Microsoft-Windows-Kernel-Tm

4 events across 1 channel

Event	Title	Channel	Sample
1	The Transaction (UOW=TxUow, Description='TxDescription') was unable to be …	System	N
2	The Transaction (UOW=TxUow, Description='TxDescription') blocked a Freeze from …	System	N
3	The transaction (UOW=TxUow, Description='TxDescription') was heuristically …	System	N
4	The TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) has failed to …	System	N

Event ID 1: The Transaction (UOW=TxUow, Description='TxDescription') was unable to be committed, and instead rolled back; this was due to an error message returned by CLFS w...

Provider: Microsoft-Windows-Kernel-Tm
Channel: System

Description

The Transaction (UOW=TxUow, Description='TxDescription') was unable to be committed, and instead rolled back; this was due to an error message returned by CLFS while attempting to write a Prepare or Commit record for the Transaction. The CLFS error returned was: ClfsStatus.

Message #

The Transaction (UOW=%1, Description='%3') was unable to be committed, and instead rolled back; this was due to an error message returned by CLFS while attempting to write a Prepare or Commit record for the Transaction.  The CLFS error returned was: %4.

Fields #

Name	Description
`TxUow` GUID
`TxDescriptionLength` UInt16
`TxDescription` UnicodeString
`ClfsStatus` HexInt32

Event ID 2: The Transaction (UOW=TxUow, Description='TxDescription') blocked a Freeze from completing.

Provider: Microsoft-Windows-Kernel-Tm
Channel: System

Description

The Transaction (UOW=TxUow, Description='TxDescription') blocked a Freeze from completing. Freeze is necessary to ensure that a VSS snapshot is transactionally consistent. The ResourceManager (RmId=RmId, Description='RmDescription') may not be functioning correctly, since it did not allow the transaction to drain in the allotted time. Contact the vendor for that ResourceManager for assistance.

Message #

The Transaction (UOW=%1, Description='%3') blocked a Freeze from completing.  Freeze is necessary to ensure that a VSS snapshot is transactionally consistent.  The ResourceManager (RmId=%4, Description='%6') may not be functioning correctly, since it did not allow the transaction to drain in the allotted time.  Contact the vendor for that ResourceManager for assistance.

Fields #

Name	Description
`TxUow` GUID
`TxDescriptionLength` UInt16
`TxDescription` UnicodeString
`RmId` GUID
`RmDescriptionLength` UInt16
`RmDescription` UnicodeString

Event ID 3: The transaction (UOW=TxUow, Description='TxDescription') was heuristically aborted and forgotten from the TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) so that the Tr...

Provider: Microsoft-Windows-Kernel-Tm
Channel: System

Description

The transaction (UOW=TxUow, Description='TxDescription') was heuristically aborted and forgotten from the TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) so that the TransactionManager can continue to make forward progress. This may cause data corruption in any subordinate ResourceManagers or Transactionmanager.

Message #

The transaction (UOW=%1, Description='%3') was heuristically aborted and forgotten from the TransactionManager (TmId=%4, LogPath=%6) so that the TransactionManager can continue to make forward progress.  This may cause data corruption in any subordinate ResourceManagers or Transactionmanager.

Fields #

Name	Description
`TxUow` GUID
`TxDescriptionLength` UInt16
`TxDescription` UnicodeString
`TmIdentity` GUID
`TmLogFileNameLength` UInt16
`TmLogFileName` UnicodeString

Event ID 4: The TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) has failed to advance its log tail, due to the transaction (UOW=TxUow, Description='TxDescription') being unresolved...

Provider: Microsoft-Windows-Kernel-Tm
Channel: System

Description

The TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) has failed to advance its log tail, due to the transaction (UOW=TxUow, Description='TxDescription') being unresolved for some time. The transaction must be forced to resolve in order for the TransactionManager to continue to provide transactional services. Forcing the incorrect outcome may cause data corruption in any subordinate ResourceManagers or Transactionmanagers.

Message #

The TransactionManager (TmId=%1, LogPath=%3) has failed to advance its log tail, due to the transaction (UOW=%4, Description='%6') being unresolved for some time.  The transaction must be forced to resolve in order for the TransactionManager to continue to provide transactional services.  Forcing the incorrect outcome may cause data corruption in any subordinate ResourceManagers or Transactionmanagers.

Fields #

Name	Description
`TmIdentity` GUID
`TmLogFileNameLength` UInt16
`TmLogFileName` UnicodeString
`TxUow` GUID
`TxDescriptionLength` UInt16
`TxDescription` 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 4cec9c95-a65f-4591-b5c4-30100e51d870

Defined in ktmw32.dll, 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

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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)

Microsoft-Windows-Kernel-Tm

Event ID 1: The Transaction (UOW=TxUow, Description='TxDescription') was unable to be committed, and instead rolled back; this was due to an error message returned by CLFS w...

Description

Message #

Fields #

Event ID 2: The Transaction (UOW=TxUow, Description='TxDescription') blocked a Freeze from completing.

Description

Message #

Fields #

Event ID 3: The transaction (UOW=TxUow, Description='TxDescription') was heuristically aborted and forgotten from the TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) so that the Tr...

Description

Message #

Fields #

Event ID 4: The TransactionManager (TmId=TmIdentity, LogPath=TmLogFileName) has failed to advance its log tail, due to the transaction (UOW=TxUow, Description='TxDescription') being unresolved...

Description

Message #

Fields #

Provenance

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