Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter

8 events across 2 channels

Event	Title	Channel	Sample
1	The Virtual Storage Filter Driver failed to initialize (NTStatus).	Admin	N
2	The Virtual Storage Filter Driver failed to intialize disk (NTStatus).	Admin	N
3	The Virtual Storage Filter Driver is active for disk at location Location …	Admin	N
4	The Virtual Storage Filter Driver is inactive for disk at location Location …	Admin	N
5	The Virtual Storage Filter Driver is disabled through the registry.	Admin	N
202	Dispatching a read request.	Debug	N
203	Dispatching a write request.	Debug	N
208	Completing an IO (read/write) request.	Debug	N

Event ID 1: The Virtual Storage Filter Driver failed to initialize (NTStatus).

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Admin

Description

The Virtual Storage Filter Driver failed to initialize (NTStatus).

Message #

The Virtual Storage Filter Driver failed to initialize (%1).

Fields #

Name	Description
`NTStatus` HexInt32	NTSTATUS reference

Event ID 2: The Virtual Storage Filter Driver failed to intialize disk (NTStatus).

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Admin

Description

The Virtual Storage Filter Driver failed to intialize disk (NTStatus).

Message #

The Virtual Storage Filter Driver failed to intialize disk (%1).

Fields #

Name	Description
`NTStatus` HexInt32	NTSTATUS reference

Event ID 3: The Virtual Storage Filter Driver is active for disk at location Location (NTStatus).

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Admin

Description

The Virtual Storage Filter Driver is active for disk at location Location (NTStatus).

Message #

The Virtual Storage Filter Driver is active for disk at location %1 (%2).

Fields #

Name	Description
`Location` UnicodeString
`NTStatus` HexInt32	NTSTATUS reference

Event ID 4: The Virtual Storage Filter Driver is inactive for disk at location Location (NTStatus).

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Admin

Description

The Virtual Storage Filter Driver is inactive for disk at location Location (NTStatus).

Message #

The Virtual Storage Filter Driver is inactive for disk at location %1 (%2).

Fields #

Name	Description
`Location` UnicodeString
`NTStatus` HexInt32	NTSTATUS reference

Event ID 5: The Virtual Storage Filter Driver is disabled through the registry.

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Admin

Description

The Virtual Storage Filter Driver is disabled through the registry. It is inactive for all disk drives.

Message #

The Virtual Storage Filter Driver is disabled through the registry. It is inactive for all disk drives.

Event ID 202: Dispatching a read request.

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Debug
Task: Port
Opcode: Dispatchingofrequest.

Description

Dispatching a read request.

Message #

Dispatching a read request.

Fields #

Name	Description
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinblocks` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer

Event ID 203: Dispatching a write request.

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Debug
Task: Port
Opcode: Dispatchingofrequest.

Description

Dispatching a write request.

Message #

Dispatching a write request.

Fields #

Name	Description
`Irp` Pointer
`Command` UInt8
`LengthOfTransferinblocks` UInt64
`LBA` HexInt64
`OriginalIrp` Pointer

Event ID 208: Completing an IO (read/write) request.

Provider: Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter
Channel: Debug
Task: Port
Opcode: Completionofrequest.

Description

Completing an IO (read/write) request.

Message #

Completing an IO (read/write) request.

Fields #

Name	Description
`Irp` Pointer
`NTStatus` HexInt32	NTSTATUS reference
`SrbStatus` UInt8
`ScsiStatus` UInt8
`SenseKey` UInt8
`AddSense` UInt8
`AddSenseQ` UInt8
`OriginalIrp` Pointer

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 0b9fdccc-451c-449c-9bd8-6756fcc6091a

Defined in vmstorfl.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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`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`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)

Microsoft-Windows-Hyper-V-Guest-Drivers-Storage-Filter

Event ID 1: The Virtual Storage Filter Driver failed to initialize (NTStatus).

Description

Message #

Fields #

Event ID 2: The Virtual Storage Filter Driver failed to intialize disk (NTStatus).

Description

Message #

Fields #

Event ID 3: The Virtual Storage Filter Driver is active for disk at location Location (NTStatus).

Description

Message #

Fields #

Event ID 4: The Virtual Storage Filter Driver is inactive for disk at location Location (NTStatus).

Description

Message #

Fields #

Event ID 5: The Virtual Storage Filter Driver is disabled through the registry.

Description

Message #

Event ID 202: Dispatching a read request.

Description

Message #

Fields #

Event ID 203: Dispatching a write request.

Description

Message #

Fields #

Event ID 208: Completing an IO (read/write) request.

Description

Message #

Fields #

Provenance

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