Microsoft Defender for Cloud Apps alert events M365-MCASAlerts

11 operations, identified by Operation in the audit log.

Operation	Description
_catch_all	Catch-all for M365-MCASAlerts rules matching the RecordType but no specific Operation.
Activity from anonymous IP addresses	Defender for Cloud Apps detected user activity originating from an IP address associated with anonymizing proxies or Tor exit nodes.
Activity from infrequent country	Defender for Cloud Apps detected user activity from a geographic location not previously seen for that user.
Activity from suspicious IP addresses	Defender for Cloud Apps detected user activity from an IP address classified as malicious by Microsoft Threat Intelligence.
Activity performed by terminated user	Defender for Cloud Apps detected activity from a user account whose account has been disabled or terminated.
Data exfiltration to unsanctioned apps	Defender for Cloud Apps detected a significant volume of data being transferred to unsanctioned cloud applications.
Impossible travel activity	Defender for Cloud Apps detected sign-ins or activity from two geographically distant locations within a time window that precludes physical travel.
Log on from a risky IP address	Defender for Cloud Apps detected a sign-in from an IP address with a high risk score based on threat intelligence feeds.
Potential ransomware activity	Defender for Cloud Apps detected file activity patterns consistent with ransomware, such as rapid mass file modification or deletion.
Suspicious inbox forwarding	Defender for Cloud Apps detected a new inbox-forwarding rule that routes mail to an external address, a common data exfiltration technique.
Suspicious OAuth app file download activities	Defender for Cloud Apps detected an OAuth application downloading an unusually large number of files, suggesting credential abuse or data staging.

_catch_all: Microsoft Defender for Cloud Apps alert events (catch-all)

RecordType: M365-MCASAlerts

Description

Catch-all for M365-MCASAlerts rules matching the RecordType but no specific Operation.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Activity from anonymous IP addresses

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected user activity originating from an IP address associated with anonymizing proxies or Tor exit nodes.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Activity from infrequent country

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected user activity from a geographic location not previously seen for that user.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Activity from suspicious IP addresses

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected user activity from an IP address classified as malicious by Microsoft Threat Intelligence.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Activity performed by terminated user

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected activity from a user account whose account has been disabled or terminated.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Data exfiltration to unsanctioned apps

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected a significant volume of data being transferred to unsanctioned cloud applications.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Impossible travel activity

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected sign-ins or activity from two geographically distant locations within a time window that precludes physical travel.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Log on from a risky IP address

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected a sign-in from an IP address with a high risk score based on threat intelligence feeds.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Potential ransomware activity

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected file activity patterns consistent with ransomware, such as rapid mass file modification or deletion.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Suspicious inbox forwarding

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected a new inbox-forwarding rule that routes mail to an external address, a common data exfiltration technique.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

Suspicious OAuth app file download activities

RecordType: M365-MCASAlerts

Description

Defender for Cloud Apps detected an OAuth application downloading an unusually large number of files, suggesting credential abuse or data staging.

Fields #

Name	Description
`RecordType`	AuditLogRecordType enum value (named string in Sentinel OfficeActivity; integer in the raw Management Activity API JSON).
`Operation`	The name of the user or admin activity. For Exchange admin activity this is the cmdlet name; for DLP it is DlpRuleMatch/DlpRuleUndo/DlpInfo. The per-event discriminator (event.action in Elastic ECS).
`Workload`	The Microsoft 365 service where the activity occurred (Exchange, SharePoint, AzureActiveDirectory, MicrosoftTeams, ...). Surfaces as event.provider in Elastic ECS.
`ResultStatus`	Whether the action succeeded: Succeeded, PartiallySucceeded, or Failed (True/False for Exchange admin). For STS-logon events this reflects only the HTTP operation, not logon success: check LogonError.
`UserId`	UPN of the user who performed the action; system-account and app@sharepoint values also appear.
`UserType`	Type of actor: Regular, Admin, System, DcAdmin, Application, ServicePrincipal.
`UserKey`	Alternative ID for the user (the PUID for SharePoint / OneDrive / Exchange events).
`ClientIP`	IPv4/IPv6 address of the device used; may be a trusted-app IP, and is null for Microsoft Entra ID events.
`ObjectId`	For SharePoint/OneDrive, the full path of the file/folder; for Exchange admin, the object modified by the cmdlet; shape is operation-specific.
`OrganizationId`	GUID of the tenant's Office 365 organization (constant per tenant).
`Id`	Unique identifier (GUID) for the audit record.
`CreationTime`	UTC date/time when the audit record was generated.
`Scope`	Source of the event: online (a Microsoft 365 service) or onprem (an on-premises service; currently SharePoint only).
`AppAccessContext`	Application context for the user or service principal that performed the action.

References #

Office 365 Management Activity API schema (AuditLogRecordType enum) https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema
Microsoft Purview audit log activities reference https://learn.microsoft.com/en-us/purview/audit-log-activities

`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)