Microsoft-Windows-WindowsSystemAssessmentTool

14 events across 1 channel

Event	Title	Channel	Sample
0	TestV1 TestV2 TestV3 TestV4.	Operational	N
1	WinSAT Application Start: StartTimeOfDay.	Operational	Y
2	WinSAT Application Command Line CommandLine.	Operational	Y
3	WinSAT Application Stop: ExitCode.	Operational	Y
4	ERROR.	Operational	N
5	COM ERROR: Source Interface.	Operational	N
6	ERROR.	Operational	N
7	ERROR: FailingHresult ErrorMsg.	Operational	N
8	Message.	Operational	N
9	PhaseID:Description.	Operational	Y
10	PhaseID.	Operational	Y
11	Main watch dog timeout - terminating process	Operational	N
12	Assessment watch dog timeout - terminating process	Operational	N
13	Short watch dog timeout - terminating process	Operational	N

Event ID 0: TestV1 TestV2 TestV3 TestV4.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

TestV1 TestV2 TestV3 TestV4

Message #

%1 %2 %3 %4

Fields #

Name	Description
`TestV1` UInt32
`TestV2` UInt32
`TestV3` UInt32
`TestV4` UnicodeString

Event ID 1: WinSAT Application Start: StartTimeOfDay.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application
Opcode: Start

Description

WinSAT Application Start: StartTimeOfDay.

Message #

WinSAT Application Start: %1

Fields #

Name	Description
`StartTimeOfDay` FILETIME

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-WindowsSystemAssessmentTool",
    "guid": "11A75546-3234-465E-BEC8-2D301CB501AC",
    "event_source_name": "",
    "event_id": 1,
    "version": 0,
    "level": 0,
    "task": 1,
    "opcode": 1,
    "keywords": 9223372036854775808,
    "time_created": "2022-04-04T08:01:33.192091+00:00",
    "event_record_id": 1,
    "correlation": {},
    "execution": {
      "process_id": 3768,
      "thread_id": 4432
    },
    "channel": "Microsoft-Windows-WindowsSystemAssessmentTool/Operational",
    "computer": "WIN-TKC15D7KHUR",
    "security": {
      "user_id": "S-1-5-21-1958040314-2592322477-2606035944-500"
    }
  },
  "event_data": {
    "StartTimeOfDay": "2022-04-04T08:01:33.191900Z"
  },
  "message": ""
}

References #

Example event sourced from https://github.com/NextronSystems/evtx-baseline

Event ID 2: WinSAT Application Command Line CommandLine.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

WinSAT Application Command Line CommandLine.

Message #

WinSAT Application Command Line %2

Fields #

Name	Description
`CommandLineSize` UInt16
`CommandLine` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-WindowsSystemAssessmentTool",
    "guid": "11A75546-3234-465E-BEC8-2D301CB501AC",
    "event_source_name": "",
    "event_id": 2,
    "version": 0,
    "level": 0,
    "task": 1,
    "opcode": 0,
    "keywords": 9223372036854775808,
    "time_created": "2022-04-04T08:01:33.246239+00:00",
    "event_record_id": 3,
    "correlation": {},
    "execution": {
      "process_id": 3768,
      "thread_id": 4432
    },
    "channel": "Microsoft-Windows-WindowsSystemAssessmentTool/Operational",
    "computer": "WIN-TKC15D7KHUR",
    "security": {
      "user_id": "S-1-5-21-1958040314-2592322477-2606035944-500"
    }
  },
  "event_data": {
    "CommandLineSize": 92,
    "CommandLine": "C:\\Windows\\system32\\winsat.exe formal -log -cancelevent c44be6b9-8148-4e99-84df-c74f2f9e27e2"
  },
  "message": ""
}

References #

Example event sourced from https://github.com/NextronSystems/evtx-baseline

Event ID 3: WinSAT Application Stop: ExitCode.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application
Opcode: Stop

Description

WinSAT Application Stop: ExitCode.

Message #

WinSAT Application Stop: %1

Fields #

Name	Description
`ExitCode` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-WindowsSystemAssessmentTool",
    "guid": "11A75546-3234-465E-BEC8-2D301CB501AC",
    "event_source_name": "",
    "event_id": 3,
    "version": 0,
    "level": 0,
    "task": 1,
    "opcode": 2,
    "keywords": 9223372036854775808,
    "time_created": "2022-04-04T08:03:12.759191+00:00",
    "event_record_id": 82,
    "correlation": {},
    "execution": {
      "process_id": 3768,
      "thread_id": 4432
    },
    "channel": "Microsoft-Windows-WindowsSystemAssessmentTool/Operational",
    "computer": "WIN-TKC15D7KHUR",
    "security": {
      "user_id": "S-1-5-21-1958040314-2592322477-2606035944-500"
    }
  },
  "event_data": {
    "ExitCode": 0
  },
  "message": ""
}

References #

Example event sourced from https://github.com/NextronSystems/evtx-baseline

Event ID 4: ERROR.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

ERROR: CantMsg

Message #

ERROR: %3

Fields #

Name	Description
`Win32Error` UInt32
`CantMsgSize` UInt16
`CantMsg` UnicodeString

Event ID 5: COM ERROR: Source Interface.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

COM ERROR: Source Interface.

