Microsoft-Windows-ZTDNS

8 events across 3 channels

Event	Title	Channel
1	PERMIT - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by …	PermittedConnections
2	BLOCK - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by …	BlockedConnections
3	UPDATE - Trusted servers by process (ProcessId) ProcessPath.	Operational
4	REMOVE - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.	Operational
5	ADD - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.	Operational
6	UPDATE - State to ServiceState by process (ProcessId) ProcessPath.	Operational
7	START - ZTDNS service with status Status.	Operational
8	STOP - ZTDNS service with status Status.	Operational

Event ID 1: PERMIT - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by process (ProcessId) ProcessPath because of PermitType PermitInfo from service ServiceName.

Provider: Microsoft-Windows-ZTDNS
Channel: PermittedConnections
Task: Task_Classify
Opcode: Opcode_Classify

Description

PERMIT - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by process (ProcessId) ProcessPath because of PermitType PermitInfo from service ServiceName.

Message #

PERMIT - Connection [%2]:%3 -> [%5]:%6 by process (%8) %9 because of %10 %11 from service %12

Fields #

Name	Description
`LocalAddressLength` UInt32
`LocalAddress` Binary
`LocalPort` UInt32
`RemoteAddressLength` UInt32
`RemoteAddress` Binary
`RemotePort` UInt32
`Protocol` UInt32	Known values `0` HOPOPT `1` ICMP `2` IGMP `6` TCP `17` UDP `41` IPv6 `43` IPv6-Route `44` IPv6-Frag `47` GRE `50` ESP `51` AH `58` ICMPv6 `89` OSPF `103` PIM `132` SCTP
`ProcessId` UInt64
`ProcessPath` UnicodeString
`PermitType` UInt32
`PermitInfo` UnicodeString
`ServiceName` UnicodeString

Event ID 2: BLOCK - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by process (ProcessId) ProcessPath from service ServiceName.

Provider: Microsoft-Windows-ZTDNS
Channel: BlockedConnections
Task: Task_Classify
Opcode: Opcode_Classify

Description

BLOCK - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by process (ProcessId) ProcessPath from service ServiceName.

Message #

BLOCK - Connection [%2]:%3 -> [%5]:%6 by process (%8) %9 from service %10

Fields #

Name	Description
`LocalAddressLength` UInt32
`LocalAddress` Binary
`LocalPort` UInt32
`RemoteAddressLength` UInt32
`RemoteAddress` Binary
`RemotePort` UInt32
`Protocol` UInt32	Known values `0` HOPOPT `1` ICMP `2` IGMP `6` TCP `17` UDP `41` IPv6 `43` IPv6-Route `44` IPv6-Frag `47` GRE `50` ESP `51` AH `58` ICMPv6 `89` OSPF `103` PIM `132` SCTP
`ProcessId` UInt64
`ProcessPath` UnicodeString
`ServiceName` UnicodeString

Event ID 3: UPDATE - Trusted servers by process (ProcessId) ProcessPath.

Provider: Microsoft-Windows-ZTDNS
Channel: Operational
Task: Task_Notify
Opcode: Opcode_Notify

Description

UPDATE - Trusted servers by process (ProcessId) ProcessPath.

Message #

UPDATE - Trusted servers by process (%1) %2

Fields #

Name	Description
`ProcessId` UInt64
`ProcessPath` UnicodeString

Event ID 4: REMOVE - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.

Provider: Microsoft-Windows-ZTDNS
Channel: Operational
Task: Task_Notify
Opcode: Opcode_Notify

Description

REMOVE - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.

Message #

REMOVE - %1%2 by process (%3) %4

Fields #

Name	Description
`ExceptionsUpdateType` UInt32
`ExceptionName` UnicodeString
`ProcessId` UInt64
`ProcessPath` UnicodeString

Event ID 5: ADD - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.

Provider: Microsoft-Windows-ZTDNS
Channel: Operational
Task: Task_Notify
Opcode: Opcode_Notify

Description

ADD - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.

Message #

ADD - %1%2 by process (%3) %4

Fields #

Name	Description
`ExceptionsUpdateType` UInt32
`ExceptionName` UnicodeString
`ProcessId` UInt64
`ProcessPath` UnicodeString

Event ID 6: UPDATE - State to ServiceState by process (ProcessId) ProcessPath.

Provider: Microsoft-Windows-ZTDNS
Channel: Operational
Task: Task_Notify
Opcode: Opcode_Notify

Description

UPDATE - State to ServiceState by process (ProcessId) ProcessPath.

Message #

UPDATE - State to %1 by process (%2) %3

Fields #

Name	Description
`ServiceState` UInt32
`ProcessId` UInt64
`ProcessPath` UnicodeString

Event ID 7: START - ZTDNS service with status Status.

Provider: Microsoft-Windows-ZTDNS
Channel: Operational
Task: Task_Notify
Opcode: Opcode_Notify

Description

START - ZTDNS service with status Status.

Message #

START - ZTDNS service with status %1

Fields #

Name	Description
`Status` UInt32	NTSTATUS reference

Event ID 8: STOP - ZTDNS service with status Status.

Provider: Microsoft-Windows-ZTDNS
Channel: Operational
Task: Task_Notify
Opcode: Opcode_Notify

Description

STOP - ZTDNS service with status Status.

Message #

STOP - ZTDNS service with status %1

Fields #

Name	Description
`Status` UInt32	NTSTATUS reference

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 8507cd07-f18b-54f0-b871-23c43a5bf118

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

Observed on:

Win11-26200.6584 · schema read from the registered manifest · binary version 10.0.26100.5074 · captured 2026-06-02

Downloads

Microsoft-Windows-ZTDNS 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-ZTDNS

Event ID 1: PERMIT - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by process (ProcessId) ProcessPath because of PermitType PermitInfo from service ServiceName.

Description

Message #

Fields #

Event ID 2: BLOCK - Connection [LocalAddress]:LocalPort -> [RemoteAddress]:RemotePort by process (ProcessId) ProcessPath from service ServiceName.

Description

Message #

Fields #

Event ID 3: UPDATE - Trusted servers by process (ProcessId) ProcessPath.

Description

Message #

Fields #

Event ID 4: REMOVE - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.

Description

Message #

Fields #

Event ID 5: ADD - ExceptionsUpdateTypeExceptionName by process (ProcessId) ProcessPath.

Description

Message #

Fields #

Event ID 6: UPDATE - State to ServiceState by process (ProcessId) ProcessPath.

Description

Message #

Fields #

Event ID 7: START - ZTDNS service with status Status.

Description

Message #

Fields #

Event ID 8: STOP - ZTDNS service with status Status.

Description

Message #

Fields #

Provenance

Downloads

Credits

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