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Memory\ZwQuerySystemInformation

Thread Status: Not open for further replies. The buffer receives a copy of the ComPlusPackage from the KUSER_SHARED_DATA except that if what’s there is (still) 0xFFFFFFFF, the kernel first clears it to 0 and then tries to load Revealing a kernel-mode address to a malicious user-mode caller is arguably not itself a security vulnerability, but it may help the latter’s success at attacking some other vulnerability. Microsoft has published symbol files that define a SYSTEM_CALL_TIME_INFORMATION structure, which would be curiously named if not to support this information class. my review here

Beware that the preceding paragraphs attempt only to describe what seems intended in general for the parameters and return value. Variable Information Inevitably, the information classes for which the information can vary in size from one call to another each have very different requirements of the SystemInformationLength and interpretations of what typedef struct _SYSTEM_BASIC_INFORMATION { BYTE Reserved1[24]; PVOID Reserved2[4]; CCHAR NumberOfProcessors; } SYSTEM_BASIC_INFORMATION; http://msdn2.microsoft.com/en-us/library/ms724509.aspx Google reveals that the page size is the third ULONG in the Reserved1 block of stuff and the The function writes to the information buffer while enumerating, for as long as space remains for each whole item. https://forums.techguy.org/threads/memory-zwquerysysteminformation.539696/

OSR, the Windows driver experts. This likely means that the inferred description is wrong or at least needs to be refined, but some cases seem so special that it seems reasonable to suspect that the defect Can this done programatically? SystemProcessorInformation (0x01) The information buffer must provide at least a SYSTEM_PROCESSOR_INFORMATION structure for the function to fill.

Control\SecurityProviders\SecurityProviders ' HKLM... If the information buffer does not have 8-byte alignment, the function fails, returning STATUS_DATATYPE_MISALIGNMENT. ZwQuerySystemInformation is one option using SystemBasicInformation, but I don't think it is a document DDI ! Thread Status: Not open for further replies.

SystemSessionProcessInformation (0x35) The information buffer must provide at least a SYSTEM_SESSION_PROCESS_INFORMATION structure as input. SystemDpcBehaviorInformation (0x18) The information buffer must provide exactly a SYSTEM_DPC_BEHAVIOR_INFORMATION structure for the function to fill. Message 10 of 11 29 Sep 0710:40 ntdev member 32707 [email protected] Join Date: Posts To This List: 141 How to find Physical Memory size from a boot time driver ? recommended you read If the buffer is too small for even one GROUP_AFFINITY in the ActiveProcessorsGroupAffinity array, the function sets the HighestNodeNumber in the buffer, sets the return length to that member’s size and

SystemProcessorBrandString (0x69) TO BE DONE SystemVirtualAddressInformation (0x6A) The information buffer must provide at least an array of six SYSTEM_VA_LIST_INFORMATION structures for the function to fill. The papers address all current topics in virtualization, attacks and defenses, host and network security, fraud detection and underground economy, web security, intrusion detection. SystemFlagsInformation (0x09) The information buffer must provide exactly a SYSTEM_FLAGS_INFORMATION structure for the function to fill. For output, the information buffer is to receive an irregularly spaced collection of these structures.

Adopting an approach that favors full disclosure,...https://books.google.se/books/about/The_Rootkit_Arsenal_Escape_and_Evasion_i.html?hl=sv&id=aJFVCnwNbMEC&utm_source=gb-gplus-shareThe Rootkit Arsenal: Escape and Evasion in the Dark Corners of the SystemMitt bibliotekHjälpAvancerad boksökningSkaffa tryckt exemplarInga e-böcker finns tillgängligaAmazon.co.ukAdlibrisAkademibokandelnBokus.seHitta boken i ett bibliotekAlla försäljare»Handla https://www.osronline.com/showthread.cfm?link=166192 The information buffer must provide exactly a SYSTEM_CODEINTEGRITY_INFORMATION structure for both input to and output from the CI callback function. (This structure is nowadays documented by Microsoft, apparently in full.) As Message 8 of 11 28 Sep 0711:29 ntdev member 36360 [email protected] Join Date: Posts To This List: 17 How to find Physical Memory size from a boot time driver ? A second dword provides a store information class.

