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Merged
osmontero merged 6 commits into from
Sep 25, 2026
Merged

feat(o365): normalize outcomes and group administrator changes #2661

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47de17d
fix(o365): derive action results from final workload outcomes
kryonsx Sep 23, 2026
20a9f32
feat(o365): add grouped administrator awareness rules
kryonsx Sep 23, 2026
be5533e
fix(o365): keep awareness alerts under the flood guard limit
kryonsx Sep 24, 2026
029bfa3
fix(o365): group password spraying alerts by the attacking address
kryonsx Sep 24, 2026
c207320
fix(o365): drop routine noise from awareness alerts, restore forwardi…
kryonsx Sep 24, 2026
007c722
Merge official v11 (d2479c1a) into the Office 365 draft
kryonsx Sep 24, 2026
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189 changes: 167 additions & 22 deletions filters/office365/o365.yml
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# Microsoft 365 filter, version 1.2.3
# Microsoft 365 filter, version 1.4.1

pipeline:
- dataTypes:
Expand All @@ -8,6 +8,45 @@ pipeline:
source: raw
- drop:
where: oneOf("log.Operation", ['AINotesUpdate', 'AcceptedSharingLinkOnFolder', 'AccessRequestUpdated', 'AccessedOdataLink', 'AddCommentToIncident.', 'AddFormCoauthor', 'AddRemediatedData', 'AddTagsToIncident', 'AdminThreadMuted', 'AdminThreadUnmuted', 'AlertExcelDownloaded', 'AlertNotificationsRecipientAdded', 'AllowShareFormForCopy', 'AppPublishedToCatalog', 'AppUpdatedInCatalog', 'AppUpgraded', 'ApplyRecordLabel', 'ApproveDisposal', 'AssignUserToIncident', 'AuditSearchCancelled', 'AuditSearchCompleted', 'AuditSearchCreated', 'AuditSearchExportJobCompleted', 'AuditSearchExportJobCreated', 'AuditSearchExportResultsDownloaded', 'BackupItemAdded', 'BackupItemRemoved', 'BackupItemRestoreCompleted', 'BackupItemRestoreTriggered', 'BackupPolicyActivated', 'BackupPolicyPaused', 'BotAddedToTeam', 'BreakEnded', 'BurnJob', 'CanceledQuery', 'CaseUpdated', 'ChannelAdded', 'ChannelOwnerResponded', 'ChatRetrieved', 'ChatUpdated', 'ClassificationAdded', 'ClassificationDefinitionCreated', 'ClientViewSignaled', 'ClockedIn', 'ClockedOut', 'CloseConversation', 'CollectionCreated', 'CollectionHardDeleted', 'CollectionRenamed', 'CollectionSoftDeleted', 'CollectionUpdated', 'ComplianceManagerAutomationChange', 'ComplianceSettingChanged', 'ConnectToExcelWorkbook', 'ConnectorAdded', 'CopilotInteraction', 'Copy', 'Create', 'CreateComment', 'CreateCopilotPlugin', 'CreateCopilotPromptBook', 'CreateForm', 'CreateResponse', 'CreateTag', 'CreateUpdateRequest', 'CreateWorkingSet', 'CreateWorkingSetSearch', 'DataExport', 'DataShareCreated', 'DataShareDeleted', 'DeleteCopilotPlugin', 'DeleteCopilotPromptBook', 'DeleteSummaryLink', 'DeleteTag', 'DeleteWorkingSetSearch', 'DeletedResult', 'DisableCopilotPlugin', 