PAGE:005315DA mov eax, large fs:124h ; 得到当前线程 _KTHREAD 结构体的指针
PAGE:005315E0 xor edx, edx
PAGE:005315E2 cmp [eax+0D7h], dl ; 比较当前线程之前模式是否为0环，比较_KTHREAD->PreviousMode中的值
PAGE:005315E8 jz short loc_53161F ; 之前运行模式在0环下，跳走
PAGE:005315EA mov [ebp+ms_exc.disabled], edx
PAGE:005315ED mov ecx, [ebp+ProcessHandle] ; 取得句柄值地址
PAGE:005315F0 mov eax, _MmUserProbeAddress ; 获得允许的用户空间大小
PAGE:005315F5 cmp ecx, eax ; 比较句柄地址是否超过用户空间大小
PAGE:005315F7 jb short loc_5315FB
PAGE:005315F9 mov [eax], edx
PAGE:005315FB
PAGE:005315FB loc_5315FB: ; CODE XREF: NtCreateProcessEx(x,x,x,x,x,x,x,x,x)+29 j
PAGE:005315FB mov eax, [ecx] 检测地址是否可读
PAGE:005315FD mov [ecx], eax ; 检测地址是否可写
PAGE:005315FF or [ebp+ms_exc.disabled], 0FFFFFFFFh
PAGE:005300DB mov eax, large fs:124h ; 得到 _KTHREAD 结构体指针
PAGE:005300E1 mov [ebp+CurrentThread], eax ; 保存到局部变量 CurrentThread 中
PAGE:005300E4 mov cl, [eax+_KTHREAD.___u33._s2.PreviousMode] ; 获得前一种运行模式
PAGE:005300EA mov byte ptr [ebp+PreviousMode], cl
PAGE:005300ED mov eax, [eax+_KTHREAD.___u6.ApcState.Process] ; 得到 _KPROCESS 结构体指针
PAGE:005300F0 mov [ebp+CurrentProcess], eax
PAGE:0053010A cmp [ebp+ParentProcess], ebx ; 比较父进程句柄是否为0
PAGE:0053010D jz short loc_530161
PAGE:0053010F push ebx ; HandleInformation
PAGE:00530110 lea eax, [ebp+ParentEPROCESS] ; 父进程 PEPROCESS
PAGE:00530116 push eax ; Object
PAGE:00530117 push [ebp+PreviousMode] ; AccessMode
PAGE:0053011A push _PsProcessType ; ObjectType
PAGE:00530120 push PROCESS_CREATE_PROCESS ; DesiredAccess
PAGE:00530125 push [ebp+ParentProcess] ; Handle
PAGE:00530128 call _ObReferenceObjectByHandle@24 ; 根据父进程句柄获取其EPROCESS
PAGE:0053016B mov [ebp+Affinity], eax ; 可以运行在父进程job的各个处理器上
PAGE:0053016E mov eax, ds:_PsMinimumWorkingSet ; 设置工作集最小数
PAGE:00530173 mov [ebp+WorkingSetMinimum], eax
PAGE:00530176 mov eax, ds:_PsMaximumWorkingSet ; 设置工作集最大数
PAGE:0053017B mov [ebp+WorkingSetMaximum], eax
PAGE:00530181 push eax ; Object
PAGE:00530182 push ebx ; NonPagedPoolCharge
PAGE:00530183 push ebx ; PagedPoolCharge
PAGE:00530184 push 278h ; ObjectBodySize
PAGE:00530189 push ebx ; ParseContext
PAGE:0053018A push [ebp+PreviousMode] ; OwnershipMode
PAGE:0053018D push [ebp+ObjectAttributes] ; ObjectAttributes
PAGE:00530190 push _PsProcessType ; ObjectType
PAGE:00530196 push [ebp+PreviousMode] ; ProbeMode
PAGE:00530199 call _ObCreateObject@36 ; 创建进程 _EPROCESS
PAGE:005301A8 mov ecx, 9Eh ; <- 设置Process指向的EPROCESS结构为全0
PAGE:005301AD xor eax, eax
PAGE:005301AF mov ebx, [ebp+Process]
PAGE:005301B2 mov edi, ebx
PAGE:005301B4 rep stosd ; - >
PAGE:005301B6 and dword ptr [ebx+_EPROCESS.RundownProtect.___u0], eax ; ExInitializeRundownProtection (&Process->RundownProtect);
PAGE:005301BC and [ebx+_EPROCESS.ProcessLock.___u0.Value], eax ; PspInitializeProcessLock (Process);
PAGE:005301BF lea eax, [ebx+_EPROCESS.ThreadListHead] ; <- 初始化EPROCESS线程链表头
