Microsoft-Windows-Sdstor

8 events across 1 channel

Event	Title	Channel
100	Request servicing time taken by SD stack.	Analytic
101	Packed Command Read Received.	Analytic
102	Packed Command Write Received.	Analytic
103	HPI Timer Queued	Analytic
104	HPI Irp Sent	Analytic
105	HPI Irp Completed (0xResultCode).	Analytic
106	Flush received	Analytic
107	Discard received (LBA LBA Length Length).	Analytic

Event ID 100: Request servicing time taken by SD stack.

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: Io

Description

Request servicing time taken by SD stack.

Message #

Request servicing time taken by SD stack.

Fields #

Name	Description
`Port` UInt8
`Bus` UInt8
`Target` UInt8
`LUN` UInt8
`RequestDuration` UInt64
`CDBLength` UInt32
`CDB` Binary
`SrbStatus` UInt8
`Irp` Pointer
`OriginalIrp` Pointer

Event ID 101: Packed Command Read Received.

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: PackedCommand

Description

Packed Command Read Received.

Message #

Packed Command Read Received.
Total Count: %1
Number of Packed Irps: %2

Fields #

Name	Description
`PackedCommandCount` UInt32
`NumIrpsPacked` UInt32

Event ID 102: Packed Command Write Received.

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: PackedCommand

Description

Packed Command Write Received.

Message #

Packed Command Write Received.
Total Count: %1
Number of Packed Irps: %2

Fields #

Name	Description
`PackedCommandCount` UInt32
`NumIrpsPacked` UInt32

Event ID 103: HPI Timer Queued

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: HighPriorityInterrupt

Description

HPI Timer Queued.

Message #

HPI Timer Queued

Event ID 104: HPI Irp Sent

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: HighPriorityInterrupt

Description

HPI Irp Sent.

Message #

HPI Irp Sent

Event ID 105: HPI Irp Completed (0xResultCode).

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: HighPriorityInterrupt

Description

HPI Irp Completed (0xResultCode).

Message #

HPI Irp Completed (0x%1)

Fields #

Name	Description
`ResultCode` UInt32

Event ID 106: Flush received

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: Flush

Description

Flush received.

Message #

Flush received

Event ID 107: Discard received (LBA LBA Length Length).

Provider: Microsoft-Windows-Sdstor
Channel: Analytic
Task: Discard

Description

Discard received (LBA LBA Length Length).

Message #

Discard received (LBA %1 Length %2)

Fields #

Name	Description
`LBA` UInt64
`Length` UInt32

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 afe654eb-0a83-4eb4-948f-d4510ec39c30

Defined in sdstor.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

Downloads

Microsoft-Windows-Sdstor registered manifest XML (WS2022-20348.4893) manifest-xml
Microsoft-Windows-Sdstor registered manifest XML (Win11-26200.6584) manifest-xml

Credits

Microsoft - authored the ETW manifests and PDBs the schema comes from
jdu2600 - the event-schema TSV format this catalog adopted
nasbench - the tool that dumps registered providers and manifests

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	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:`)
`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-Sdstor

Event ID 100: Request servicing time taken by SD stack.

Description

Message #

Fields #

Event ID 101: Packed Command Read Received.

Description

Message #

Fields #

Event ID 102: Packed Command Write Received.

Description

Message #

Fields #

Event ID 103: HPI Timer Queued

Description

Message #

Event ID 104: HPI Irp Sent

Description

Message #

Event ID 105: HPI Irp Completed (0xResultCode).

Description

Message #

Fields #

Event ID 106: Flush received

Description

Message #

Event ID 107: Discard received (LBA LBA Length Length).

Description

Message #

Fields #

Provenance

Downloads

Credits

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