'DisableCopilotPromptBook', 'DisallowShareFormForCopy', 'DocumentSensitivityMismatchDetected', 'DomainControllerCoverageExcelDownloaded', 'DownloadCopyOfLakeData', 'DownloadDocument', 'DownloadedReport', 'DraftRestoreTaskCreated', 'DraftRestoreTaskDeleted', 'DraftRestoreTaskEdited', 'EditUpdateRequest', 'EnableCopilotPlugin', 'EnableCopilotPromptBook', 'EntityCreated', 'ErrorRemediationJob', 'ExchangeDataProactivelyPreserved', 'ExecutedQuery', 'ExportForm', 'ExportJob', 'ExtendRetention', 'FailedValidation', 'FileCheckOutDiscarded', 'FileCheckedIn', 'FileCheckedOut', 'FileCopied', 'FileDeletedFirstStageRecycleBin', 'FileDeletedSecondStageRecycleBin', 'FileModifiedExtended', 'FileRecycled', 'FileRestored', 'FileSyncDownloadedFull', 'FileSyncUploadedFull', 'FileUpdateDescription', 'FileUploaded', 'FileVersionRecycled', 'FileVersionsAllMinorsRecycled', 'FileVersionsAllRecycled', 'FileVisited', 'FolderCopied', 'FolderCreated', 'FolderDeletedFirstStageRecycleBin', 'FolderDeletedSecondStageRecycleBin', 'FolderRecycled', 'FolderRestored', 'FolderSharingLinkShared', 'GenerateCopyOfLakeData', 'GetAllRestoreArtifactsInTask', 'GetBackupItem', 'GetRestoreTaskDetails', 'GetSummaryLink', 'GlossaryTermAssigned', 'GlossaryTermCreated', 'HoldRemoved', 'HoldUpdated', 'HubSiteJoined', 'HubSiteOrphanHubDeleted', 'HubSiteRegistered', 'InformationBarriersInsightsReportCompleted', 'InformationBarriersInsightsReportOneDriveSectionQueried', 'InformationBarriersInsightsReportSchedule', 'InformationBarriersInsightsReportSharePointSectionQueried', 'InviteSent', 'InviteeResponded', 'LabelContentExplorerAccessedItem', 'LegacyWorkflowEnabledSet', 'LinkedEntityCreated', 'ListAllBackupItemsInPolicies', 'ListAllBackupItemsInTenant', 'ListAllBackupItemsInWorkload', 'ListAllBackupPolicies', 'ListAllRestorePoints', 'ListAllRestoreTasks', 'ListColumnCreated', 'ListColumnUpdated', 'ListContentTypeCreated', 'ListContentTypeDeleted', 'ListContentTypeUpdated', 'ListCreated', 'ListForms', 'ListItemCreated', 'ListItemRecycled', 'ListItemRestored', 'LiveNotesUpdate', 'LockRecord', 'LogsCollection', 'ManagedSyncClientAllowed', 'MarkedMessageChanged', 'MeetingDetail', 'MeetingParticipantDetail', 'MessageCreatedHasLink', 'MessageCreatedNotification', 'MessageCreation', 'MessageDeleted', 'MessageDeletedNotification', 'MessageEditedHasLink', 'MessageHostedContentsListed', 'MessageRead', 'MessageUpdated', 'MessageUpdatedNotification', 'MonitoringAlertNotificationRecipientAdded', 'MonitoringAlertUpdated', 'MoveForm', 'MovedFormIntoCollection', 'MovedFormOutofCollection', 'NewAdaptiveScope', 'NewBackupPolicyCreated', 'NewComplianceTag', 'NewRetentionCompliancePolicy', 'NewsFeedEnabledSet', 'OffShiftDialogAccepted', 'OfficeOnDemandSet', 'OpenConversation', 'OpenShiftAdded', 'PagePrefetched', 'PageViewed', 'PageViewedExtended', 'PeopleResultsScopeSet', 'PerformedCardAction', 'PlanCopied', 'PlanListRead', 'PreviewForm', 'PreviewItemDownloaded', 'PreviewItemListed', 'PreviewModeEnabledSet', 'PreviewWorkingSetSearch', 'ProInvitation', 'ProjectCreated', 'ProjectListAccessed', 'PulseCancel', 'PulseCreate', 'PulseCreateDraft', 'PulseDeleteDraft', 'PulseExtendDeadline', 'PulseInvite', 'PulseShareResults', 'PulseSubmit', 'QuarantinePreview', 'QuarantineReleaseRequest', 'QuarantineReleaseRequestDeny', 'QuarantineViewHeader', 'RecordDelete', 'RelabelItem', 'RemediationActionAdded', 'RemediationActionUpdated', 'RemoveAdaptiveScope', 'RemoveComplianceTag', 'RemoveCuratedTopic', 'RemoveFormCoauthor', 'RemoveTagsFromIncident', 'RemovedSearchExported', 'RemovedSearchPreviewed', 'RemovedSearchResultsPurged', 'RemovedSearchResultsSentToZoom', 'ReportDownloaded', 'RequestAdded', 'RequestRespondedTo', 'RestoreTaskActivated', 'RestoreTaskCompleted', 'RoadmapAccessed', 'RoadmapCreated', 'RoadmapItemAccessed', 'RoadmapItemCreated', 'RunAntiVirusScan', 'ScheduleGroupAdded', 'ScheduleShared', 'SearchPermissionUpdated', 'SearchQueryPerformed', 'SearchRemoved', 'SearchReport', 'SearchReportRemoved', 'SearchResultsSentToZoom', 'SearchStopped', 'SearchUpdated', 'SearchViewed', 'Send', 'SensitivityLabelApplied', 'SensitivityLabelChanged', 'SensorActivationMethodConfigurationUpdated', 'SensorCreated', 'SensorDeploymentAccessKeyReceived', 'SensorDeploymentAccessKeyUpdated', 'SetAdvancedFeatures', 'SetRestrictiveRetentionUI', 'SharePointDataProactivelyPreserved', 'SharingInvitationRevoked', 'SharingInvitationUpdated', 'ShiftAdded', 'SiteAdminChangeRequest', 'SiteCollectionCreated', 'SiteCollectionQuotaModified', 'SiteColumnCreated', 'SiteColumnDeleted', 'SiteColumnUpdated', 'SiteContentTypeCreated', 'SiteContentTypeDeleted', 'SiteContentTypeUpdated', 'SoftDeleteSettingsUpdated', 'SubTaskCreated', 'SubmitResponse', 'SubmitUpdate', 'SubscribedToMessages', 'SupervisionRuleMatch', 'SupervisoryReviewTag', 'TabAdded', 'TabUpdated', 'TagFiles', 'TagJob', 'TaggingConfigurationUpdated', 'TaskAccessed', 'TaskAssigned', 'TaskCompleted', 'TaskCreated', 'TaskListCreated', 'TaskListRead', 'TaskRead', 'TeamCreated', 'ThreadAccessFailure', 'ThreadViewed', 'TimeClockEntryAdded', 'TimeOffAdded', 'UnlockRecord', 'Update', 'UpdateCopilotPlugin', 'UpdateCopilotPromptBook', 'UpdateCopilotSettings', 'UpdateIncidentStatus', 'UpdateResponse', 'UpdateTag', 'UpdateUsageReportsPrivacySetting', 'UpdateWorkingSetSearch', 'UpdatedPolicyConfigPriority', 'UploadedOrgData', 'UsagePolicyAcceptance', 'ViewBackupPolicyDetails', 'ViewDocument', 'ViewForm', 'ViewResponse', 'ViewResponses', 'ViewRuntimeForm', 'ViewUpdate', 'ViewedExplore', 'ViewedSearchExported', 'ViewedSearchPreviewed', 'WorkforceIntegrationAdded', 'WorkspaceCreated', 'updateddeviceconfiguration'])
