说在前面,本博客的windows内核没有特殊声明都是基于Window XP系统下的。并且,此篇文章会不定时更新,添加一些总结性的、常用到的知识和技巧,以便查询和回顾基础知识。
1 常用的结构
1.1 _EPROCESS结构
_EPROCESS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110
| 0: kd> dt _EPROCESS ntdll!_EPROCESS +0x000 Pcb : _KPROCESS +0x06c ProcessLock : _EX_PUSH_LOCK +0x070 CreateTime : _LARGE_INTEGER +0x078 ExitTime : _LARGE_INTEGER +0x080 RundownProtect : _EX_RUNDOWN_REF +0x084 UniqueProcessId : Ptr32 Void +0x088 ActiveProcessLinks : _LIST_ENTRY +0x090 QuotaUsage : [3] Uint4B +0x09c QuotaPeak : [3] Uint4B +0x0a8 CommitCharge : Uint4B +0x0ac PeakVirtualSize : Uint4B +0x0b0 VirtualSize : Uint4B +0x0b4 SessionProcessLinks : _LIST_ENTRY +0x0bc DebugPort : Ptr32 Void +0x0c0 ExceptionPort : Ptr32 Void +0x0c4 ObjectTable : Ptr32 _HANDLE_TABLE +0x0c8 Token : _EX_FAST_REF +0x0cc WorkingSetLock : _FAST_MUTEX +0x0ec WorkingSetPage : Uint4B +0x0f0 AddressCreationLock : _FAST_MUTEX +0x110 HyperSpaceLock : Uint4B +0x114 ForkInProgress : Ptr32 _ETHREAD +0x118 HardwareTrigger : Uint4B +0x11c VadRoot : Ptr32 Void +0x120 VadHint : Ptr32 Void +0x124 CloneRoot : Ptr32 Void +0x128 NumberOfPrivatePages : Uint4B +0x12c NumberOfLockedPages : Uint4B +0x130 Win32Process : Ptr32 Void +0x134 Job : Ptr32 _EJOB +0x138 SectionObject : Ptr32 Void +0x13c SectionBaseAddress : Ptr32 Void +0x140 QuotaBlock : Ptr32 _EPROCESS_QUOTA_BLOCK +0x144 WorkingSetWatch : Ptr32 _PAGEFAULT_HISTORY +0x148 Win32WindowStation : Ptr32 Void +0x14c InheritedFromUniqueProcessId : Ptr32 Void +0x150 LdtInformation : Ptr32 Void +0x154 VadFreeHint : Ptr32 Void +0x158 VdmObjects : Ptr32 Void +0x15c DeviceMap : Ptr32 Void +0x160 PhysicalVadList : _LIST_ENTRY +0x168 PageDirectoryPte : _HARDWARE_PTE_X86 +0x168 Filler : Uint8B +0x170 Session : Ptr32 Void +0x174 ImageFileName : [16] UChar +0x184 JobLinks : _LIST_ENTRY +0x18c LockedPagesList : Ptr32 Void +0x190 ThreadListHead : _LIST_ENTRY +0x198 SecurityPort : Ptr32 Void +0x19c PaeTop : Ptr32 Void +0x1a0 ActiveThreads : Uint4B +0x1a4 GrantedAccess : Uint4B +0x1a8 DefaultHardErrorProcessing : Uint4B +0x1ac LastThreadExitStatus : Int4B +0x1b0 Peb : Ptr32 _PEB +0x1b4 PrefetchTrace : _EX_FAST_REF +0x1b8 ReadOperationCount : _LARGE_INTEGER +0x1c0 WriteOperationCount : _LARGE_INTEGER +0x1c8 OtherOperationCount : _LARGE_INTEGER +0x1d0 ReadTransferCount : _LARGE_INTEGER +0x1d8 WriteTransferCount : _LARGE_INTEGER +0x1e0 OtherTransferCount : _LARGE_INTEGER +0x1e8 CommitChargeLimit : Uint4B +0x1ec CommitChargePeak : Uint4B +0x1f0 AweInfo : Ptr32 Void +0x1f4 SeAuditProcessCreationInfo : _SE_AUDIT_PROCESS_CREATION_INFO +0x1f8 Vm : _MMSUPPORT +0x238 LastFaultCount : Uint4B +0x23c ModifiedPageCount : Uint4B +0x240 NumberOfVads : Uint4B +0x244 JobStatus : Uint4B +0x248 Flags : Uint4B +0x248 CreateReported : Pos 0, 1 Bit +0x248 NoDebugInherit : Pos 1, 1 Bit +0x248 ProcessExiting : Pos 2, 1 Bit +0x248 ProcessDelete : Pos 3, 1 Bit +0x248 Wow64SplitPages : Pos 4, 1 Bit +0x248 VmDeleted : Pos 5, 1 Bit +0x248 OutswapEnabled : Pos 6, 1 Bit +0x248 Outswapped : Pos 7, 1 Bit +0x248 ForkFailed : Pos 8, 1 Bit +0x248 HasPhysicalVad : Pos 9, 1 Bit +0x248 AddressSpaceInitialized : Pos 10, 2 Bits +0x248 SetTimerResolution : Pos 12, 1 Bit +0x248 BreakOnTermination : Pos 13, 1 Bit +0x248 SessionCreationUnderway : Pos 14, 1 Bit +0x248 WriteWatch : Pos 15, 1 Bit +0x248 ProcessInSession : Pos 16, 1 Bit +0x248 OverrideAddressSpace : Pos 17, 1 Bit +0x248 HasAddressSpace : Pos 18, 1 Bit +0x248 LaunchPrefetched : Pos 19, 1 Bit +0x248 InjectInpageErrors : Pos 20, 1 Bit +0x248 VmTopDown : Pos 21, 1 Bit +0x248 Unused3 : Pos 22, 1 Bit +0x248 Unused4 : Pos 23, 1 Bit +0x248 VdmAllowed : Pos 24, 1 Bit +0x248 Unused : Pos 25, 5 Bits +0x248 Unused1 : Pos 30, 1 Bit +0x248 Unused2 : Pos 31, 1 Bit +0x24c ExitStatus : Int4B +0x250 NextPageColor : Uint2B +0x252 SubSystemMinorVersion : UChar +0x253 SubSystemMajorVersion : UChar +0x252 SubSystemVersion : Uint2B +0x254 PriorityClass : UChar +0x255 WorkingSetAcquiredUnsafe : UChar +0x258 Cookie : Uint4B
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1.2 _KPROCESS结构
_EPROCESS的0x0偏移处就是_KPROCESS结构。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| 0: kd> dt _KPROCESS ntdll!_KPROCESS +0x000 Header : _DISPATCHER_HEADER +0x010 ProfileListHead : _LIST_ENTRY +0x018 DirectoryTableBase : [2] Uint4B +0x020 LdtDescriptor : _KGDTENTRY +0x028 Int21Descriptor : _KIDTENTRY +0x030 IopmOffset : Uint2B +0x032 Iopl : UChar +0x033 Unused : UChar +0x034 ActiveProcessors : Uint4B +0x038 KernelTime : Uint4B +0x03c UserTime : Uint4B +0x040 ReadyListHead : _LIST_ENTRY +0x048 SwapListEntry : _SINGLE_LIST_ENTRY +0x04c VdmTrapcHandler : Ptr32 Void +0x050 ThreadListHead : _LIST_ENTRY +0x058 ProcessLock : Uint4B +0x05c Affinity : Uint4B +0x060 StackCount : Uint2B +0x062 BasePriority : Char +0x063 ThreadQuantum : Char +0x064 AutoAlignment : UChar +0x065 State : UChar +0x066 ThreadSeed : UChar +0x067 DisableBoost : UChar +0x068 PowerState : UChar +0x069 DisableQuantum : UChar +0x06a IdealNode : UChar +0x06b Flags : _KEXECUTE_OPTIONS +0x06b ExecuteOptions : UChar
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1.3 _PEB结构
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67
| 0: kd> dt _PEB ntdll!_PEB +0x000 InheritedAddressSpace : UChar +0x001 ReadImageFileExecOptions : UChar +0x002 BeingDebugged : UChar +0x003 SpareBool : UChar +0x004 Mutant : Ptr32 Void +0x008 ImageBaseAddress : Ptr32 Void +0x00c Ldr : Ptr32 _PEB_LDR_DATA +0x010 ProcessParameters : Ptr32 _RTL_USER_PROCESS_PARAMETERS +0x014 SubSystemData : Ptr32 Void +0x018 ProcessHeap : Ptr32 Void +0x01c FastPebLock : Ptr32 _RTL_CRITICAL_SECTION +0x020 FastPebLockRoutine : Ptr32 Void +0x024 FastPebUnlockRoutine : Ptr32 Void +0x028 EnvironmentUpdateCount : Uint4B +0x02c KernelCallbackTable : Ptr32 Void +0x030 SystemReserved : [1] Uint4B +0x034 AtlThunkSListPtr32 : Uint4B +0x038 FreeList : Ptr32 _PEB_FREE_BLOCK +0x03c TlsExpansionCounter : Uint4B +0x040 TlsBitmap : Ptr32 Void +0x044 TlsBitmapBits : [2] Uint4B +0x04c ReadOnlySharedMemoryBase : Ptr32 Void +0x050 ReadOnlySharedMemoryHeap : Ptr32 Void +0x054 ReadOnlyStaticServerData : Ptr32 Ptr32 Void +0x058 AnsiCodePageData : Ptr32 Void +0x05c OemCodePageData : Ptr32 Void +0x060 UnicodeCaseTableData : Ptr32 Void +0x064 NumberOfProcessors : Uint4B +0x068 NtGlobalFlag : Uint4B +0x070 CriticalSectionTimeout : _LARGE_INTEGER +0x078 HeapSegmentReserve : Uint4B +0x07c HeapSegmentCommit : Uint4B +0x080 HeapDeCommitTotalFreeThreshold : Uint4B +0x084 HeapDeCommitFreeBlockThreshold : Uint4B +0x088 NumberOfHeaps : Uint4B +0x08c MaximumNumberOfHeaps : Uint4B +0x090 ProcessHeaps : Ptr32 Ptr32 Void +0x094 GdiSharedHandleTable : Ptr32 Void +0x098 ProcessStarterHelper : Ptr32 Void +0x09c GdiDCAttributeList : Uint4B +0x0a0 LoaderLock : Ptr32 Void +0x0a4 OSMajorVersion : Uint4B +0x0a8 OSMinorVersion : Uint4B +0x0ac OSBuildNumber : Uint2B +0x0ae OSCSDVersion : Uint2B +0x0b0 OSPlatformId : Uint4B +0x0b4 ImageSubsystem : Uint4B +0x0b8 ImageSubsystemMajorVersion : Uint4B +0x0bc ImageSubsystemMinorVersion : Uint4B +0x0c0 ImageProcessAffinityMask : Uint4B +0x0c4 GdiHandleBuffer : [34] Uint4B +0x14c PostProcessInitRoutine : Ptr32 void +0x150 TlsExpansionBitmap : Ptr32 Void +0x154 TlsExpansionBitmapBits : [32] Uint4B +0x1d4 SessionId : Uint4B +0x1d8 AppCompatFlags : _ULARGE_INTEGER +0x1e0 AppCompatFlagsUser : _ULARGE_INTEGER +0x1e8 pShimData : Ptr32 Void +0x1ec AppCompatInfo : Ptr32 Void +0x1f0 CSDVersion : _UNICODE_STRING +0x1f8 ActivationContextData : Ptr32 Void +0x1fc ProcessAssemblyStorageMap : Ptr32 Void +0x200 SystemDefaultActivationContextData : Ptr32 Void +0x204 SystemAssemblyStorageMap : Ptr32 Void +0x208 MinimumStackCommit : Uint4B
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1.4 _ETHREAD结构
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
| 0: kd> dt _ETHREAD ntdll!_ETHREAD +0x000 Tcb : _KTHREAD +0x1c0 CreateTime : _LARGE_INTEGER +0x1c0 NestedFaultCount : Pos 0, 2 Bits +0x1c0 ApcNeeded : Pos 2, 1 Bit +0x1c8 ExitTime : _LARGE_INTEGER +0x1c8 LpcReplyChain : _LIST_ENTRY +0x1c8 KeyedWaitChain : _LIST_ENTRY +0x1d0 ExitStatus : Int4B +0x1d0 OfsChain : Ptr32 Void +0x1d4 PostBlockList : _LIST_ENTRY +0x1dc TerminationPort : Ptr32 _TERMINATION_PORT +0x1dc ReaperLink : Ptr32 _ETHREAD +0x1dc KeyedWaitValue : Ptr32 Void +0x1e0 ActiveTimerListLock : Uint4B +0x1e4 ActiveTimerListHead : _LIST_ENTRY +0x1ec Cid : _CLIENT_ID +0x1f4 LpcReplySemaphore : _KSEMAPHORE +0x1f4 KeyedWaitSemaphore : _KSEMAPHORE +0x208 LpcReplyMessage : Ptr32 Void +0x208 LpcWaitingOnPort : Ptr32 Void +0x20c ImpersonationInfo : Ptr32 _PS_IMPERSONATION_INFORMATION +0x210 IrpList : _LIST_ENTRY +0x218 TopLevelIrp : Uint4B +0x21c DeviceToVerify : Ptr32 _DEVICE_OBJECT +0x220 ThreadsProcess : Ptr32 _EPROCESS +0x224 StartAddress : Ptr32 Void +0x228 Win32StartAddress : Ptr32 Void +0x228 LpcReceivedMessageId : Uint4B +0x22c ThreadListEntry : _LIST_ENTRY +0x234 RundownProtect : _EX_RUNDOWN_REF +0x238 ThreadLock : _EX_PUSH_LOCK +0x23c LpcReplyMessageId : Uint4B +0x240 ReadClusterSize : Uint4B +0x244 GrantedAccess : Uint4B +0x248 CrossThreadFlags : Uint4B +0x248 Terminated : Pos 0, 1 Bit +0x248 DeadThread : Pos 1, 1 Bit +0x248 HideFromDebugger : Pos 2, 1 Bit +0x248 ActiveImpersonationInfo : Pos 3, 1 Bit +0x248 SystemThread : Pos 4, 1 Bit +0x248 HardErrorsAreDisabled : Pos 5, 1 Bit +0x248 BreakOnTermination : Pos 6, 1 Bit +0x248 SkipCreationMsg : Pos 7, 1 Bit +0x248 SkipTerminationMsg : Pos 8, 1 Bit +0x24c SameThreadPassiveFlags : Uint4B +0x24c ActiveExWorker : Pos 0, 1 Bit +0x24c ExWorkerCanWaitUser : Pos 1, 1 Bit +0x24c MemoryMaker : Pos 2, 1 Bit +0x250 SameThreadApcFlags : Uint4B +0x250 LpcReceivedMsgIdValid : Pos 0, 1 Bit +0x250 LpcExitThreadCalled : Pos 1, 1 Bit +0x250 AddressSpaceOwner : Pos 2, 1 Bit +0x254 ForwardClusterOnly : UChar +0x255 DisablePageFaultClustering : UChar
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1.5 _KTHREAD结构
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
| 0: kd> dt _KTHREAD ntdll!_KTHREAD +0x000 Header : _DISPATCHER_HEADER +0x010 MutantListHead : _LIST_ENTRY +0x018 InitialStack : Ptr32 Void +0x01c StackLimit : Ptr32 Void +0x020 Teb : Ptr32 Void +0x024 TlsArray : Ptr32 Void +0x028 KernelStack : Ptr32 Void +0x02c DebugActive : UChar +0x02d State : UChar +0x02e Alerted : [2] UChar +0x030 Iopl : UChar +0x031 NpxState : UChar +0x032 Saturation : Char +0x033 Priority : Char +0x034 ApcState : _KAPC_STATE +0x04c ContextSwitches : Uint4B +0x050 IdleSwapBlock : UChar +0x051 Spare0 : [3] UChar +0x054 WaitStatus : Int4B +0x058 WaitIrql : UChar +0x059 WaitMode : Char +0x05a WaitNext : UChar +0x05b WaitReason : UChar +0x05c WaitBlockList : Ptr32 _KWAIT_BLOCK +0x060 WaitListEntry : _LIST_ENTRY +0x060 SwapListEntry : _SINGLE_LIST_ENTRY +0x068 WaitTime : Uint4B +0x06c BasePriority : Char +0x06d DecrementCount : UChar +0x06e PriorityDecrement : Char +0x06f Quantum : Char +0x070 WaitBlock : [4] _KWAIT_BLOCK +0x0d0 LegoData : Ptr32 Void +0x0d4 KernelApcDisable : Uint4B +0x0d8 UserAffinity : Uint4B +0x0dc SystemAffinityActive : UChar +0x0dd PowerState : UChar +0x0de NpxIrql : UChar +0x0df InitialNode : UChar +0x0e0 ServiceTable : Ptr32 Void +0x0e4 Queue : Ptr32 _KQUEUE +0x0e8 ApcQueueLock : Uint4B +0x0f0 Timer : _KTIMER +0x118 QueueListEntry : _LIST_ENTRY +0x120 SoftAffinity : Uint4B +0x124 Affinity : Uint4B +0x128 Preempted : UChar +0x129 ProcessReadyQueue : UChar +0x12a KernelStackResident : UChar +0x12b NextProcessor : UChar +0x12c CallbackStack : Ptr32 Void +0x130 Win32Thread : Ptr32 Void +0x134 TrapFrame : Ptr32 _KTRAP_FRAME +0x138 ApcStatePointer : [2] Ptr32 _KAPC_STATE +0x140 PreviousMode : Char +0x141 EnableStackSwap : UChar +0x142 LargeStack : UChar +0x143 ResourceIndex : UChar +0x144 KernelTime : Uint4B +0x148 UserTime : Uint4B +0x14c SavedApcState : _KAPC_STATE +0x164 Alertable : UChar +0x165 ApcStateIndex : UChar +0x166 ApcQueueable : UChar +0x167 AutoAlignment : UChar +0x168 StackBase : Ptr32 Void +0x16c SuspendApc : _KAPC +0x19c SuspendSemaphore : _KSEMAPHORE +0x1b0 ThreadListEntry : _LIST_ENTRY +0x1b8 FreezeCount : Char +0x1b9 SuspendCount : Char +0x1ba IdealProcessor : UChar +0x1bb DisableBoost : UChar
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1.6 _KAPC_STATE结构
_KAPC_STATE在KTHRESD的0x34偏移处,与APC相关。
1 2 3 4 5 6 7
| 0: kd> dt _KAPC_STATE ntdll!_KAPC_STATE +0x000 ApcListHead : [2] _LIST_ENTRY +0x010 Process : Ptr32 _KPROCESS +0x014 KernelApcInProgress : UChar +0x015 KernelApcPending : UChar +0x016 UserApcPending : UChar
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1.7 _KAPC结构
_KAPC在KTHREAD的16c偏移处。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
| 0: kd> dt _KAPC ntdll!_KAPC +0x000 Type : Int2B +0x002 Size : Int2B +0x004 Spare0 : Uint4B +0x008 Thread : Ptr32 _KTHREAD +0x00c ApcListEntry : _LIST_ENTRY +0x014 KernelRoutine : Ptr32 void +0x018 RundownRoutine : Ptr32 void +0x01c NormalRoutine : Ptr32 void +0x020 NormalContext : Ptr32 Void +0x024 SystemArgument1 : Ptr32 Void +0x028 SystemArgument2 : Ptr32 Void +0x02c ApcStateIndex : Char +0x02d ApcMode : Char +0x02e Inserted : UChar
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1.8 _TEB结构体
在_KTHREAD的0x20的偏移处,也是fs:[0]在三环指向的结构体。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68
| 0: kd> dt _TEB ntdll!_TEB +0x000 NtTib : _NT_TIB +0x01c EnvironmentPointer : Ptr32 Void +0x020 ClientId : _CLIENT_ID +0x028 ActiveRpcHandle : Ptr32 Void +0x02c ThreadLocalStoragePointer : Ptr32 Void +0x030 ProcessEnvironmentBlock : Ptr32 _PEB +0x034 LastErrorValue : Uint4B +0x038 CountOfOwnedCriticalSections : Uint4B +0x03c CsrClientThread : Ptr32 Void +0x040 Win32ThreadInfo : Ptr32 Void +0x044 User32Reserved : [26] Uint4B +0x0ac UserReserved : [5] Uint4B +0x0c0 WOW32Reserved : Ptr32 Void +0x0c4 CurrentLocale : Uint4B +0x0c8 FpSoftwareStatusRegister : Uint4B +0x0cc SystemReserved1 : [54] Ptr32 Void +0x1a4 ExceptionCode : Int4B +0x1a8 ActivationContextStack : _ACTIVATION_CONTEXT_STACK +0x1bc SpareBytes1 : [24] UChar +0x1d4 GdiTebBatch : _GDI_TEB_BATCH +0x6b4 RealClientId : _CLIENT_ID +0x6bc GdiCachedProcessHandle : Ptr32 Void +0x6c0 GdiClientPID : Uint4B +0x6c4 GdiClientTID : Uint4B +0x6c8 GdiThreadLocalInfo : Ptr32 Void +0x6cc Win32ClientInfo : [62] Uint4B +0x7c4 glDispatchTable : [233] Ptr32 Void +0xb68 glReserved1 : [29] Uint4B +0xbdc glReserved2 : Ptr32 Void +0xbe0 glSectionInfo : Ptr32 Void +0xbe4 glSection : Ptr32 Void +0xbe8 glTable : Ptr32 Void +0xbec glCurrentRC : Ptr32 Void +0xbf0 glContext : Ptr32 Void +0xbf4 LastStatusValue : Uint4B +0xbf8 StaticUnicodeString : _UNICODE_STRING +0xc00 StaticUnicodeBuffer : [261] Uint2B +0xe0c DeallocationStack : Ptr32 Void +0xe10 TlsSlots : [64] Ptr32 Void +0xf10 TlsLinks : _LIST_ENTRY +0xf18 Vdm : Ptr32 Void +0xf1c ReservedForNtRpc : Ptr32 Void +0xf20 DbgSsReserved : [2] Ptr32 Void +0xf28 HardErrorsAreDisabled : Uint4B +0xf2c Instrumentation : [16] Ptr32 Void +0xf6c WinSockData : Ptr32 Void +0xf70 GdiBatchCount : Uint4B +0xf74 InDbgPrint : UChar +0xf75 FreeStackOnTermination : UChar +0xf76 HasFiberData : UChar +0xf77 IdealProcessor : UChar +0xf78 Spare3 : Uint4B +0xf7c ReservedForPerf : Ptr32 Void +0xf80 ReservedForOle : Ptr32 Void +0xf84 WaitingOnLoaderLock : Uint4B +0xf88 Wx86Thread : _Wx86ThreadState +0xf94 TlsExpansionSlots : Ptr32 Ptr32 Void +0xf98 ImpersonationLocale : Uint4B +0xf9c IsImpersonating : Uint4B +0xfa0 NlsCache : Ptr32 Void +0xfa4 pShimData : Ptr32 Void +0xfa8 HeapVirtualAffinity : Uint4B +0xfac CurrentTransactionHandle : Ptr32 Void +0xfb0 ActiveFrame : Ptr32 _TEB_ACTIVE_FRAME +0xfb4 SafeThunkCall : UChar +0xfb5 BooleanSpare : [3] UChar
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1.9 _KTrap_Frame
_KTHREAD的0x134的偏移处 。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
| 0: kd> dt _KTrap_Frame ntdll!_KTRAP_FRAME +0x000 DbgEbp : Uint4B +0x004 DbgEip : Uint4B +0x008 DbgArgMark : Uint4B +0x00c DbgArgPointer : Uint4B +0x010 TempSegCs : Uint4B +0x014 TempEsp : Uint4B +0x018 Dr0 : Uint4B +0x01c Dr1 : Uint4B +0x020 Dr2 : Uint4B +0x024 Dr3 : Uint4B +0x028 Dr6 : Uint4B +0x02c Dr7 : Uint4B +0x030 SegGs : Uint4B +0x034 SegEs : Uint4B +0x038 SegDs : Uint4B +0x03c Edx : Uint4B +0x040 Ecx : Uint4B +0x044 Eax : Uint4B +0x048 PreviousPreviousMode : Uint4B +0x04c ExceptionList : Ptr32 _EXCEPTION_REGISTRATION_RECORD +0x050 SegFs : Uint4B +0x054 Edi : Uint4B +0x058 Esi : Uint4B +0x05c Ebx : Uint4B +0x060 Ebp : Uint4B +0x064 ErrCode : Uint4B +0x068 Eip : Uint4B +0x06c SegCs : Uint4B +0x070 EFlags : Uint4B +0x074 HardwareEsp : Uint4B +0x078 HardwareSegSs : Uint4B +0x07c V86Es : Uint4B +0x080 V86Ds : Uint4B +0x084 V86Fs : Uint4B +0x088 V86Gs : Uint4B
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1.10 _CONTEXT结构体
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
| 0: kd> dt _CONTEXT ntdll!_CONTEXT +0x000 ContextFlags : Uint4B +0x004 Dr0 : Uint4B +0x008 Dr1 : Uint4B +0x00c Dr2 : Uint4B +0x010 Dr3 : Uint4B +0x014 Dr6 : Uint4B +0x018 Dr7 : Uint4B +0x01c FloatSave : _FLOATING_SAVE_AREA +0x08c SegGs : Uint4B +0x090 SegFs : Uint4B +0x094 SegEs : Uint4B +0x098 SegDs : Uint4B +0x09c Edi : Uint4B +0x0a0 Esi : Uint4B +0x0a4 Ebx : Uint4B +0x0a8 Edx : Uint4B +0x0ac Ecx : Uint4B +0x0b0 Eax : Uint4B +0x0b4 Ebp : Uint4B +0x0b8 Eip : Uint4B +0x0bc SegCs : Uint4B +0x0c0 EFlags : Uint4B +0x0c4 Esp : Uint4B +0x0c8 SegSs : Uint4B +0x0cc ExtendedRegisters : [512] UChar
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1.11 _KPCR结构
