Windows内核基础之进程

1. 进程结构体EPROCESS

每个运行中的进程在Windows内核中都有一个EPROCESS的结构体,这个结构体包含了进程所有重要的信息。

在WinDbg中使用指令dt _EPROCESS可以查看进程结构体的所有成员。

nt!_EPROCESS
   +0x000 Pcb              : _KPROCESS
   +0x098 ProcessLock      : _EX_PUSH_LOCK
   +0x0a0 CreateTime       : _LARGE_INTEGER
   +0x0a8 ExitTime         : _LARGE_INTEGER
   +0x0b0 RundownProtect   : _EX_RUNDOWN_REF
   +0x0b4 UniqueProcessId  : Ptr32 Void
   +0x0b8 ActiveProcessLinks : _LIST_ENTRY
   +0x0c0 ProcessQuotaUsage : [2] Uint4B
   +0x0c8 ProcessQuotaPeak : [2] Uint4B
   +0x0d0 CommitCharge     : Uint4B
   +0x0d4 QuotaBlock       : Ptr32 _EPROCESS_QUOTA_BLOCK
   +0x0d8 CpuQuotaBlock    : Ptr32 _PS_CPU_QUOTA_BLOCK
   +0x0dc PeakVirtualSize  : Uint4B
   +0x0e0 VirtualSize      : Uint4B
   +0x0e4 SessionProcessLinks : _LIST_ENTRY
   +0x0ec DebugPort        : Ptr32 Void
   +0x0f0 ExceptionPortData : Ptr32 Void
   +0x0f0 ExceptionPortValue : Uint4B
   +0x0f0 ExceptionPortState : Pos 0, 3 Bits
   +0x0f4 ObjectTable      : Ptr32 _HANDLE_TABLE
   +0x0f8 Token            : _EX_FAST_REF
   +0x0fc WorkingSetPage   : Uint4B
   +0x100 AddressCreationLock : _EX_PUSH_LOCK
   +0x104 RotateInProgress : Ptr32 _ETHREAD
   +0x108 ForkInProgress   : Ptr32 _ETHREAD
   +0x10c HardwareTrigger  : Uint4B
   +0x110 PhysicalVadRoot  : Ptr32 _MM_AVL_TABLE
   +0x114 CloneRoot        : Ptr32 Void
   +0x118 NumberOfPrivatePages : Uint4B
   +0x11c NumberOfLockedPages : Uint4B
   +0x120 Win32Process     : Ptr32 Void
   +0x124 Job              : Ptr32 _EJOB
   +0x128 SectionObject    : Ptr32 Void
   +0x12c SectionBaseAddress : Ptr32 Void
   +0x130 Cookie           : Uint4B
   +0x134 Spare8           : Uint4B
   +0x138 WorkingSetWatch  : Ptr32 _PAGEFAULT_HISTORY
   +0x13c Win32WindowStation : Ptr32 Void
   +0x140 InheritedFromUniqueProcessId : Ptr32 Void
   +0x144 LdtInformation   : Ptr32 Void
   +0x148 VdmObjects       : Ptr32 Void
   +0x14c ConsoleHostProcess : Uint4B
   +0x150 DeviceMap        : Ptr32 Void
   +0x154 EtwDataSource    : Ptr32 Void
   +0x158 FreeTebHint      : Ptr32 Void
   +0x160 PageDirectoryPte : _HARDWARE_PTE
   +0x160 Filler           : Uint8B
   +0x168 Session          : Ptr32 Void
   +0x16c ImageFileName    : [15] UChar
   +0x17b PriorityClass    : UChar
   +0x17c JobLinks         : _LIST_ENTRY
   +0x184 LockedPagesList  : Ptr32 Void
   +0x188 ThreadListHead   : _LIST_ENTRY
   +0x190 SecurityPort     : Ptr32 Void
   +0x194 PaeTop           : Ptr32 Void
   +0x198 ActiveThreads    : Uint4B
   +0x19c ImagePathHash    : Uint4B
   +0x1a0 DefaultHardErrorProcessing : Uint4B
   +0x1a4 LastThreadExitStatus : Int4B
   +0x1a8 Peb              : Ptr32 _PEB
   +0x1ac PrefetchTrace    : _EX_FAST_REF
   +0x1b0 ReadOperationCount : _LARGE_INTEGER
   +0x1b8 WriteOperationCount : _LARGE_INTEGER
   +0x1c0 OtherOperationCount : _LARGE_INTEGER
   +0x1c8 ReadTransferCount : _LARGE_INTEGER
   +0x1d0 WriteTransferCount : _LARGE_INTEGER
   +0x1d8 OtherTransferCount : _LARGE_INTEGER
