dealer eprocess

logically-in order to start a process in kernel mode, the user must mount a driver, which in turn implies the execution of some user-mode code. Therefore, in order to prevent the execution of unauthorized programs, we can safely restrict the creation of processes that we control ourselves at the system level in user mode.Second,Defining PoliciesLet us first make it clear that the purpose of this is to monitor and control process creation at the system level.Process creation is quite a complex t

follows:typedefVOID(*pcreate_thread_notify_routine) (_in_ HANDLE ProcessId,_in_ HANDLE ThreadId,_in_ BOOLEAN Create);This makes it easy to see the process thread ID (handle). And the third Boolean indicates whether the creation succeeds or not is a yes or no selection.Here is the test codeProcessDrv.h:#include #define DPRINTF Dbgprint#defineDEVICE_NAMEL "\\Device\\monitor_create_process_x64"#define Link_namel "\\DosDevices\\monitor_create_process_x64"#define Link_global_namel "\\DosDevices\\Glo

Tags: tab address space IV use load required mode how user space1: Use!process 0 0 to get information about all the processes of the user space !process 0 0 NT ACTIVE PROCESS DUMP * * * *PROCESS 80a02a60 cid:0002 peb:00000000 parentcid:0000Dirbase:00006e05 objecttable:80a03788 tablesize:150.Image:system 。。。。。 2: Use the. process/p + you need to switch the eprocess address of the application to the address space of the application For example: . proce

AppContainer, determine whether the two meet the constraints of the SeIsParentOfChildAppContainer function. If the two meet the constraints, they are allowed. Otherwise, the AppContainer is den.Note: Both ProcessIntegrityLevel and IsAppContainer parameters are obtained from the EPROCESS-> Win32Process structure, which is an internal structure. SeIsParentOfChildAppContainer is an internal function in ntoskrnl.0x06 SummaryThis article details the secur

published exploit uses ZwAllocateVirtualMemoryAPI in 0xfffffffb to apply for memory and put a constructed win32k in this address! The tagWND struct. After the vulnerability is triggered, the kernel accesses the forged struct in this user mode. The constructed struct can change the program execution process and then execute a win32k! Function pointer in the tagWND struct. This function pointer points to a simple Kernel Mode shellcode: Replace the pointer to the Master card in the current

(int i = 0; i The code copies the handle from the parent process (this is the RPC caller) to the target process. Then write the copied handle value to the new process PEB? In the ProcessParameters structure, this can be extracted using the API, such as GetStdHandle. The handle value looks standardized in some way: It checks whether the low 2 bits of the handle are not set (the handle value is always a multiple of 4 in the NT architecture system ), but it also checks whether 29-bit is not set. F

Workaround: If you think your header file contains wood problems, try compiling it with the WDK build command, most likely because you haveVS + Easy SYSthe problem of the environmentThe use of the vs + easy SYS Build environment contains ke.h, which is a header file found on the web for use with eprocess and Ethread.In this environment, the compilation has been wrong. I have to say something loudly here:Mom B, how to flirt is not good ...As shown in t

details, in fact, the management of virtual memory is a bunch of data structures to achieve, the following gives the structure: (too lazy to hit so much only play an important part ~ ~) In Eprocess, there is a data structure as follows: typedef struct _MADDRESS_SPACE { pmemory_area memoryarearoot;// This pointer to a binary sorting tree, must have learned the data structure of friends know it ~ ~ Hey ~ ~ is mainly in this case, the use of binary

callbacks (the section ". A null pointer is placed in the CRT$XLZ ". Therefore, in order to ensure that the declared function pointer is inside the TLS callback array, it must be placed in the section. CRT$XLx "in.2.2 Specific implementation of the callback function 2.2.1 using isdebuggerpresent to detect the debuggerMicrosoft has provided us with an API function to detect whether the current program is being debugged, which is isdebuggerpresent (), and the implementation of this function is si

. ------------------------------------------------------------ The Process field in the MDL describing the user mode buffer points to the EPROCESS structure of the Process, and this virtual address space in the Process is locked by MDL. Live. If the buffer described by MDL is mapped to the kernel virtual address space, the MappedSystemVa field of _ MDL points to the base address of the kernel mode buffer. Only when the MDL_MAPPED_TO_SYSTEM_VA or M

show the object information to provide us with validation):Now, with the help of TestHandle.exe, we know that the number 38th handle is hevent:View the information for the 0x38 handle (this information is used by me as the "result" to verify my "inference" process): Inference steps To view the eprocess structure of Testhandle:Get Tablecode, this value points to a one-level, two-level, or three-level handle table (specifically, a few lev