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
| 0: kd> dt _KPCR nt!_KPCR +0x000 NtTib : _NT_TIB +0x01c SelfPcr : Ptr32 _KPCR +0x020 Prcb : Ptr32 _KPRCB +0x024 Irql : UChar +0x028 IRR : Uint4B +0x02c IrrActive : Uint4B +0x030 IDR : Uint4B +0x034 KdVersionBlock : Ptr32 Void +0x038 IDT : Ptr32 _KIDTENTRY +0x03c GDT : Ptr32 _KGDTENTRY +0x040 TSS : Ptr32 _KTSS +0x044 MajorVersion : Uint2B +0x046 MinorVersion : Uint2B +0x048 SetMember : Uint4B +0x04c StallScaleFactor : Uint4B +0x050 DebugActive : UChar +0x051 Number : UChar +0x052 Spare0 : UChar +0x053 SecondLevelCacheAssociativity : UChar +0x054 VdmAlert : Uint4B +0x058 KernelReserved : [14] Uint4B +0x090 SecondLevelCacheSize : Uint4B +0x094 HalReserved : [16] Uint4B +0x0d4 InterruptMode : Uint4B +0x0d8 Spare1 : UChar +0x0dc KernelReserved2 : [17] Uint4B +0x120 PrcbData : _KPRCB
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1.12 _NT_TIB结构
_NT_TIB在KPCR结构的0x0偏移处;也在 _TEB结构体结构的0x0偏移处。
1 2 3 4 5 6 7 8 9 10
| 0: kd> dt _NT_TIB ntdll!_NT_TIB +0x000 ExceptionList : Ptr32 _EXCEPTION_REGISTRATION_RECORD +0x004 StackBase : Ptr32 Void +0x008 StackLimit : Ptr32 Void +0x00c SubSystemTib : Ptr32 Void +0x010 FiberData : Ptr32 Void +0x010 Version : Uint4B +0x014 ArbitraryUserPointer : Ptr32 Void +0x018 Self : Ptr32 _NT_TIB
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1.13 _KPRCB结构
_KPRCB在_KPCR的0x120偏移处。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93
| 0: kd> dt _KPRCB ntdll!_KPRCB +0x000 MinorVersion : Uint2B +0x002 MajorVersion : Uint2B +0x004 CurrentThread : Ptr32 _KTHREAD +0x008 NextThread : Ptr32 _KTHREAD +0x00c IdleThread : Ptr32 _KTHREAD +0x010 Number : Char +0x011 Reserved : Char +0x012 BuildType : Uint2B +0x014 SetMember : Uint4B +0x018 CpuType : Char +0x019 CpuID : Char +0x01a CpuStep : Uint2B +0x01c ProcessorState : _KPROCESSOR_STATE +0x33c KernelReserved : [16] Uint4B +0x37c HalReserved : [16] Uint4B +0x3bc PrcbPad0 : [92] UChar +0x418 LockQueue : [16] _KSPIN_LOCK_QUEUE +0x498 PrcbPad1 : [8] UChar +0x4a0 NpxThread : Ptr32 _KTHREAD +0x4a4 InterruptCount : Uint4B +0x4a8 KernelTime : Uint4B +0x4ac UserTime : Uint4B +0x4b0 DpcTime : Uint4B +0x4b4 DebugDpcTime : Uint4B +0x4b8 InterruptTime : Uint4B +0x4bc AdjustDpcThreshold : Uint4B +0x4c0 PageColor : Uint4B +0x4c4 SkipTick : Uint4B +0x4c8 MultiThreadSetBusy : UChar +0x4c9 Spare2 : [3] UChar +0x4cc ParentNode : Ptr32 _KNODE +0x4d0 MultiThreadProcessorSet : Uint4B +0x4d4 MultiThreadSetMaster : Ptr32 _KPRCB +0x4d8 ThreadStartCount : [2] Uint4B +0x4e0 CcFastReadNoWait : Uint4B +0x4e4 CcFastReadWait : Uint4B +0x4e8 CcFastReadNotPossible : Uint4B +0x4ec CcCopyReadNoWait : Uint4B +0x4f0 CcCopyReadWait : Uint4B +0x4f4 CcCopyReadNoWaitMiss : Uint4B +0x4f8 KeAlignmentFixupCount : Uint4B +0x4fc KeContextSwitches : Uint4B +0x500 KeDcacheFlushCount : Uint4B +0x504 KeExceptionDispatchCount : Uint4B +0x508 