   +0x1e0 CommitChargeLimit : Uint4B
   +0x1e4 CommitChargePeak : Uint4B
   +0x1e8 AweInfo          : Ptr32 Void
   +0x1ec SeAuditProcessCreationInfo : _SE_AUDIT_PROCESS_CREATION_INFO
   +0x1f0 Vm               : _MMSUPPORT
   +0x25c MmProcessLinks   : _LIST_ENTRY
   +0x264 HighestUserAddress : Ptr32 Void
   +0x268 ModifiedPageCount : Uint4B
   +0x26c Flags2           : Uint4B
   +0x26c JobNotReallyActive : Pos 0, 1 Bit
   +0x26c AccountingFolded : Pos 1, 1 Bit
   +0x26c NewProcessReported : Pos 2, 1 Bit
   +0x26c ExitProcessReported : Pos 3, 1 Bit
   +0x26c ReportCommitChanges : Pos 4, 1 Bit
   +0x26c LastReportMemory : Pos 5, 1 Bit
   +0x26c ReportPhysicalPageChanges : Pos 6, 1 Bit
   +0x26c HandleTableRundown : Pos 7, 1 Bit
   +0x26c NeedsHandleRundown : Pos 8, 1 Bit
   +0x26c RefTraceEnabled  : Pos 9, 1 Bit
   +0x26c NumaAware        : Pos 10, 1 Bit
   +0x26c ProtectedProcess : Pos 11, 1 Bit
   +0x26c DefaultPagePriority : Pos 12, 3 Bits
   +0x26c PrimaryTokenFrozen : Pos 15, 1 Bit
   +0x26c ProcessVerifierTarget : Pos 16, 1 Bit
   +0x26c StackRandomizationDisabled : Pos 17, 1 Bit
   +0x26c AffinityPermanent : Pos 18, 1 Bit
   +0x26c AffinityUpdateEnable : Pos 19, 1 Bit
   +0x26c PropagateNode    : Pos 20, 1 Bit
   +0x26c ExplicitAffinity : Pos 21, 1 Bit
   +0x270 Flags            : Uint4B
   +0x270 CreateReported   : Pos 0, 1 Bit
   +0x270 NoDebugInherit   : Pos 1, 1 Bit
   +0x270 ProcessExiting   : Pos 2, 1 Bit
   +0x270 ProcessDelete    : Pos 3, 1 Bit
   +0x270 Wow64SplitPages  : Pos 4, 1 Bit
   +0x270 VmDeleted        : Pos 5, 1 Bit
   +0x270 OutswapEnabled   : Pos 6, 1 Bit
   +0x270 Outswapped       : Pos 7, 1 Bit
   +0x270 ForkFailed       : Pos 8, 1 Bit
   +0x270 Wow64VaSpace4Gb  : Pos 9, 1 Bit
   +0x270 AddressSpaceInitialized : Pos 10, 2 Bits
   +0x270 SetTimerResolution : Pos 12, 1 Bit
   +0x270 BreakOnTermination : Pos 13, 1 Bit
   +0x270 DeprioritizeViews : Pos 14, 1 Bit
   +0x270 WriteWatch       : Pos 15, 1 Bit
   +0x270 ProcessInSession : Pos 16, 1 Bit
   +0x270 OverrideAddressSpace : Pos 17, 1 Bit
   +0x270 HasAddressSpace  : Pos 18, 1 Bit
   +0x270 LaunchPrefetched : Pos 19, 1 Bit
   +0x270 InjectInpageErrors : Pos 20, 1 Bit
   +0x270 VmTopDown        : Pos 21, 1 Bit
   +0x270 ImageNotifyDone  : Pos 22, 1 Bit
   +0x270 PdeUpdateNeeded  : Pos 23, 1 Bit
   +0x270 VdmAllowed       : Pos 24, 1 Bit
   +0x270 CrossSessionCreate : Pos 25, 1 Bit
   +0x270 ProcessInserted  : Pos 26, 1 Bit
   +0x270 DefaultIoPriority : Pos 27, 3 Bits
   +0x270 ProcessSelfDelete : Pos 30, 1 Bit
   +0x270 SetTimerResolutionLink : Pos 31, 1 Bit
   +0x274 ExitStatus       : Int4B
   +0x278 VadRoot          : _MM_AVL_TABLE
   +0x298 AlpcContext      : _ALPC_PROCESS_CONTEXT
   +0x2a8 TimerResolutionLink : _LIST_ENTRY
   +0x2b0 RequestedTimerResolution : Uint4B
   +0x2b4 ActiveThreadsHighWatermark : Uint4B
   +0x2b8 SmallestTimerResolution : Uint4B
   +0x2bc TimerResolutionStackRecord : Ptr32 _PO_DIAG_STACK_RECORD