Message #

COM ERROR: %4 %6

Fields #

Name	Description
`FailingHresult` HexInt32
`FailingInterfaceCLSID` GUID
`SourceSize` UInt16
`Source` UnicodeString
`InfterfaceSize` UInt16
`Interface` UnicodeString
`ErrorMsgSize` UInt16
`ErrorMsg` UnicodeString
`CantMsgSize` UInt16
`CantMsg` UnicodeString

Event ID 6: ERROR.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

ERROR: ErrorMsg

Message #

ERROR: %2

Fields #

Name	Description
`ErrorMsgSize` UInt16
`ErrorMsg` UnicodeString

Event ID 7: ERROR: FailingHresult ErrorMsg.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

ERROR: FailingHresult ErrorMsg

Message #

ERROR: %1 %3

Fields #

Name	Description
`FailingHresult` HexInt32
`ErrorMsgSize` UInt16
`ErrorMsg` UnicodeString
`CantMsgSize` UInt16
`CantMsg` UnicodeString

Event ID 8: Message.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

Message

Message #

%2

Fields #

Name	Description
`MessageSize` UInt16
`Message` AnsiString

Event ID 9: PhaseID:Description.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Level: Informational
Task: Application

Description

PhaseID:Description

Message #

%1:%3

Fields #

Name	Description
`PhaseID` UInt16
`DescriptionSize` UInt16
`Description` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-WindowsSystemAssessmentTool",
    "guid": "11A75546-3234-465E-BEC8-2D301CB501AC",
    "event_source_name": "",
    "event_id": 9,
    "version": 0,
    "level": 4,
    "task": 1,
    "opcode": 0,
    "keywords": 9223372036854775808,
    "time_created": "2022-04-04T08:03:12.754854+00:00",
    "event_record_id": 80,
    "correlation": {},
    "execution": {
      "process_id": 3768,
      "thread_id": 4432
    },
    "channel": "Microsoft-Windows-WindowsSystemAssessmentTool/Operational",
    "computer": "WIN-TKC15D7KHUR",
    "security": {
      "user_id": "S-1-5-21-1958040314-2592322477-2606035944-500"
    }
  },
  "event_data": {
    "PhaseID": 140,
    "DescriptionSize": 24,
    "Description": "Restore system policies"
  },
  "message": ""
}

References #

Example event sourced from https://github.com/NextronSystems/evtx-baseline

Event ID 10: PhaseID.

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Level: Informational
Task: Application

Description

PhaseID

Message #

%1

Fields #

Name	Description
`PhaseID` UInt16

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-WindowsSystemAssessmentTool",
    "guid": "11A75546-3234-465E-BEC8-2D301CB501AC",
    "event_source_name": "",
    "event_id": 10,
    "version": 0,
    "level": 4,
    "task": 1,
    "opcode": 0,
    "keywords": 9223372036854775808,
    "time_created": "2022-04-04T08:03:12.761466+00:00",
    "event_record_id": 83,
    "correlation": {},
    "execution": {
      "process_id": 3768,
      "thread_id": 4432
    },
    "channel": "Microsoft-Windows-WindowsSystemAssessmentTool/Operational",
    "computer": "WIN-TKC15D7KHUR",
    "security": {
      "user_id": "S-1-5-21-1958040314-2592322477-2606035944-500"
    }
  },
  "event_data": {
    "PhaseID": 150
  },
  "message": ""
}

References #

Example event sourced from https://github.com/NextronSystems/evtx-baseline

Event ID 11: Main watch dog timeout - terminating process

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

Main watch dog timeout - terminating process.

Message #

Main watch dog timeout - terminating process

Event ID 12: Assessment watch dog timeout - terminating process

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

Assessment watch dog timeout - terminating process.

Message #

Assessment watch dog timeout - terminating process

Event ID 13: Short watch dog timeout - terminating process

Provider: Microsoft-Windows-WindowsSystemAssessmentTool
Channel: Operational
Task: Application

Description

Short watch dog timeout - terminating process.

Message #

Short watch dog timeout - terminating process

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 11a75546-3234-465e-bec8-2d301cb501ac

Defined in WINSAT.EXE, which carries the event manifest.

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

`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:`)
`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-WindowsSystemAssessmentTool

Event ID 0: TestV1 TestV2 TestV3 TestV4.

Description

Message #

Fields #

Event ID 1: WinSAT Application Start: StartTimeOfDay.

Description

Message #

Fields #

Example Event #

References #

Event ID 2: WinSAT Application Command Line CommandLine.

Description

Message #

Fields #

Example Event #

References #

Event ID 3: WinSAT Application Stop: ExitCode.

Description

Message #

Fields #

Example Event #

References #

Event ID 4: ERROR.

Description

Message #

Fields #

Event ID 5: COM ERROR: Source Interface.

Description

Message #

Fields #

Event ID 6: ERROR.

Description

Message #

Fields #

Event ID 7: ERROR: FailingHresult ErrorMsg.

Description

Message #

Fields #

Event ID 8: Message.

Description

Message #

Fields #

Event ID 9: PhaseID:Description.

Description

Message #

Fields #

Example Event #

References #

Event ID 10: PhaseID.

Description

Message #

Fields #

Example Event #

References #

Event ID 11: Main watch dog timeout - terminating process

Description

Message #

Event ID 12: Assessment watch dog timeout - terminating process

Description

Message #

Event ID 13: Short watch dog timeout - terminating process

Description

Message #

Provenance

Downloads