. Text: 01002608 push edi. Text: 01002609 push dword_100CF24The debugport was frantically cleared.It even includes several locations, such as EPROCESS + 70 + 74 + 78.To download this attachment, debugport.jpg consumes 2Kx, which is automatically deducted from the download process.The processing method is usually to write FE to the 64 port, causing the computer to be restarted. Code:. Text: 01001665 mov al, 0FEh. Text: 01001667 out 64 h, al; AT Keyboar

First, the workaround: Suppose you think your header file contains wood problems, please compile with the WDK build command, most likely because you use theVS + Easy SYSthe problem of the environmentThe use of the vs + easy SYS Build environment includes Ke.h, which is a header file found on the web for use with eprocess and Ethread.In such an environment, the compilation has been wrong. Here I have to say something loudly:Mom B, how to flirt is not g

(Windows Manager), CDD.dll (Canonical display Driver), TSDDD.dll (Frame Buffer display Driver), Dxg.sys (DirectX Graphics Driver) and so on.For any process, the mm_session_space that its eprocess->session points to is the session structure to which it belongs, and the session pool is scoped by Mm_session_space->pagespoolstart and Mm_ Session_space->pagespoolend specified.System PTEs (Sys PTEs)This area includes the mapped view,mdl,adapter memory, the

0xb20 bytes, and the eight more bytes are pool_header structure, which is used for pool management. The structure of pool_header is as follows:+ 0x000 previussize: POS 0, 9 bits+ 0x000 poolindex: POS 9, 7 bits+ 0x002 blocksize: POS 0, 9 bits+ 0x002 pooltype: POS 9, 7 bits+ 0x000 ulong1: uint4b+ 0x004 processbilled: ptr32 _ eprocess+ 0x004 pooltag: uint4b+ 0x004 allocatorbacktraceindex: uint2b+ 0x006 pooltaghash: uint2bFor the pool in this range, the

infection code, a bunch of online. As long as it is not driven by the infection driver (more than a checksum), other properties are the same, look at their own play.(6)Interceptntcreateuserprocess,NtcreatesymboliclinkobjectThe former is only in Vista. After interceptionPslookupprocessthreadbycidGet ethread/eprocess and judge whether it isCSRSS. EXEIf a chunk of memory is allocated within this process space, the callNtgetcontextthreadGet the current t

. As for the infection code, a bunch of online. As long as it is not driven by the infection driver (more than a checksum), other properties are the same, look at their own play.(6)Interceptntcreateuserprocess,Ntcreatesymboliclinkobject The former is only in Vista. After interceptionPslookupprocessthreadbycidGet ethread/eprocess and judge whether it isCSRSS. EXEIf a chunk of memory is allocated within this process space, the callNtgetcontextthreadGet

specify which file is being mapped by the area, if any. a vma that does not map a file isAnonymous. Each memory segment above (E.g., Heap, stack) corresponds to a single VMA, with the exception of the memory mapping segment. this is not a requirement, though it is usual in x86 machines. VMAs do not care which segment they are in. A program's VMAs are stored in its memory descriptor both as a linked list in the MMAP field, ordered by starting virtual address, and as a red-black tree rooted at th

The previous section introduces the buffer-based read/write method. Let's take a look at the direct read/write method. 1. Directly read and write the device. The operating system locks the buffer in user mode, and then the operating system maps the buffer address in kernel mode again. In this way, the user-mode buffer and the kernel-mode buffer point to the physical memory in the same region. No matter how the operating system switches the process, the kernel mode address remains unchanged. Afte

implement the hook kernel API // Date: 2013/06/28 // parameter: processhandle: Process Handle exitstatus: // return value: // *********************************** ntstatus hookntterminateprocess (_ in_opt handle processhandle, __in ntstatus exitstatus) {ulong upid; ntstatus rtstatus; pchar pstrprocname; peprocess; ansi_string Str Procname; // obtain the fileobject corresponding to the process through the process handle. Because this is a process object, the