进程遍历(枚举)，模块遍历，线程遍历，进程链表，线程链表，模块链表

最新推荐文章于 2024-09-24 20:15:41 发布

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最新推荐文章于 2024-09-24 20:15:41 发布

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分类专栏： ntos 文章标签：进程遍历模块枚举 PEB NtQuerySystemInformation ZwQueryInformationProcess

本文链接：https://blog.youkuaiyun.com/fzy20062008/article/details/98709071

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本文详细介绍了在Windows环境下，如何利用系统API和内核功能遍历所有进程及其模块信息，包括使用NtQuerySystemInformation和NtQueryInformationProcess进行进程枚举，以及通过不同方法获取进程模块列表。

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关键字：

Peb.Ldr，PEB_LDR_DATA

NtQuerySystemInformation，ZwQueryInformationProcess，

CreateToolhelp32Snapshot，EnumProcesses，EnumProcessModules

ReadProcessMemory，NtReadProcessMemory

kernel32.dll，psapi.dll，ntdll.dll

PsIdleProcess

EPROCESS.Peb， EPROCESS.ActiveProcessLinks， EPROCESS.Pcb.ThreadListHead（即KPROCESS.ThreadListHead）

EPROCESS.ThreadListHead

NtQuerySystemInformation（从PsIdleProcess进程开始通过EPROCESS.ActiveProcessLinks遍历进程，通过EPROCESS.Pcb.ThreadListHead遍历线程）

NtQueryInformationProcess（通过ObReferenceObjectByHandle 得到EPORCESS再得到PEB，用于模块遍历）ObReferenceObjectByHandle（通过R3传过来的进程句柄得到EPROCESS）

NtReadProcessMemory（跨进程读PEB）

注意，如果是取自身进程的PEB地址，可以直接通过PTEB = fs:0x18，PPEB=PTEB->ProcessEnvironmentBlock或者PPEB=fs:0x30取得。无需跨进程读，也无需进内核（如GetModuleFileName就是如此）

typedef struct _PEB {
  BYTE                          Reserved1[2];
  BYTE                          BeingDebugged;
  BYTE                          Reserved2[1];
  PVOID                         Reserved3[2];
  PPEB_LDR_DATA                 Ldr;
  PRTL_USER_PROCESS_PARAMETERS  ProcessParameters;
  PVOID                         Reserved4[3];
  PVOID                         AtlThunkSListPtr;
  PVOID                         Reserved5;
  ULONG                         Reserved6;
  PVOID                         Reserved7;
  ULONG                         Reserved8;
  ULONG                         AtlThunkSListPtr32;
  PVOID                         Reserved9[45];
  BYTE                          Reserved10[96];
  PPS_POST_PROCESS_INIT_ROUTINE PostProcessInitRoutine;
  BYTE                          Reserved11[128];
  PVOID                         Reserved12[1];
  ULONG                         SessionId;
} PEB, *PPEB;

typedef struct _PEB_LDR_DATA  
{  
    DWORD Length;  
    UCHAR Initialized;  
    PVOID SsHandle;  
    LIST_ENTRY InLoadOrderModuleList;  
    LIST_ENTRY InMemoryOrderModuleList;  
    LIST_ENTRY InInitializationOrderModuleList;  
    PVOID EntryInProgress;  
}PEB_LDR_DATA,*PPEB_LDR_DATA;  

typedef struct _LDR_DATA_TABLE_ENTRY  
{  
    LIST_ENTRY InLoadOrderLinks;  
    LIST_ENTRY InMemoryOrderLinks;  
    LIST_ENTRY InInitializationOrderLinks;  
    PVOID DllBase;  
    PVOID EntryPoint;  
    DWORD SizeOfImage;  
    UNICODE_STRING FullDllName;  
    UNICODE_STRING BaseDllName;  
    DWORD Flags;  
    WORD LoadCount;  
    WORD TlsIndex;  
    LIST_ENTRY HashLinks;  
    PVOID SectionPointer;  
    DWORD CheckSum;  
    DWORD TimeDateStamp;  
    PVOID LoadedImports;  
    PVOID EntryPointActivationContext;  
    PVOID PatchInformation;  
}LDR_DATA_TABLE_ENTRY,*PLDR_DATA_TABLE_ENTRY;

获取所有进程信息
关键: NtQuerySystemInformation(ntdll.dll) ---> 内核通过EPROCESS.ActiveProcessLinks遍历，从PsIdleProcess开始
1. 进程枚举：
https://docs.microsoft.com/zh-cn/windows/win32/toolhelp/taking-a-snapshot-and-viewing-processes
https://docs.microsoft.com/zh-cn/windows/win32/toolhelp/traversing-the-thread-list
HANDLE CreateToolhelp32Snapshot(
DWORD dwFlags,
DWORD th32ProcessID
);
//th32ProcessID=0表示当前线程, CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
CreateToolhelp32Snapshot (kernel32.dll)
NtQuerySystemInformation (ntdll.dll)
------------------------------------------------------------------------------
NtQuerySystemInformation (ntoskrnl.exe) //EPROCESS.ActiveProcessLinks
ExpGetProcessInformation R0枚举所有进程(以及线程，直接通过EPROCESS.Pcb.ThreadListHead遍历线程)
PsGetNextProcess 直接通过EPROCESS.ActiveProcessLinks获取下一个进程

