 Limit            : Uint2B
               +0x004 Base             : Uint4B
            0: kd> dt nt!_KINTERRUPT 8208e398
               +0x000 Type             : 0n22
               +0x002 Size             : 0n484
               +0x004 InterruptListEntry : _LIST_ENTRY [ 0x8208e39c - 0x8208e39c ]
               +0x00c ServiceRoutine   : 0xba63e67e     unsigned char  atapi!IdePortInterrupt+0
               +0x010 ServiceContext   : 0x81fa4030 Void
               +0x014 SpinLock         : 0
               +0x018 TickCount        : 0xffffffff
               +0x01c ActualLock       : 0x8208e5fc  -> 0
               +0x020 DispatchAddress  : 0x80546780     void  nt!KiInterruptDispatch+0
               +0x024 Vector           : 0x162
               +0x028 Irql             : 0x5 ''
               +0x029 SynchronizeIrql  : 0x5 ''
               +0x02a FloatingSave     : 0 ''
               +0x02b Connected        : 0x1 ''
               +0x02c Number           : 0 ''
               +0x02d ShareVector      : 0 ''
               +0x030 Mode             : 1 ( Latched )
               +0x034 ServiceCount     : 0
               +0x038 DispatchCount    : 0xffffffff
               +0x03c DispatchCode     : [106] 0x56535554
            
            1: kd> dt _AMD64_DESCRIPTOR 注意:運行環境是64位系統。
            test!_AMD64_DESCRIPTOR
               +0x000 Pad              : [3] Uint2B
               +0x006 Limit            : Uint2B
               +0x008 Base             : Uint8B
            1: kd> dt _KIDTENTRY64 注意:運行環境是64位系統。
            nt!_KIDTENTRY64
               +0x000 OffsetLow        : Uint2B
               +0x002 Selector         : Uint2B
               +0x004 IstIndex         : Pos 0, 3 Bits
               +0x004 Reserved0        : Pos 3, 5 Bits
               +0x004 Type             : Pos 8, 5 Bits
               +0x004 Dpl              : Pos 13, 2 Bits
               +0x004 Present          : Pos 15, 1 Bit
               +0x006 OffsetMiddle     : Uint2B
               +0x008 OffsetHigh       : Uint4B
               +0x00c Reserved1        : Uint4B
               +0x000 Alignment        : Uint8B
            */
            

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