dealer eprocess

There are a variety of English phrases in the post when there is a problem, which contains very important information, to understand the information can solve some of the small problems themselves, but these English baffled some of the friends, the following is some common BIOS interpretation, you can refer to. 1.CMOS Battery failed Chinese: CMOS battery failure. Explanation: This shows that the CMOS battery is running out of power, just replace the new battery. 2.CMOS Check sum error-defaul

solutions to implement this function: First, let's take a look at how the system detects permissions,For example, when OpenProcessToken is called, we know that the permission will be verified:OpenProcessToken-> NtOpenProcessToken-> PsOpenTokenOfProcess-> PsReferencePrimaryToken-> Find the Token = Process-> Token;|-> ObOpenObjectByPointer calls the TOKEN returned above to check That is to say, when the system detects the permission, it only obtains the Token item from the

1. Let's get a reputation. Functions (exported)// 1. 声明要使函数NTKERNELAPI NTSTATUS PsSuspendProcess(PEPROCESS pEProcess);NTKERNELAPI UCHAR* PsGetProcessImageFileName(IN PEPROCESS pEProcess);NTKERNELAPI NTSTATUS PsResumeProcess(PEPROCESS pEProcess);NTKERNELAPI HANDLE PsGetProcessInheritedFromUniqueProcessId(IN PEPROCESS pEProcess);According to the PID return process eprocess, the failure returns nullpeprocess lookupprocess (HANDLE hpid) {peprocess peproce

. This kind of search object is everywhere in the system, because in Windows NT/2000, all the operable data structures that require protection such as security_descriptor are treated as objects, for example, common process objects (eprocess/kpeb), thread objects (ETHREAD/kteb), and driver objects (driver_object. Of course, this tree structure organizes the kernel named objects. Another advantage is that all named objects are organized in a very organi

, so you 'd better not make any assumptions about it. However, it is okay to take a look, and you will not be pregnant. The following is the definition of the MDL data structure: // An MDL describes pages in a virtual buffer in terms // Of physical pages. The pages associated with // Buffer are described in an array that is allocated // Just after the MDL header structure itself. // // One simply calculates the base of the array // Adding one to the base MDL pointer: //

) pointing to the TLS callback function value from Teb (current thread environment block, obtained through FS register ). 3. check whether the TLS callback function array is empty. If it is not empty, the loader executes the callback function in sequence.Static TLS code;# Include "stdio. H "# include Can this method really play with the debugger? Obviously not. First, let's look at the process of creating a process 1. Open the image file to be executed in the process.First, the operating system

The following virtual memory can be understood as logical memory, because I think only in this way can we talk about everything below. The following "not paging" indicates that the page is not encoded. The following is the MDL struct (I am very depressed. I did not find this struct on msdn)Typedef struct _ MDL {Struct _ MDL * Next; // The next MDLCshort size; // sizeCshort mdlflags; // flag, protection attribute, etc.Struct _ eprocess * process ;//Pvo

command! Reload: Reload the symbol file.Pass! Thread and! Process to display the current process and thread. Or through DT nt! _ Kthread address and DT nt! _ Eprocess address to view the thread and process structure. Windbg provides a mechanism for Automatic Analysis of dump files. Run the command! Analyze-V and windbg can automatically perform analysis and display the following information:**************************************** *******************

1 kb virtual memory without reading/writing, and the system will not allocate any physical memory, the system allocates physical space only when the virtual memory is used.The following are some details. In fact, virtual memory management is implemented by a pile of data structures. The following describes the data structures:(If you are too lazy to play so many games, you can only play the important part ~~)There is a data structure in EPROCESS as f

MDL (Memory Descriptor List) refers to the Memory Descriptor table, which contains the starting address, owner process, number of bytes, and flag of the Memory region. The MDL structure is defined in ntddk. h. The specific structure is as follows: Typedef struct _ MDL { Struct _ MDL * Next; CSHORT Size; CSHORT MdlFlags; Struct _ EPROCESS * Process; PVOID MappedSystemVa; PVOID StartVa; ULONG ByteCount; ULONG ByteOffset; } MDL, * PMDL; To modify the mem

definitions has been completed. Note that the module name to be hooked is the variable pc_dlltar, and pc_fnctar is the target function to be hooked. The structure of pmdl is as follows: // MDL references defined in ntddk. hTypedef struct _ MDL {Struct _ MDL * next;Cshort size;Cshort mdlflags;Struct _ eprocess * process;Pvoid mappedsystemva;Pvoid startva;ULONG ByteCount;ULONG ByteOffset;} MDL, * PMDL;// MDL Flags MDL (Memory Descriptor List) Memory de