+0x0a0 CreateTime:进程创建时间

+0x0a8 ExitTime:进程退出时间

+0x0b4 UniqueProcessId:进程的编号,也就是PID

+0x0b8 ActiveProcessLinks:双向链表,将所有进程都连接起来,全局变量PsActiveProcessHead指向链表头,通过dd PsActiveProcessHead可以查看链表,通过dt _EPROCESS 863b78b9-b8可以访问某一个进程,863b78b9是链表中某一个进程的值,-b8是因为链表连接的是0xb8处,-b8才可以找到进程的起始位置

+0x0c0 QuotaUsage
+0x0c8 QuotaPeak
物理页相关的统计信息,记录了进程实际使用的物理内存的信息

+0x0d0 CommitCharge
+0x0ec PeakVirtualSize
+0x0e0 VirtualSize
虚拟内存相关的统计信息

+0x0ec DebugPort
+0x0f0 ExceptionPortData : Ptr32 Void
+0x0f0 ExceptionPortValue : Uint4B
+0x0f0 ExceptionPortState : Pos 0, 3 Bits

调试相关,有一种反调试技术是DebugPort清零,DebugPort是调试器跟进程进行通信的桥梁,一旦不停地清零就无法进行调试了

+0x0f4 ObjectTable:句柄表,存储了跟进程相关的对象的句柄,可以用于反调试,通过遍历其他进程的句柄表,如果发现本进程的句柄就可以认为正在被调试

+0x278 VadRoot:标记0-2G空间分配和未分配区域,它是一个平衡二叉树

+0x16c ImageFileName:进程镜像文件名

+0x198 ActiveThreads:活动线程的数量

2. KPROCESS

EPROCESS的+0x000处是Pcb,它的类型是KPROCESS,使用dt _KPROCESS指令可以查看KPROCESS的成员:

nt!_KPROCESS
   +0x000 Header           : _DISPATCHER_HEADER
   +0x010 ProfileListHead  : _LIST_ENTRY
   +0x018 DirectoryTableBase : Uint4B
   +0x01c LdtDescriptor    : _KGDTENTRY
   +0x024 Int21Descriptor  : _KIDTENTRY
   +0x02c ThreadListHead   : _LIST_ENTRY
   +0x034 ProcessLock      : Uint4B
   +0x038 Affinity         : _KAFFINITY_EX
   +0x044 ReadyListHead    : _LIST_ENTRY
   +0x04c SwapListEntry    : _SINGLE_LIST_ENTRY
   +0x050 ActiveProcessors : _KAFFINITY_EX
   +0x05c AutoAlignment    : Pos 0, 1 Bit
   +0x05c DisableBoost     : Pos 1, 1 Bit
   +0x05c DisableQuantum   : Pos 2, 1 Bit
   +0x05c ActiveGroupsMask : Pos 3, 1 Bit
   +0x05c ReservedFlags    : Pos 4, 28 Bits
   +0x05c ProcessFlags     : Int4B
   +0x060 BasePriority     : Char
   +0x061 QuantumReset     : Char
   +0x062 Visited          : UChar
   +0x063 Unused3          : UChar
   +0x064 ThreadSeed       : [1] Uint4B
   +0x068 IdealNode        : [1] Uint2B
   +0x06a IdealGlobalNode  : Uint2B
   +0x06c Flags            : _KEXECUTE_OPTIONS
   +0x06d Unused1          : UChar
   +0x06e IopmOffset       : Uint2B
   +0x070 Unused4          : Uint4B
   +0x074 StackCount       : _KSTACK_COUNT
   +0x078 ProcessListEntry : _LIST_ENTRY
   +0x080 CycleTime        : Uint8B
   +0x088 KernelTime       : Uint4B
   +0x08c UserTime         : Uint4B
   +0x090 VdmTrapcHandler  : Ptr32 Void