PAGE:005301C5 mov [eax+4], eax
PAGE:005301C8 mov [eax], eax ; - >
PAGE:005301CA push esi ; ParentProcess
PAGE:005301CB push ebx ; NewProcess
PAGE:005301CC call _PspInheritQuota@8 ; 继承资源配额
PAGE:005301D1 push esi ; ParentProcess
PAGE:005301D2 push ebx ; NewProcess
PAGE:005301D3 call _ObInheritDeviceMap@8 ; 继承父进程的设备位图
PAGE:005301DC mov eax, [esi+_EPROCESS.DefaultHardErrorProcessing]
PAGE:005301E2 mov [ebx+_EPROCESS.DefaultHardErrorProcessing], eax ; 子进程继承父进程的DefaultHardErrorProcessing
PAGE:005301E8 mov eax, [esi+_EPROCESS.UniqueProcessId]
PAGE:005301EE mov [ebx+_EPROCESS.InheritedFromUniqueProcessId], eax ; 子进程继承父进程的InheritedFromUniqueProcessId
PAGE:00530211 push 0 ; HandleInformation
PAGE:00530213 lea eax, [ebp+SectionObj]
PAGE:00530219 push eax ; Object
PAGE:0053021A push [ebp+PreviousMode] ; AccessMode
PAGE:0053021D push _MmSectionObjectType ; ObjectType
PAGE:00530223 push 8 ; DesiredAccess
PAGE:00530225 push [ebp+SectionHandle] ; Handle
PAGE:00530228 call _ObReferenceObjectByHandle@24 ;
PAGE:00530243 mov eax, [ebp+SectionObject]
PAGE:00530246 mov [ebx+_EPROCESS.SectionObject], eax
PAGE:0053024C cmp [ebp+DebugPort], 0 ; 调试端口句柄不为空，说明处于调试状态
PAGE:00530250 jz DEBUGPORT_NULL
PAGE:00530256 push 0 ; HandleInformation
PAGE:00530258 lea eax, [ebp+DebugPortObj]
PAGE:0053025B push eax ; Object
PAGE:0053025C push [ebp+PreviousMode] ; AccessMode
PAGE:0053025F push _DbgkDebugObjectType ; ObjectType
PAGE:00530265 push 2 ; DesiredAccess = DEBUG_PROCESS_ASSIGN
PAGE:00530267 push [ebp+DebugPort] ; Handle
PAGE:0053026A call _ObReferenceObjectByHandle@24 ; 获取调试端口对象
PAGE:0053026F mov edi, eax
PAGE:00530271 test edi, edi
PAGE:00530273 jl exit_and_deref
PAGE:00530279 mov eax, [ebp+DebugPortObj]
PAGE:0053027C mov [ebx+_EPROCESS.DebugPort], eax ;初始化新进程调试端口
PAGE:00530297 cmp [ebp+ExceptionPort], 0 ; 异常端口不为空获取异常端口对象
PAGE:0053029B jz short EXCEPTIONPORT_NULL
PAGE:0053029D push 0 ; HandleInformation
PAGE:0053029F lea eax, [ebp+ExceptionPortObject]
PAGE:005302A2 push eax ; Object
PAGE:005302A3 push [ebp+PreviousMode] ; AccessMode
PAGE:005302A6 push _LpcPortObjectType ; ObjectType
PAGE:005302AC push 0 ; DesiredAccess
PAGE:005302AE push [ebp+ExceptionPort] ; Handle
PAGE:005302B1 call _ObReferenceObjectByHandle@24 ; 获取异常端口对象
PAGE:005302B6 mov edi, eax
PAGE:005302B8 test edi, edi
PAGE:005302BA jl exit_and_deref
PAGE:005302C0 mov eax, [ebp+ExceptionPortObject]
PAGE:005302C3 mov [ebx+_EPROCESS.ExceptionPort], eax
PAGE:005302DE lea eax, [ebp+DirectoryTableBase]
PAGE:005302E1 push eax ; DirectoryTableBase
PAGE:005302E2 push ebx ; NewProcess
PAGE:005302E3 push [ebp+WorkingSetMinimum] ; MinimumWorkingSetSize
PAGE:005302E6 call _MmCreateProcessAddressSpace@12 ;
[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)