; // obtain the eprocess object objectstatus = processing (processhandle, process_all_access, psprocesstype, usermode, (pvoid *) Pprocess, null); If (objectstatus = STATUS_SUCCESS) {// processname = (char *) pprocess + 0X174; rtlstringcbcopya (processname, 16, (char *) pprocess + 0X174); _ strlwr (processname); // process name to lowercase if (strstr (processname, istme) {ntstatus allocstatus; uchar * baseaddr; size_t regionsize; ulong win32startaddr

OutputApplication_beginrequestGlobal_application_beginrequestApplication_authenticaterequestGlobal_application_authenticaterequestApplication_authorizerequestApplication_resolverequestcacheApplication_acquirerequeststateApplication_prerequesthandlerexecuteProcess all requests application_postrequesthandlerexecuteApplication_releaserequeststateApplication_endrequestApplication_presendrequestheadersWe can see that aspx requests are processed by handl

Vertarget displays general information about the current process. ! Peb display process environment Block Lmvm checks module loading information . Reload /! Sym load the symbol File LMF lists all modules loaded in the current process R: Display and modify register values D. display the value of the memory address. E. Modify the value of the memory address. ! Address: Display memory page information S search memory ! Runaway checks the CPU usage of the thread ~ Switch target thread Check callstac

commands. Be able to interpret the output of debugger commands and correlate them to the state of the system. Be able to navigate between different data structures in the kernel, using debugger commands. Be able to locate indicators of compromise while hunting for kernel mode malware. Understand how kernel mode rootkits interact with the system. PrerequisitesAttendees must has a solid understanding of operating system concepts and has a working knowledge of Windows. This co

than that. Oh, this function mainly does three things:(1) Get pointers to the debug process eprocess and Debug objects.(2) Send a fabricated debug event to the Debug object. (When the debugger attaches to a process that is already running, in order to report debug events that have occurred previously but still make sense to the debugger, the debug subsystem "fabricates" some debug events to simulate past debug events, such as debug messages that are

In the previous article Windows callback monitoring #pragmaOnce#include#include#includeVOID Wpoff (); VOID Wpon (); VOID unloaddriver (Pdriver_object driverobject); VOID loadimagenotifyroutine (punicode_string fullimagename,handle processid,pimage_info ImageInfor);externchar*psgetprocessimagefilename (peprocess eprocess); VOID Unicodetochar (punicode_string unisource, CHAR*szdest); #include"LoadImage.h"Pimage_import_descriptor G_oldimportdesc; KIRQL I

that is attached to the Vad tree represents this block of user-State address space has been allocated, so if there is no heap mechanism, every time to allocate memory to operate the VAD tree. This is very inefficient, VAD is the structure of the kernel, is attached to the eprocess of the corresponding process, want to learn more about the Windows Kernel memory management can be seen in the Windows Kernel scenario analysis book. In addition, many conc

In Windows 7, many kernel data structures have been changed, such as the eprocess offset. To use windbg for kernel debugging, do a few things 1. Run bcdedit-Debug on to enable debugging, and restart to take effect. 2. Download the symbol package to the http://www.microsoft.com/whdc/devtools/debugging/symbolpkg.mspx Windows 7 RC x86 retail symbols, All Versions 3. Add the Environment Variable _ nt_symbol_path as the installation path of the symb

Ntdll!_ethread+0x000 TCB: _kthread+0x200 createtime: _large_integer 0xff58b008+0x208 exittime: _large_integer 0x400000 ' 91334e00+0x208 keyedwaitchain: _list_entry [0x91334e00-0x400000] +0x210 exitstatus:800443912//Not 0 indicates end of thread+0x214 postblocklist: _list_entry [0x0-0x0]+0x214 Forwardlinkshadow: (NULL)+0x218 startaddress: (NULL)+0x21c terminationport:0x0000002c _termination_port+0x21c reaperlink:0x0000002c _ethread+0x21c keyedwaitvalue:0x0000002c+0x220 activetimerlistlock:0x590+0