# Capture documented Name/Value parameter identities before the legacy string
# cast loses their structure. The inbox rule and send-on-behalf flags mean a
# setting was supplied, including clearing it. The mailbox flag needs a non-empty
# forwarding address: Exchange records a cleared address as an empty value, and
# DeliverToMailboxAndForward alone sets no destination. No flag establishes an
# external recipient. Never trust markers supplied by the input record.
- delete:
fields:
- log.o365InboxForwardingChange
- log.o365MailboxForwardingSet
- log.o365SendOnBehalfChange
- add:
function: string
params:
key: log.o365InboxForwardingChange
value: "true"
where: >-
equals("log.Workload", "Exchange") &&
oneOf("log.Operation", ["New-InboxRule", "Set-InboxRule"]) &&
(exists("log.Parameters.#(Name==ForwardTo).Name") ||
exists("log.Parameters.#(Name==ForwardAsAttachmentTo).Name") ||
exists("log.Parameters.#(Name==RedirectTo).Name"))
- add:
function: string
params:
key: log.o365MailboxForwardingSet
value: "true"
where: >-
equals("log.Workload", "Exchange") && equals("log.Operation", "Set-Mailbox") &&
(regexMatch("log.Parameters.#(Name==ForwardingAddress).Value", "(?s)^.+$") ||
regexMatch("log.Parameters.#(Name==ForwardingSmtpAddress).Value", "(?s)^.+$"))
- add:
function: string
params:
key: log.o365SendOnBehalfChange
value: "true"
where: >-
equals("log.Workload", "Exchange") && equals("log.Operation", "Set-Mailbox") &&
exists("log.Parameters.#(Name==GrantSendOnBehalfTo).Name")
- cast:
fields:
- log.Parameters
Expand Down Expand Up @@ -73,18 +112,125 @@ pipeline:
from:
- log.DestFolder.Path
to: log.destFolderPath
# ResultStatus is workload-specific. Preserve it and derive only established
# operation outcomes; partial, pending and unknown results remain unset.
- delete:
fields:
- actionResult
- add:
function: string
params:
key: actionResult
value: success
where: oneOf("log.ResultStatus", ["Succeeded", "Success", "Successful", "True"]) && !equals("action", "UserLoginFailed")
where: >-
!oneOf("log.RecordType", [1, 15, 41, 188, 189, 190, 191, 192, 193, 194, 231, 386, 387, 401, 402]) &&
oneOf("log.ResultStatus", ["Succeeded", "Success", "Successful"]) &&
!equals("action", "UserLoginFailed")
# ExchangeAdmin uses string True/False; these are not universal outcome codes.
- add:
function: string
params:
key: actionResult
value: success
where: equals("log.RecordType", 1) && equals("log.ResultStatus", "True")
# STS HTTP success and UserLoggedIn alone do not prove completed authentication.
# Require an explicit zero result code and reject contradictory/unknown errors.
# ErrorNumber is the corresponding field in observed STS audit records.
- add:
function: string
params:
key: actionResult
value: success
where: >-
equals("log.RecordType", 15) &&
(equals("log.ErrorCode", 0) || equals("log.ErrorNumber", 0)) &&
(!exists("log.ErrorCode") || equals("log.ErrorCode", 0)) &&
(!exists("log.ErrorNumber") || equals("log.ErrorNumber", 0)) &&
(!exists("log.LogonError") || regexMatch("log.LogonError", "^$")) &&
(!exists("log.ResultStatus") || oneOf("log.ResultStatus", ["Succeeded", "Success", "Successful"])) &&
!equals("action", "UserLoginFailed")
# Planner defines its own result enum. Audit records also emit its member names.
- add:
function: string
params:
key: actionResult
value: success
where: >-
oneOf("log.RecordType", [188, 189, 190, 191, 192, 193, 194, 231, 386, 387, 401, 402]) &&
(equals("log.ResultStatus", 1) || equals("log.ResultStatus", "Success"))
# Safe Links reports the navigation decision separately from event processing.
# Values 4/5 mean the user overrode the page and navigated; 3 remains pending.
- add:
function: string
params:
key: actionResult
value: success
where: equals("log.RecordType", 41) && oneOf("log.URLClickAction", [4, 5])
- add:
function: string
params:
key: actionResult
value: failure
where: >-
!oneOf("log.RecordType", [41, 188, 189, 190, 191, 192, 193, 194, 231, 386, 387, 401, 402]) &&
(oneOf("log.ResultStatus", ["Failure", "Failed"]) ||
(equals("log.RecordType", 1) && equals("log.ResultStatus", "False")))
- add:
function: string
params:
key: actionResult
value: failed
where: oneOf("log.ResultStatus", ["Failure", "Failed"])
value: failure
where: >-
equals("log.RecordType", 15) &&
(greaterThan("log.ErrorCode", 0) || regexMatch("log.LogonError", "(?s)^.+$"))
- add:
function: string
params:
key: actionResult
value: failure
where: >-
oneOf("log.RecordType", [188, 189, 190, 191, 192, 193, 194, 231, 386, 387, 401, 402]) &&
(equals("log.ResultStatus", 2) || equals("log.ResultStatus", "Failure"))
- add:
function: string
params:
key: actionResult
value: denied
where: >-
!oneOf("log.RecordType", [41, 188, 189, 190, 191, 192, 193, 194, 231, 386, 387, 401, 402]) &&
equals("log.ResultStatus", "Blocked")
- add:
function: string
params:
key: actionResult
value: denied
where: >-
oneOf("log.RecordType", [188, 189, 190, 191, 192, 193, 194, 231, 386, 387, 401, 402]) &&
(equals("log.ResultStatus", 3) || equals("log.ResultStatus", "AuthorizationFailure"))
# These exact operation names describe prevented user access, not successful
# administrative changes to a blocking policy.
- add:
function: string
params:
key: actionResult
value: denied
where: >-
oneOf("action", ["SharingInvitationBlocked", "UnmanagedSyncClientBlocked", "URLNavigationBlocked", "AccessRequestDenied"]) ||
(equals("log.RecordType", 41) && equals("log.URLClickAction", 2))
# KmsiInterrupt is the expected "Keep me signed in" prompt, not a final result.
- delete:
fields:
- actionResult
where: >-
equals("log.RecordType", 15) &&
(equals("log.ErrorCode", 50140) || equals("log.ErrorNumber", 50140))
# A failed login wins even when its HTTP request or audit operation succeeded.
- add:
function: string
params:
key: actionResult
value: failure
where: equals("action", "UserLoginFailed")
- dynamic:
plugin: com.utmstack.geolocation
params:
Expand Down Expand Up @@ -141,24 +287,23 @@ pipeline:
- log.ItemName
to: target.filename
where: equals("log.Workload", "OneDrive") || equals("log.Workload", "SharePoint")
- add:
function: string
params:
key: actionResult
value: success
where: equals("log.ResultStatus", "PartiallySucceeded")
- add:
function: string
params:
key: actionResult
value: blocked
where: equals("log.ResultStatus", "Blocked")
- add:
function: string
params:
key: actionResult
value: failed
where: equals("action", "UserLoginFailed")
# Safe Links supplies the clicking user's IP and destination URL under its own
# documented fields. Copy them so vendor-specific queries retain the originals.
- grok:
source: log.UserIp
patterns:
- fieldName: origin.ip
pattern: (?s:.*)
where: >-
equals("log.RecordType", 41) &&
(inCIDR("log.UserIp", "0.0.0.0/0") || inCIDR("log.UserIp", "::/0")) &&
!inCIDR("log.UserIp", "0.0.0.0/32") && !inCIDR("log.UserIp", "::/128")
- grok:
source: log.URL
patterns:
- fieldName: target.url
pattern: (?s:.*)
where: equals("log.RecordType", 41) && regexMatch("log.URL", "(?s)^.+$")
- delete:
fields:
- log.AppAccessContext
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