2. 进程id枚举：
https://docs.microsoft.com/en-us/windows/win32/psapi/enumerating-all-processes
BOOL EnumProcesses(
DWORD *lpidProcess,
DWORD cb,
LPDWORD lpcbNeeded
);
EnumProcesses (psapi.dll / kernle32.dll)
NtQuerySystemInformation (ntdll.dll)
------------------------------------------------------------------------------
NtQuerySystemInformation (ntoskrnl.exe) //EPROCESS.ActiveProcessLinks

3. 直接调用NtQuerySystemInformation(声明即可使用)/ZwQuerySystemInformation(GetProcAddress)
NTSTATUS NtQuerySystemInformation(
IN SYSTEM_INFORMATION_CLASS SystemInformationClass,
OUT PVOID SystemInformation,
IN ULONG SystemInformationLength,
OUT PULONG ReturnLength
);
NtQuerySystemInformation(SystemProcessInformation, ...); //SystemInformationClass.SystemProcessInformation = 5

获取单个进程信息(进程模块枚举)
关键: NtQueryInformationProcess(ntdll.dll) ---> 内核Handle->EPROCESS->Peb
//ProcessInformationClass .ProcessBasicInformation = 0
//(Retrieves a pointer to a PEB structure that can be used to determine whether the specified process is being debugged, and a unique value used by the system to identify the specified process. )

1. 调用EnumProcessModules获取所有模块
https://docs.microsoft.com/en-us/windows/win32/psapi/enumerating-all-modules-for-a-process
BOOL EnumProcessModules(
HANDLE hProcess,
HMODULE *lphModule,
DWORD cb,
LPDWORD lpcbNeeded
);
EnumProcessModules(psapi.dll / kernle32.dll)
NtQueryInformationProcess (ntdll.dll) and ReadProcessMemory (kernel32.dll)
------------------------------------------------------------------------------
NtQueryInformationProcess (ntoskrnl.exe)
ObReferenceObjectByHandle (Handle->EPORCESS->Peb)

2.
https://docs.microsoft.com/zh-cn/windows/win32/toolhelp/traversing-the-module-list
//CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, dwPID );
CreateToolhelp32Snapshot --> RtlQueryProcessDebugInformation(ntdll.dll) --> RtlQueryProcessModuleInformation --> LdrQueryProcessModuleInformationEx --> LdrQueryInLoadOrderModuleList
--> LdrQueryProcessPeb and LdrReadMemory
--> ZwQueryInformationProcess and NtReadVirtualMemory
------------------------------------------------------------------------------
NtQueryInformationProcess (ntoskrnl.exe)
ObReferenceObjectByHandle (Handle->EPORCESS->Peb)

3. 直接调用ZwQueryInformationProcess(声明即可使用)/NtQueryInformationProcess(GetProcAddress)
NTSTATUS WINAPI ZwQueryInformationProcess(
_In_ HANDLE ProcessHandle,
_In_ PROCESSINFOCLASS ProcessInformationClass,
_Out_ PVOID ProcessInformation,
_In_ ULONG ProcessInformationLength,
_Out_opt_ PULONG ReturnLength
);
ZwQueryInformationProcess(ProcessHandle, ProcessBasicInformation, ProcessInformation, ...);
ReadProcessMemory(ProcessInformation, ...);

4.
BOOL GetProcessInformation(
HANDLE hProcess,
PROCESS_INFORMATION_CLASS ProcessInformationClass,
LPVOID ProcessInformation,
DWORD ProcessInformationSize
);
(>win8)???

pid handle eprocess
1、pid->handle
OBJECT_ATTRIBUTES ObjectAttributes;
CLIENT_ID clientid;
InitializeObjectAttributes(&ObjectAttributes, 0 ,OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, 0, 0);
clientid.UniqueProcess = (HANDLE)pid;
clientid.UniqueThread=0;
ZwOpenProcess(&handle, PROCESS_ALL_ACCESS, &ObjectAttributes, &clientid);
handle即为所求

2、handle->pid
PROCESS_BASIC_INFORMATION pbi;
Status = ZwQueryInformationProcess(ProcessHandle, ProcessBasicInformation, (PVOID)&pbi, sizeof(ProcessBasicInformation), NULL);
pid = pbi.UniqueProcessId;
pid即为所求。

3、pid->eprocess
PEPROCESS process;
PsLookupProcessByProcessId((HANDLE)pid, &process);
ObDereferenceObject(process);
process即为所求eprocess的指针。

4、handle->eprocess
Status = ObReferenceObjectByHandle (ProcessHandle,
   PROCESS_TERMINATE,
   PsProcessType,
   KeGetPreviousModeByThread(&Self->Tcb),
   &Process,
   NULL);
或
handle->pid->eprocess。

5、eprocess->pid
_EPROCESS.UniqueProcessId即为所求，虽然声明类型为HANDLE，但实际上是pid

6、eprocess->handle
Status = ObOpenObjectByPointer(
   Process,
   Attributes,
   &AccessState,
   0,
   PsProcessType,
   PreviousMode,
   &Handle
);
或eprocess->pid->handle