枚举PEB获取进程模块列表

枚举进程模块的方法有很多种，常见的有枚举PEB和内存搜索法，今天，先来看看实现起来最简单的枚举PEB实现获取进程模块列表。

首先，惯例是各种繁琐的结构体定义。需要包含 ntifs.h 和 WinDef.h, 此处不再列出，各位看官根据情况自行添加。

typedef PPEB (__stdcall *PFNPsGetProcessPeb)(PEPROCESS pEProcess);

typedef ULONG   PPS_POST_PROCESS_INIT_ROUTINE;

typedef struct _PEB_LDR_DATA {
BYTE       Reserved1[8];
PVOID      Reserved2[3];
LIST_ENTRY InMemoryOrderModuleList;
} PEB_LDR_DATA, *PPEB_LDR_DATA;

typedef struct _RTL_USER_PROCESS_PARAMETERS {
BYTE           Reserved1[16];
PVOID          Reserved2[10];
UNICODE_STRING ImagePathName;
UNICODE_STRING CommandLine;
} RTL_USER_PROCESS_PARAMETERS, *PRTL_USER_PROCESS_PARAMETERS;

typedef struct _PEB {
BYTE                          Reserved1[2];
BYTE                          BeingDebugged;
BYTE                          Reserved2[1];
PVOID                         Reserved3[2];
PPEB_LDR_DATA                 Ldr;
PRTL_USER_PROCESS_PARAMETERS  ProcessParameters;
BYTE                          Reserved4[104];
PVOID                         Reserved5[52];
PPS_POST_PROCESS_INIT_ROUTINE PostProcessInitRoutine;
BYTE                          Reserved6[128];
PVOID                         Reserved7[1];
ULONG                         SessionId;
} PEB, *PPEB;

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;

下面进入真正的实现代码：

NTSTATUS GetProcessModules(ULONG ulProcessId)
{
NTSTATUS nStatus;
//PEB结构指针
PPEB pPEB = NULL;

//EPROCESS结构指针
PEPROCESS  pEProcess = NULL;

//查找的函数名称
UNICODE_STRING uniFunctionName;

//进程参数信息
PRTL_USER_PROCESS_PARAMETERS pParam  = NULL;

//LDR数据结构
PPEB_LDR_DATA pPebLdrData = NULL;

//LDR链表入口
PLDR_DATA_TABLE_ENTRY pLdrDataEntry = NULL;

//链表头节点、尾节点
PLIST_ENTRY pListEntryStart = NULL;
PLIST_ENTRY pListEntryEnd = NULL;

//函数指针
PFNPsGetProcessPeb  PsGetProcessPeb = NULL;

//保存APC状态
KAPC_STATE KAPC ={0};

//是否已经附加到进程
BOOLEAN bIsAttached = FALSE;

//获取进程的EPROCESS结构指针
nStatus = PsLookupProcessByProcessId((HANDLE)ulProcessId, &pEProcess);
if (!NT_SUCCESS(nStatus))
{
return STATUS_UNSUCCESSFUL;
}

//查找函数地址
RtlInitUnicodeString(&uniFunctionName, L"PsGetProcessPeb");
PsGetProcessPeb = (PFNPsGetProcessPeb)MmGetSystemRoutineAddress(&uniFunctionName);
if (PsGetProcessPeb == NULL)
{
KdPrint(("Get PsGetProcessPeb Failed~!\n"));
return STATUS_UNSUCCESSFUL;
}

//获取PEB指针
pPEB = PsGetProcessPeb(pEProcess);
if (pPEB == NULL)
{
KdPrint(("Get pPEB Failed~!\n"));
return STATUS_UNSUCCESSFUL;
}

//附加到进程
KeStackAttachProcess(pEProcess, &KAPC);

bIsAttached = TRUE;

//指向LDR
pPebLdrData = pPEB->Ldr;

//头节点、尾节点
pListEntryStart = pListEntryEnd = pPebLdrData->InMemoryOrderModuleList.Flink;

//开始遍历_LDR_DATA_TABLE_ENTRY
do
{
//通过_LIST_ENTRY的Flink成员获取_LDR_DATA_TABLE_ENTRY结构
pLdrDataEntry = (PLDR_DATA_TABLE_ENTRY)CONTAINING_RECORD(pListEntryStart,LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks);

//输出DLL全路径
KdPrint(("%wZ \n", &pLdrDataEntry->FullDllName));

pListEntryStart = pListEntryStart->Flink;

}while(pListEntryStart != pListEntryEnd);

//Detach进程
if (bIsAttached != FALSE)
{
KeUnstackDetachProcess(&KAPC);
}

//减少引用计数
if (pEProcess != NULL)
{
ObDereferenceObject(pEProcess);
pEProcess = NULL;
}

return STATUS_SUCCESS;
}

下面是运行截图：



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