OpenSSH

5 events across 3 channels

Event	Title	Channel	Sample
1	process: payload.	Admin	N
2	process: payload.	Admin	Y
3	process: payload.	Operational	N
4	process: payload.	Operational	Y
6	process: payload.	Debug	N

Event ID 1: process: payload.

Provider: OpenSSH
Channel: Admin

Description

process: payload

Message #

%1: %2

Fields #

Name	Description
`process` UnicodeString
`payload` UnicodeString

Event ID 2: process: payload.

Provider: OpenSSH
Channel: Admin
Level: Error

Description

process: payload

Message #

%1: %2

Fields #

Name	Description
`process` UnicodeString
`payload` UnicodeString

Example Event #

{
  "system": {
    "provider": "OpenSSH",
    "guid": "C4B57D35-0636-4BC3-A262-370F249F9802",
    "event_source_name": "",
    "event_id": 2,
    "version": 0,
    "level": 2,
    "task": 0,
    "opcode": 0,
    "keywords": 9223372036854775808,
    "time_created": "2023-10-25T22:48:38.752876+00:00",
    "event_record_id": 8,
    "correlation": {},
    "execution": {
      "process_id": 2320,
      "thread_id": 1048
    },
    "channel": "OpenSSH/Admin",
    "computer": "WinDevEval",
    "security": {
      "user_id": "S-1-5-18"
    }
  },
  "event_data": {
    "process": "sshd",
    "payload": "error: kex_exchange_identification: Connection closed by remote host"
  },
  "message": ""
}

References #

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

Event ID 3: process: payload.

Provider: OpenSSH
Channel: Operational

Description

process: payload

Message #

%1: %2

Fields #

Name	Description
`process` UnicodeString
`payload` UnicodeString

Event ID 4: process: payload.

Provider: OpenSSH
Channel: Operational
Level: Informational

Description

process: payload

Message #

%1: %2

Fields #

Name	Description	Rules
`process` UnicodeString		2 detection rules
`payload` UnicodeString		2 detection rules

Example Event #

{
  "system": {
    "provider": "OpenSSH",
    "guid": "C4B57D35-0636-4BC3-A262-370F249F9802",
    "event_source_name": "",
    "event_id": 4,
    "version": 0,
    "level": 4,
    "task": 0,
    "opcode": 0,
    "keywords": 4611686018427387904,
    "time_created": "2023-10-25T22:56:14.223049+00:00",
    "event_record_id": 40,
    "correlation": {},
    "execution": {
      "process_id": 3136,
      "thread_id": 3384
    },
    "channel": "OpenSSH/Operational",
    "computer": "WinDevEval",
    "security": {
      "user_id": "S-1-5-18"
    }
  },
  "event_data": {
    "process": "sshd",
    "payload": "Received signal 8; terminating."
  },
  "message": ""
}

Common Indicators #

Field/value combinations most frequently checked by detection rules targeting this event, derived from cross-vendor predicate analysis.

Field	Kind	Value	Rules	Vendors
`CommandLine`	eq	`sshd`	2 rules	sigma

Detection Rules #

View all rules referencing this event →

Sigma # view in coverage

OpenSSH Server Listening On Socket source medium: Detects scenarios where an attacker enables the OpenSSH server and server starts to listening on SSH socket.
OpenSSH server listening on socket source medium: Detects scenarios where an attacker enables the OpenSSH server and server starts to listening on SSH socket.

References #

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

Event ID 6: process: payload.

Provider: OpenSSH
Channel: Debug

Description

process: payload

Message #

%1: %2

Fields #

Name	Description
`process` UnicodeString
`payload` 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 c4b57d35-0636-4bc3-a262-370f249f9802

Defined in ssh-agent.exe, which carries the event manifest.

Observed on:

WS2022-20348.4893, schema read from the registered manifest, binary version 9.5.5.1, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 9.5.5.1, captured 2026-06-02

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`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)

OpenSSH

Event ID 1: process: payload.

Description

Message #

Fields #

Event ID 2: process: payload.

Description

Message #

Fields #

Example Event #

References #

Event ID 3: process: payload.

Description

Message #

Fields #

Event ID 4: process: payload.

Description

Message #

Fields #

Example Event #

Common Indicators #

Detection Rules #

Sigma # view in coverage

References #

Event ID 6: process: payload.

Description

Message #

Fields #

Provenance

Downloads

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