能力值:
( LV5,RANK:60 )
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2 楼
typedef struct _TEB {
BYTE Reserved1[1952];
PVOID Reserved2[412];
PVOID TlsSlots[64];
BYTE Reserved3[8];
PVOID Reserved4[26];
PVOID ReservedForOle; // Windows 2000 only
PVOID Reserved5[4];
PVOID TlsExpansionSlots;
} TEB;
这是TEB的结构
rep movsb就是移动了400h的数据,从esi指向的buff到edi指向的buff
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能力值:
( LV2,RANK:10 )
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3 楼
mov eax, fs:30h 获得PEB指针
这段代码大概意思是:
从esi开始的地址拷贝400h字节到PEB偏移800h的位置
PEB占据一个页面4kb,但sizeof(peb)远小于4kb,剩下的空间系统用来保存堆的指针了,上面的代码应该是拷贝了100个堆指针到PEB
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能力值:
( LV2,RANK:10 )
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4 楼
rep movsb是指把esi指向的数据拷贝到了edi指向的地址么?一共进行400h次
不知这样理解是否正确
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能力值:
( LV4,RANK:50 )
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5 楼
+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
以上的是TEB,LZ的那个应该是PEB,TEB偏移0X30的地方为PEB,这个地址应该是找的一段空数据地址
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能力值:
( LV2,RANK:10 )
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6 楼
是这样是这样,不够字数
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