Windows Security 4663 — Object access

Source and collection

Windows Event Log: Security; archived .evtx is binary, while this fixture is an XML event export.

Configure Audit File System or applicable object subcategory plus SACL. Read with Get-WinEvent and preserve provider, event ID, version, computer and record ID.

Native example and provenance

publisher documentation example. Published example; no independent capture provenance claimed.

Original publisher / pinned upstream fixture — preformatted example 1

Removed Event Viewer tree expansion markers before XML tags; field values unchanged.

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SHA-256: 92f9d59eef0a56e300832687a0c72fbcccebf022cdc7f5de9f4a7931d7bfa447

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
 <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" /> 
 <EventID>4663</EventID> 
 <Version>1</Version> 
 <Level>0</Level> 
 <Task>12800</Task> 
 <Opcode>0</Opcode> 
 <Keywords>0x8020000000000000</Keywords> 
 <TimeCreated SystemTime="2015-09-18T22:13:54.770429700Z" /> 
 <EventRecordID>273866</EventRecordID> 
 <Correlation /> 
 <Execution ProcessID="516" ThreadID="524" /> 
 <Channel>Security</Channel> 
 <Computer>DC01.contoso.local</Computer> 
 <Security /> 
 </System>
<EventData>
 <Data Name="SubjectUserSid">S-1-5-21-3457937927-2839227994-823803824-1104</Data> 
 <Data Name="SubjectUserName">dadmin</Data> 
 <Data Name="SubjectDomainName">CONTOSO</Data> 
 <Data Name="SubjectLogonId">0x4367b</Data> 
 <Data Name="ObjectServer">Security</Data> 
 <Data Name="ObjectType">File</Data> 
 <Data Name="ObjectName">C:\\Documents\\HBI Data.txt</Data> 
 <Data Name="HandleId">0x1bc</Data> 
 <Data Name="AccessList">%%4417 %%4418</Data> 
 <Data Name="AccessMask">0x6</Data> 
 <Data Name="ProcessId">0x458</Data> 
 <Data Name="ProcessName">C:\\Windows\\System32\\notepad.exe</Data> 
 <Data Name="ResourceAttributes">S:AI(RA;ID;;;;WD;("Impact\_MS",TI,0x10020,3000))</Data> 
 </EventData>
 </Event>

Structure and field interpretation

System/EventID

Event identifier within the named provider.

System/Version

Version of this event layout.

System/TimeCreated/@SystemTime

Event timestamp in UTC.

EventData

Named fields; use names, not positional array indices.

Relevant fields

ObjectName, AccessMask, ProcessName, SubjectLogonId

Investigation uses

• Inspect access to sensitive objects and correlate process ID, logon ID and object name.
• Compare event time with ingestion time and retain the original XML for a reviewable evidence trail.

Validation boundaries

Audit policy alone is insufficient without an applicable SACL; access does not establish exfiltration. This sample uses event version 1.

This sample passed byte-integrity and JSON/XML parsing checks, including the catalogue’s specified event discriminators. This is not a complete vendor-schema validation or a tested detection.

For a simulation, first parse this fixture offline, then create a separately labelled synthetic variant and test it against the intended collector in an isolated lab. Never replay public example identities or destinations into production.

Related sources

• Windows Security 4624 — Successful logon
• Windows Security 4625 — Failed logon
• Windows Security 4688 — Process creation
• Windows Security 4698 — Scheduled task created
• Windows Security 4720 — User account created
• Windows Security 4732 — Member added to local security group

Ecosystem connections

• Telemetry Library — ATT&CK data components
• Detection Rules — candidate detection content
• Threat hunting — from intelligence to validated defense
• Practical security learning paths
• AdversaryGraph — evidence-led investigation

References

• 4663(S) An attempt was made to access an object. - Windows 10 | Microsoft Learn

Sample provenance is linked above. Field availability and product behavior must be checked against the deployed version.