+0x000 Header:可等待对象,只要有这个成员都是可以被WaitForSingleObject()等待的

+0x018 DirectoryTableBase:页目录基址,分页转换从这里开始,CR3寄存器里保存的就是这个值,所谓进程切换就是切换这个值

+0x038 Affinity:规定进程所有的线程可以在哪个CPU上跑,如果值为1(00000001),只能在0号CPU中跑,如果值为3(00000011),可以在0-1号上跑,4个字节最多允许32个核

+0x060 BasePriority:最低优先级,在该进程中创建线程时都会参考这个成员,用于设置线程的优先级

+0x088 KernelTime:进程在内核模式中所花的时间

+0x08c UserTime:进程在用户模式中所花的时间

3. PEB

在EPROCESS的+0x1a8处有一个结构体PEB,PEB是进程环境块,它虽然属于EPROCESS,但是存在于3环,

nt!_PEB
   +0x000 InheritedAddressSpace : UChar
   +0x001 ReadImageFileExecOptions : UChar
   +0x002 BeingDebugged    : UChar
   +0x003 BitField         : UChar
   +0x003 ImageUsesLargePages : Pos 0, 1 Bit
   +0x003 IsProtectedProcess : Pos 1, 1 Bit
   +0x003 IsLegacyProcess  : Pos 2, 1 Bit
   +0x003 IsImageDynamicallyRelocated : Pos 3, 1 Bit
   +0x003 SkipPatchingUser32Forwarders : Pos 4, 1 Bit
   +0x003 SpareBits        : Pos 5, 3 Bits
   +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 AtlThunkSListPtr : Ptr32 Void
   +0x024 IFEOKey          : Ptr32 Void
   +0x028 CrossProcessFlags : Uint4B
   +0x028 ProcessInJob     : Pos 0, 1 Bit
   +0x028 ProcessInitializing : Pos 1, 1 Bit
   +0x028 ProcessUsingVEH  : Pos 2, 1 Bit
   +0x028 ProcessUsingVCH  : Pos 3, 1 Bit
   +0x028 ProcessUsingFTH  : Pos 4, 1 Bit
   +0x028 ReservedBits0    : Pos 5, 27 Bits
   +0x02c KernelCallbackTable : Ptr32 Void
   +0x02c UserSharedInfoPtr : Ptr32 Void
   +0x030 SystemReserved   : [1] Uint4B
   +0x034 AtlThunkSListPtr32 : Uint4B
   +0x038 ApiSetMap        : Ptr32 Void
   +0x03c TlsExpansionCounter : Uint4B
   +0x040 TlsBitmap        : Ptr32 Void
   +0x044 TlsBitmapBits    : [2] Uint4B
   +0x04c ReadOnlySharedMemoryBase : Ptr32 Void
   +0x050 HotpatchInformation : 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 _RTL_CRITICAL_SECTION
   +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 ActiveProcessAffinityMask : 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 _ACTIVATION_CONTEXT_DATA
   +0x1fc ProcessAssemblyStorageMap : Ptr32 _ASSEMBLY_STORAGE_MAP
   +0x200 SystemDefaultActivationContextData : Ptr32 _ACTIVATION_CONTEXT_DATA
   +0x204 SystemAssemblyStorageMap : Ptr32 _ASSEMBLY_STORAGE_MAP
   +0x208 MinimumStackCommit : Uint4B
   +0x20c FlsCallback      : Ptr32 _FLS_CALLBACK_INFO
   +0x210 FlsListHead      : _LIST_ENTRY
   +0x218 FlsBitmap        : Ptr32 Void
   +0x21c FlsBitmapBits    : [4] Uint4B
   +0x22c FlsHighIndex     : Uint4B
   +0x230 WerRegistrationData : Ptr32 Void
   +0x234 WerShipAssertPtr : Ptr32 Void
   +0x238 pContextData     : Ptr32 Void
   +0x23c pImageHeaderHash : Ptr32 Void
   +0x240 TracingFlags     : Uint4B
   +0x240 HeapTracingEnabled : Pos 0, 1 Bit
   +0x240 CritSecTracingEnabled : Pos 1, 1 Bit
   +0x240 SpareTracingBits : Pos 2, 30 Bits

+0x002 BegingDebugged:记录了调试状态,如果当前进程被调试置1

+0x00c Ldr:结构体_PEB_LDR_DATA,这个结构体内部记录了进程的模块链表
Windows内核基础之进程_第1张图片
InLoadOrderModuleList:按模块上载的顺序排列
InMemoryOrderModuleList:按模块在内存中的顺序排列
InInitializationOrderModuleList:按模块初始化的顺序排列

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