KeFirstLevelTbFills : Uint4B +0x50c KeFloatingEmulationCount : Uint4B +0x510 KeIcacheFlushCount : Uint4B +0x514 KeSecondLevelTbFills : Uint4B +0x518 KeSystemCalls : Uint4B +0x51c SpareCounter0 : [1] Uint4B +0x520 PPLookasideList : [16] _PP_LOOKASIDE_LIST +0x5a0 PPNPagedLookasideList : [32] _PP_LOOKASIDE_LIST +0x6a0 PPPagedLookasideList : [32] _PP_LOOKASIDE_LIST +0x7a0 PacketBarrier : Uint4B +0x7a4 ReverseStall : Uint4B +0x7a8 IpiFrame : Ptr32 Void +0x7ac PrcbPad2 : [52] UChar +0x7e0 CurrentPacket : [3] Ptr32 Void +0x7ec TargetSet : Uint4B +0x7f0 WorkerRoutine : Ptr32 void +0x7f4 IpiFrozen : Uint4B +0x7f8 PrcbPad3 : [40] UChar +0x820 RequestSummary : Uint4B +0x824 SignalDone : Ptr32 _KPRCB +0x828 PrcbPad4 : [56] UChar +0x860 DpcListHead : _LIST_ENTRY +0x868 DpcStack : Ptr32 Void +0x86c DpcCount : Uint4B +0x870 DpcQueueDepth : Uint4B +0x874 DpcRoutineActive : Uint4B +0x878 DpcInterruptRequested : Uint4B +0x87c DpcLastCount : Uint4B +0x880 DpcRequestRate : Uint4B +0x884 MaximumDpcQueueDepth : Uint4B +0x888 MinimumDpcRate : Uint4B +0x88c QuantumEnd : Uint4B +0x890 PrcbPad5 : [16] UChar +0x8a0 DpcLock : Uint4B +0x8a4 PrcbPad6 : [28] UChar +0x8c0 CallDpc : _KDPC +0x8e0 ChainedInterruptList : Ptr32 Void +0x8e4 LookasideIrpFloat : Int4B +0x8e8 SpareFields0 : [6] Uint4B +0x900 VendorString : [13] UChar +0x90d InitialApicId : UChar +0x90e LogicalProcessorsPerPhysicalProcessor : UChar +0x910 MHz : Uint4B +0x914 FeatureBits : Uint4B +0x918 UpdateSignature : _LARGE_INTEGER +0x920 NpxSaveArea : _FX_SAVE_AREA +0xb30 PowerState : _PROCESSOR_POWER_STATE
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2 常见指令的含义
2.1 fs相关
2.1.1 fs:[0]在3环和0环的指向
fs:[0] 的指向:fs:[0]有两种情况,一种是在0环的情况下,指向KPCR结构体 。
1
| KPCR(0x0)->_NT_TIB(0x0)->_EXCEPTION_REGISTRATION_RECORD
|
在3环的情况下,指向Teb(KTHREAD的0x20偏移处)。
1
| KTHREAD(0x20)->Teb->(0x0)_NT_TIB结构
|
mov eax, large fs:20h ; 在0环中,eax = _KPCR._KPRCB
lea ecx, [eax+418h]
所以,mov eax, large fs:20h,是将_KPCR的地址传入到eax中,不是将地址中的值传到eax中。
fs:[124]: _KPCR.KTHREAD
2.1.2 3环中的fs:[18]
曾经,清也看见fs:[18]取_NT_TIB的地址的汇编指令时,会疑惑为什么不是用fs:[0]取,而是用fs:[18]取_NT_TIB.Self(0x18h)?
1 2
| mov eax, large fs:[18h]
|
原来
取出来的是_NT_TIB的0x0偏移处ExceptionList的内容,而不是地址,只有取到_NT_TIB结构体的地址,才能对结构体其他的成员内容进行修改。
而fs:[18h]处存放的就是_ETHREAD结构体的地址。
2.2 比较与跳转
CMP R/M,R/M/IMM
该指令是比较两个操作数,实际上,它相当于SUB指令,但是相减的结果并不保存到第一个操作数中。只是根据相减的结果来改变零标志位的,当两个操作数相等的时候,零标志位置1。
TEST指令:指令格式:TEST R/M,R/M/IMM
该指令在一定程序上和CMP指令是类似的(类似and),两个数值进行与操作,结果不保存,但是会改变相应标志位.
常见用法:用这个指令,可以确定某寄存器是否等于0。(test eax,eax 寄存器为0,零标志位置1)
2.3 中断相关
- cli; // 关闭中断
- sti; // 恢复中断
2.4 保存与恢复寄存器
保存:
- pushad; // esp - 0x20
- pushfd; // esp - 0x04
恢复:
3 不常见指令的分析
3.1 rep movsd
rep movsd(数据从源地址复制到目标地址,并且自动递增源和目标地址)
rep :重复指令,ecx计数,每执行一次ecx = ecx -1,直至ecx = 0 。
movs:传送( MOVSB 传送字符 。 MOVSW 传送字 。 MOVSD 传送双字 。)
源地址:esi
目的地址:edi
cld 设置方向标志位DF为0, 每次复制完, esi, edi自动增加, 指向下一个地址.
std 设置方向标志位DF为1, 每次复制完, esi, edi自动减少, 指向下一个地址.
4 系统服务号查询
x86系统服务号:
x64系统服务号: