THREAT-408 Notion.Many.Pages.Deleted -> Scheduled Rule (#1423)

Co-authored-by: Ariel Ropek <79653153+arielkr256@users.noreply.github.com>
Co-authored-by: Ariel <ariel.ropek@panther.com>

packs/notion.yml

@@ -7,7 +7,7 @@ PackDefinition:
     - Notion.PagePerms.GuestPermsChanged
     - Notion.LoginFromNewLocation
     - Notion.Many.Pages.Exported
-    - Notion.Many.Pages.Deleted
+    - Notion.Many.Pages.Deleted.Sched
     - Notion.PagePerms.APIPermsChanged
     - Notion.PageSharedToWeb
     - Notion.SAML.SSO.Configuration.Changed
@@ -16,6 +16,8 @@ PackDefinition:
     - Notion.Workspace.Public.Page.Added
     - Notion.SharingSettingsUpdated
     - Notion.TeamspaceOwnerAdded
+    # Scheduled Queries
+    - Notion Many Pages Deleted Query
     # Correlation Rules
     - Notion.Login.FOLLOWED.BY.AccountChange
     # Signal Rules

queries/notion_queries/notion_many_pages_deleted_query.yml

@@ -0,0 +1,29 @@
+AnalysisType: scheduled_query
+QueryName: Notion Many Pages Deleted Query
+Enabled: false
+Tags:
+  - Notion
+  - Data Security
+  - Data Destruction
+Description: >
+  A Notion User deleted multiple pages, which were not created or restored from the trash within the same hour.
+Query: |
+  SELECT
+    event:actor.person.email AS user
+    ,ARRAY_AGG(event:type) AS actions
+    ,event:details.page_name AS page_name
+    ,event:details.target.page_id AS id
+  FROM
+    panther_logs.public.notion_auditlogs
+  WHERE
+    p_occurs_since(1 hour)
+    AND event:type IN ('page.deleted','page.created','page.restored_from_trash')
+    AND event:details.target.type = 'page_id'
+    AND page_name != ''
+    AND event:actor.type = 'person'
+  GROUP BY id, user, page_name
+  HAVING 
+    actions = ARRAY_CONSTRUCT('page.deleted')
+Schedule:
+  RateMinutes: 60
+  TimeoutMinutes: 2

queries/notion_queries/notion_many_pages_deleted_sched.py

@@ -0,0 +1,7 @@
+def rule(_):
+    return True
+
+
+def title(event):
+    user = event.get("user", "<NO_USER_FOUND>")
+    return f"Notion User [{user}] deleted multiple pages."

queries/notion_queries/notion_many_pages_deleted_sched.yml

@@ -0,0 +1,29 @@
+AnalysisType: scheduled_rule
+Filename: notion_many_pages_deleted_sched.py
+RuleID: "Notion.Many.Pages.Deleted.Sched"
+DisplayName: "Notion Many Pages Deleted"
+Enabled: true
+ScheduledQueries:
+  - Notion Many Pages Deleted Query
+Tags:
+  - Notion
+  - Data Security
+  - Data Destruction
+Severity: Medium
+Description: A Notion User deleted multiple pages, which were not created or restored from the trash within the same hour.
+DedupPeriodMinutes: 60
+Threshold: 10 # Number of pages deleted; please change this value to suit your organization's needs.
+Runbook: Possible Data Destruction. Follow up with the Notion User to determine if this was done for a valid business reason.
+Reference: https://www.notion.so/help/duplicate-delete-and-restore-content
+Tests:
+  - Name: query_result
+    ExpectedResult: true
+    Log:
+      {
+        "actions": [
+          "page.deleted"
+        ],
+        "id": "1360a5bb-da41-8177-bedb-d015d012392a",
+        "page_name": "Newslette",
+        "user": "bob.ross@happytrees.com"
+      }

rules/notion_rules/notion_many_pages_deleted.yml

@@ -1,16 +1,17 @@
 AnalysisType: rule
 Filename: notion_many_pages_deleted.py
 RuleID: "Notion.Many.Pages.Deleted"
-DisplayName: "Notion Many Pages Deleted"
-Enabled: true
+DisplayName: "Notion Many Pages Deleted [Deprecated]"
+Enabled: false
 LogTypes:
   - Notion.AuditLogs
 Tags:
   - Notion
   - Data Security
   - Data Destruction
+  - Deprecated
 Severity: Medium
-Description: A Notion User deleted multiple pages.
+Description: (Deprecated due to false-positive rate) A Notion User deleted multiple pages.
 DedupPeriodMinutes: 60
 Threshold: 10 # Number of pages deleted; please change this value to suit your organization's needs.
 Runbook: Possible Data Destruction. Follow up with the Notion User to determine if this was done for a valid business reason.