Microsoft-Windows-UAC-FileVirtualization

27 events across 1 channel

Event	Title	Channel	Sample
2000	Failed to register with Filter Manager.	Operational	N
2001	Failed to read the settings.	Operational	N
2002	Failed to read the file list.	Operational	N
2003	Failed to initialize security.	Operational	N
2004	Failed to start filtering.	Operational	N
2005	Failed to set up the instance for a volume.	Operational	N
2006	Failed to query the virtualization mode.	Operational	N
2007	Failed to query virtual store file information.	Operational	N
2008	Failed to select which file to create.	Operational	N
2009	Failed to create a stream handle context.	Operational	N
2010	Failed to set the stream handle context.	Operational	N
2011	Failed to perform the administrator access check.	Operational	N
2012	Failed to prepare for delayed virtualization.	Operational	N
2013	Failed to perform delayed virtualization.	Operational	N
2014	Failed to switch one or more delayed file objects.	Operational	N
2015	Failed to create the virtual file path.	Operational	N
2016	Failed to copy the file into the virtual store.	Operational	N
2017	Failed to perform the merged directory query.	Operational	N
2018	Failed to query information for the file object.	Operational	N
2019	Failed to check target file for WRP protection.	Operational	N
4000	Virtual file "FileNameBuffer" created.	Operational	N
4001	Virtual file "FileNameBuffer" renamed to "TargetFileNameBuffer".	Operational	N
4002	Virtual delete of file "FileNameBuffer" requested.	Operational	N
5000	Operation on file "FileNameBuffer" excluded from virtualization.	Operational	N
5002	Delayed virtual file "FileNameBuffer" not virtualized.	Operational	N
5003	Access was denied on WRP file "FileNameBuffer".	Operational	N
5004	Access was denied to delete file "FileNameBuffer".	Operational	N

Event ID 2000: Failed to register with Filter Manager.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to register with Filter Manager.

Message #

Failed to register with Filter Manager.

Fields #

Name	Description
`Error` UInt32

Event ID 2001: Failed to read the settings.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to read the settings.

Message #

Failed to read the settings.

Fields #

Name	Description
`Error` UInt32

Event ID 2002: Failed to read the file list.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to read the file list.

Message #

Failed to read the file list.

Fields #

Name	Description
`Error` UInt32

Event ID 2003: Failed to initialize security.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to initialize security.

Message #

Failed to initialize security.

Fields #

Name	Description
`Error` UInt32

Event ID 2004: Failed to start filtering.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to start filtering.

Message #

Failed to start filtering.

Fields #

Name	Description
`Error` UInt32

Event ID 2005: Failed to set up the instance for a volume.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to set up the instance for a volume.

Message #

Failed to set up the instance for a volume.

Fields #

Name	Description
`Error` UInt32

Event ID 2006: Failed to query the virtualization mode.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to query the virtualization mode.

Message #

Failed to query the virtualization mode.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2007: Failed to query virtual store file information.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to query virtual store file information.

Message #

Failed to query virtual store file information.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2008: Failed to select which file to create.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to select which file to create.

Message #

Failed to select which file to create.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2009: Failed to create a stream handle context.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to create a stream handle context.

Message #

Failed to create a stream handle context.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2010: Failed to set the stream handle context.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to set the stream handle context.

Message #

Failed to set the stream handle context.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2011: Failed to perform the administrator access check.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to perform the administrator access check.

Message #

Failed to perform the administrator access check.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2012: Failed to prepare for delayed virtualization.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to prepare for delayed virtualization.

Message #

Failed to prepare for delayed virtualization.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2013: Failed to perform delayed virtualization.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to perform delayed virtualization.

Message #

Failed to perform delayed virtualization.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2014: Failed to switch one or more delayed file objects.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to switch one or more delayed file objects.

Message #

Failed to switch one or more delayed file objects.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2015: Failed to create the virtual file path.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to create the virtual file path.

Message #

Failed to create the virtual file path.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2016: Failed to copy the file into the virtual store.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to copy the file into the virtual store.

Message #

Failed to copy the file into the virtual store.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2017: Failed to perform the merged directory query.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to perform the merged directory query.

Message #

Failed to perform the merged directory query.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2018: Failed to query information for the file object.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to query information for the file object.

Message #

Failed to query information for the file object.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 2019: Failed to check target file for WRP protection.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Failed to check target file for WRP protection.

Message #

Failed to check target file for WRP protection.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`Error` UInt32

Event ID 4000: Virtual file "FileNameBuffer" created.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Virtual file "FileNameBuffer" created.

Message #

Virtual file "%5" created.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`CreateOptions` UInt32
`DesiredAccess` UInt32	Process access rights reference
`IrpMajorFunction` UInt8

Event ID 4001: Virtual file "FileNameBuffer" renamed to "TargetFileNameBuffer".

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Virtual file "FileNameBuffer" renamed to "TargetFileNameBuffer".

Message #

Virtual file "%5" renamed to "%9"

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`TargetFileNameLength` UInt16
`TargetFileNameBuffer` UnicodeString

Event ID 4002: Virtual delete of file "FileNameBuffer" requested.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Virtual delete of file "FileNameBuffer" requested.

Message #

Virtual delete of file "%5" requested.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString

Event ID 5000: Operation on file "FileNameBuffer" excluded from virtualization.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Operation on file "FileNameBuffer" excluded from virtualization.

Message #

Operation on file "%5" excluded from virtualization.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`CreateOptions` UInt32
`DesiredAccess` UInt32	Process access rights reference
`IrpMajorFunction` UInt8
`Exclusions` UInt32

Event ID 5002: Delayed virtual file "FileNameBuffer" not virtualized.

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Delayed virtual file "FileNameBuffer" not virtualized.

Message #

Delayed virtual file "%5" not virtualized.

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString
`CreateOptions` UInt32
`DesiredAccess` UInt32	Process access rights reference

Event ID 5003: Access was denied on WRP file "FileNameBuffer".

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Access was denied on WRP file "FileNameBuffer".

Message #

Access was denied on WRP file "%5"

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString

Event ID 5004: Access was denied to delete file "FileNameBuffer".

Provider: Microsoft-Windows-UAC-FileVirtualization
Channel: Operational

Description

Access was denied to delete file "FileNameBuffer".

Message #

Access was denied to delete file "%5"

Fields #

Name	Description
`Flags` UInt32
`SidLength` UInt32
`Sid` SID
`FileNameLength` UInt16
`FileNameBuffer` UnicodeString
`ProcessImageNameLength` UInt16
`ProcessImageNameBuffer` UnicodeString

Provenance

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

ETW provider GUID c02afc2b-e24e-4449-ad76-bcc2c2575ead

Defined in luafv.sys, the binary that emits these events.

Observed on:

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02

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`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)