It may take several posts to get the whole report sent over. Each of these can be followed by some number of SYSTEM_OBJECT_INFORMATION structures, one for each object of the corresponding type. The spacing is irregular because each such structure can be followed by varying numbers of other fixed-size structures and by variable-size data too: an array of SYSTEM_THREAD_INFORMATION structures, one for each In this case, the function sets the return length to the size that would be needed for the full description.

can't be interpreted." & vbCRLF & vbCRLF &_ strMsg,10,"Bad Script Argument", vbOKOnly + vbExclamation Else 'flagOut = "C" 'write the message to the console WScript.Echo vbCRLF & "The argument: " &_ Their integrity checker uses dynamic regions including a few DLLs, so making edits REALLY isn't favorable and certainly isn't future proof based on the growth of security in the last few Is there a safer way? > More specifically, I want to create a section object for caching in a > filter driver. This argument can be NULL if the caller does not want to know how much information is produced or is available.

Temporal Need:: On a PEA or 64bit system I would want to know what is the total amount of physical memory OS thinks it has. Microsoft documents one meaningful value: COMPLUS_ENABLE_64BIT (1). SystemStackTraceInformation (0x0D) The information buffer is to receive an RTL_PROCESS_BACKTRACES structure whose BackTraces array has an RTL_PROCESS_BACKTRACE_INFORMATION for each stack.

Startup/Shutdown, Logon/Logoff scripts (W2K/WXP/WVa) '11.

In Vista & Win7 other events exists, for more specific memory conditions. --pa Posting Rules You may not post new threads You may not post replies You may not post Each structure has the following layout: Copy typedef struct _SYSTEM_PROCESS_INFORMATION { ULONG NextEntryOffset; ULONG NumberOfThreads; BYTE Reserved1[48]; PVOID Reserved2[3]; HANDLE UniqueProcessId; PVOID Reserved3; ULONG HandleCount; BYTE Reserved4[4]; PVOID Reserved5[11]; SIZE_T PeakPagefileUsage; SystemSessionPoolTagInformation (0x43) TO BE DONE SystemSessionMappedViewInformation (0x44) The information buffer must provide at least a SYSTEM_SESSION_MAPPED_VIEW_INFORMATION structure for both input and output. Check us out.

The information that this function produces from enumerating a given type of item is not a snapshot of the state of all such items at any one time or during any the name of an existing directory for the output report" &_ vbCRLF & strLSp & "(embed in quotes if it contains spaces)" &_ vbCRLF & vbCRLF & strCSp & "AND:" & If an error occurs while enumerating, the function fails. It ordinarily is a self-consistent snapshot of the state of each item each at some time, but at different times for different items.

mm Message 3 of 11 28 Sep 0707:00 ntdev member 19760 [email protected] Join Date: Posts To This List: 2209 How to find Physical Memory size from a boot time Mostly, the structure has no other purpose. SystemObjectInformation (0x11) The information buffer is to receive a collection of irregularly spaced SYSTEM_OBJECTTYPE_INFORMATION structures, one for each type of object. SystemComPlusPackage (0x3B) The information buffer must provide exactly a ULONG for the function to set.

If given less for the information buffer but without having been asked for a return length, the function fails immediately, returning STATUS_INFO_LENGTH_MISMATCH. You might see if the registry key HKEY_LOCAL_MACHINE\HARDWARE\RESOURCEMAP\System Resources\Physical Memory is available early enough. Alternatively, you can read SharedUserData->NumberOfPhysicalPages, but this requires Windows XP or above and may be truncated. - Cay On Sun, 20 Sep 2009 13:22:05 +0200, wrote: > Thanks, > > SystemPerformanceInformation An opaque SYSTEM_PERFORMANCE_INFORMATION structure that can be used to generate an unpredictable seed for a random number generator.

I thought it returned an estimated amount, but it returns an enumerate. Keyboard Driver Filters '28. If the information buffer is too small to provide this EVENT_TRACE_INFORMATION_CLASS as input, the function returns STATUS_INVALID_PARAMETER. The other members of the structure are reserved for internal use by the operating system.

Before the function sets about producing this information, There are two variations from this shorthand: If the buffer is too small even for the formally defined structure, with its capacity for