Cloud Key Management Service (KMS) GCP-cloudkms.googleapis.com

13 operations, identified by methodName in the audit log.

methodName	Description
any	Catch-all entry for cloudkms.googleapis.com. Source-only rules that attribute to the service without a specific method attribute here. Not a distinct audit log operation.
CreateCryptoKey	Creates a new CryptoKey within a KeyRing.
CreateCryptoKeyVersion	Creates a new CryptoKeyVersion in a CryptoKey.
CreateKeyRing	Creates a new KeyRing in a given Project and Location.
Decrypt	Decrypts data that was protected by Encrypt. The CryptoKey.purpose must be ENCRYPT_DECRYPT.
DeleteCryptoKeyVersion	Schedules a CryptoKeyVersion for destruction. A CryptoKey may not be deleted, but this method will schedule the given CryptoKeyVersion for destruction.
DestroyCryptoKeyVersion	Schedule a CryptoKeyVersion for destruction. After calling this method, CryptoKeyVersion.state will be set to DESTROY_SCHEDULED, and the key material will be irreversibly destroyed after 24 hours.
Encrypt	Encrypts data, so that it can only be recovered by a call to Decrypt. The CryptoKey.purpose must be ENCRYPT_DECRYPT.
ImportCryptoKeyVersion	Imports a new CryptoKeyVersion into an existing CryptoKey using the wrapped key material provided in the request.
RestoreCryptoKeyVersion	Restores a CryptoKeyVersion in the DESTROY_SCHEDULED state.
UpdateCryptoKey	Update a CryptoKey.
UpdateCryptoKeyPrimaryVersion	Update the version of a CryptoKey that will be used in Encrypt.
UpdateCryptoKeyVersion	Update a CryptoKeyVersion's metadata. Its state may be changed between ENABLED and DISABLED using this method.

any: cloudkms.googleapis.com (any method)

Service: GCP-cloudkms.googleapis.com

Description

Catch-all entry for cloudkms.googleapis.com. Source-only rules that attribute to the service without a specific method attribute here. Not a distinct audit log operation.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

CreateCryptoKey: Create crypto key

Service: GCP-cloudkms.googleapis.com

Description

Creates a new CryptoKey within a KeyRing.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

CreateCryptoKeyVersion: Create crypto key version

Service: GCP-cloudkms.googleapis.com

Description

Creates a new CryptoKeyVersion in a CryptoKey.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

CreateKeyRing: Create key ring

Service: GCP-cloudkms.googleapis.com

Description

Creates a new KeyRing in a given Project and Location.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

Decrypt

Service: GCP-cloudkms.googleapis.com

Description

Decrypts data that was protected by Encrypt. The CryptoKey.purpose must be ENCRYPT_DECRYPT.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

Detection Rules #

View all rules referencing this event →

YARA-L #

Unauthorized KMS Decryption source: Detects when a Key Management Service (KMS) decryption operation is carried out by a service account that's not in the allowlist. This behavior may indicate unauthorized access to information.

DeleteCryptoKeyVersion: Delete crypto key version

Service: GCP-cloudkms.googleapis.com

Description

Schedules a CryptoKeyVersion for destruction. A CryptoKey may not be deleted, but this method will schedule the given CryptoKeyVersion for destruction.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

DestroyCryptoKeyVersion: Destroy crypto key version

Service: GCP-cloudkms.googleapis.com

Description

Schedule a CryptoKeyVersion for destruction. After calling this method, CryptoKeyVersion.state will be set to DESTROY_SCHEDULED, and the key material will be irreversibly destroyed after 24 hours.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

Detection Rules #

View all rules referencing this event →

YARA-L #

GCP Multiple KMS Keys Disabled Or Destroyed source: Detect when multiple KMS crypto key versions are disabled or destroyed from GCP Cloud KMS.↳ also matches UpdateCryptoKeyVersion: Update crypto key version

Encrypt

Service: GCP-cloudkms.googleapis.com

Description

Encrypts data, so that it can only be recovered by a call to Decrypt. The CryptoKey.purpose must be ENCRYPT_DECRYPT.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

ImportCryptoKeyVersion: Import crypto key version

Service: GCP-cloudkms.googleapis.com

Description

Imports a new CryptoKeyVersion into an existing CryptoKey using the wrapped key material provided in the request.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

RestoreCryptoKeyVersion: Restore crypto key version

Service: GCP-cloudkms.googleapis.com

Description

Restores a CryptoKeyVersion in the DESTROY_SCHEDULED state.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

UpdateCryptoKey: Update crypto key

Service: GCP-cloudkms.googleapis.com

Description

Update a CryptoKey.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

UpdateCryptoKeyPrimaryVersion: Update crypto key primary version

Service: GCP-cloudkms.googleapis.com

Description

Update the version of a CryptoKey that will be used in Encrypt.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

UpdateCryptoKeyVersion: Update crypto key version

Service: GCP-cloudkms.googleapis.com

Description

Update a CryptoKeyVersion's metadata. Its state may be changed between ENABLED and DISABLED using this method.

Fields #

Name	Description
`protoPayload.serviceName`	The GCP service endpoint that processed the request (e.g. compute.googleapis.com).
`protoPayload.methodName`	The specific API operation that was audited (versioned form, e.g. v1.compute.instances.insert).
`protoPayload.resourceName`	Scheme-less URI of the resource targeted by the operation.
`protoPayload.authenticationInfo.principalEmail`	Email address of the principal that performed the operation.
`protoPayload.requestMetadata.callerIp`	IP address of the caller.
`protoPayload.requestMetadata.callerSuppliedUserAgent`	User agent reported by the caller.
`protoPayload.authorizationInfo`	List of authorization checks performed (resource, permission, granted).
`protoPayload.request`	API request object (service-specific structure).
`protoPayload.response`	API response object (service-specific structure).
`logName`	Log stream identifier; suffix encodes the audit log type (activity, data_access, system_event, policy).

Detection Rules #

View all rules referencing this event →

YARA-L #

GCP Multiple KMS Keys Disabled Or Destroyed source: Detect when multiple KMS crypto key versions are disabled or destroyed from GCP Cloud KMS.↳ also matches DestroyCryptoKeyVersion: Destroy crypto key version

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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)