Event Details
Operating System->Microsoft Windows->Built-in logs->Windows 2008 or higher->Security Log->Object Access->Detailed File Share->EventID 5145 - A network share object was checked to see whether client can be granted desired access.
EventID 5145 - A network share object was checked to see whether client can be granted desired access.
High volume on a file server or domain controller because of SYSVOL network access required by Group Policy

Note:
If Audit Detailed File Share policy setting is configured, the following event is generated. The event appears on computers running Windows Server 2008 R2 or Windows 7.

Find more information about this event on ultimatewindowssecurity.com.
 Sample: 
A network share object was checked to see whether client can be granted desired access.
	
Subject:
	Security ID:		NT AUTHORITY\SYSTEM
	Account Name:		IIZHU6$
	Account Domain:		ITSS
	Logon ID:		0x3a4a7dff

Network Information:	
	Object Type:		File
	Source Address:		fe80::30da:ce49:ec87:9583
	Source Port:		59095
	
Share Information:
	Share Name:		\\*\SYSVOL
	Share Path:		\??\C:\Windows\SYSVOL\sysvol
	Relative Target Name:	ITSS.WM.ZHU.CN.QSFT\POLICIES\{31B2F340-016D-11D2-945F-00C04FB984F9}\MACHINE\Microsoft\Windows NT\Audit\audit.csv

Access Request Information:
	Access Mask:		0x120089
	Accesses:		READ_CONTROL

				SYNCHRONIZE

				ReadData (or ListDirectory)

				ReadEA

				ReadAttributes

				
Access Check Results:
	READ_CONTROL
:	Granted by Ownership

				SYNCHRONIZE
:	Granted by
	D:(A;;0x1200a9;;;WD)
				ReadData (or ListDirectory)
:	Granted by
	D:(A;;0x1200a9;;;WD)
				ReadEA
:	Granted by
	D:(A;;0x1200a9;;;WD)
				ReadAttributes
:	Granted by
	D:(A;;0x1200a9;;;WD)
===========================
Description template stored in adtschema.dll:
===========================
A network share object was checked to see whether client can be granted desired access.
	
Subject:
	Security ID:		%1
	Account Name:		%2
	Account Domain:		%3
	Logon ID:		%4

Network Information:	
	Object Type:		%5
	Source Address:		%6
	Source Port:		%7
	
Share Information:
	Share Name:		%8
	Share Path:		%9
	Relative Target Name:	%10

Access Request Information:
	Access Mask:		%11
	Accesses:		%12
Access Check Results:
	%13
Log Type: Windows Event Log
 Uniquely Identified By:
Log Name: Security
Filtering Field Equals to Value
OSVersion Windows Vista (2008)
Windows 7 (2008 R2)
Windows 8 (2012)
Windows 8.1 (2012 R2)
Windows 10 (2016)
Category Object Access
Source Microsoft-Windows-Security-Auditing
TaskCategory Detailed File Share
EventId 5145
Field Matching
FieldDescriptionStored inSample Value
DateTime Date/Time of event origination in GMT format. DateTime 10.10.2000 19:00:00
Source Name of an Application or System Service originating the event. Source Security
Type Warning, Information, Error, Success, Failure, etc. Type Success
User Domain\Account name of user/service/computer initiating event. User RESEARCH\Alebovsky
Computer Name of server workstation where event was logged. Computer DC1
EventID Numerical ID of event. Unique within one Event Source. EventId 576
Description The entire unparsed event message. Description Special privileges assigned to new logon.
Log Name The name of the event log (e.g. Application, Security, System, etc.) LogName Security
Task Category A name for a subclass of events within the same Event Source. TaskCategory
Level Warning, Information, Error, etc. Level
Keywords Audit Success, Audit Failure, Classic, Connection etc. Keywords
Category A name for an aggergative event class, corresponding to the similar ones present in Windows 2003 version. Category Account Logon
Object Name InsertionString10
Whom InsertionString10
Object Type InsertionString5
Class Name InsertionString5
Security ID -
Account Name -
Account Domain -
Subject: Account Name InsertionString2 IIZHU6$
Subject: Account Domain InsertionString3 ITSS
Subject: Logon ID InsertionString4 0x3a4a7dff
Network Information: Object Type InsertionString5 File
Network Information: Source Address InsertionString6 fe80::30da:ce49:ec87:9583
Network Information: Source Port InsertionString7 59095
Share Information: Share Name InsertionString8 \\*\SYSVOL
Share Information: Share Path InsertionString9 \??\C:\Windows\SYSVOL\sysvol
Share Information: Relative Target Name InsertionString10 ITSS.WM.ZHU.CN.QSFT\POLICIES\{31B2F340-016D-11D2-945F-00C04FB984F9}\MACHINE\Microsoft\Windows NT\Audit\audit.csv
Access Request Information: Access Mask InsertionString11 0x120089
Access Request Information: Accesses InsertionString12 READ_CONTROL
Subject: Security ID InsertionString1 NT AUTHORITY\SYSTEM
Access Check Results InsertionString13 READ_CONTROL
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