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| 1 | +# Databricks notebook source |
| 2 | +# MAGIC %run ../../lib/common |
| 3 | + |
| 4 | +# COMMAND ---------- |
| 5 | + |
| 6 | +# MAGIC %md |
| 7 | +# MAGIC ```yaml |
| 8 | +# MAGIC dscc: |
| 9 | +# MAGIC author: David Veuve - Databricks |
| 10 | +# MAGIC created: '2025-06-04T12:00:00' |
| 11 | +# MAGIC modified: '2025-06-04T12:00:00' |
| 12 | +# MAGIC uuid: 1a2b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d |
| 13 | +# MAGIC content_type: detection |
| 14 | +# MAGIC detection: |
| 15 | +# MAGIC name: Account Level Configuration Changes |
| 16 | +# MAGIC description: Detects when users modify account-level settings, which could |
| 17 | +# MAGIC indicate privilege escalation attempts or unauthorized administrative changes |
| 18 | +# MAGIC to tenant-wide configurations. |
| 19 | +# MAGIC objective: 'Identify potentially suspicious account-level configuration changes |
| 20 | +# MAGIC that could affect the entire Databricks tenant. These modifications might |
| 21 | +# MAGIC indicate attempts to escalate privileges, weaken security controls, or |
| 22 | +# MAGIC establish persistence at the tenant level. Maps to MITRE ATT&CK TA0004 |
| 23 | +# MAGIC - Privilege Escalation - T1484 - Domain or Tenant Policy Modification.' |
| 24 | +# MAGIC taxonomy: |
| 25 | +# MAGIC - MITRE.TA0004.Privilege_Escalation |
| 26 | +# MAGIC - MITRE.T1484.Domain_or_Tenant_Policy_Modification |
| 27 | +# MAGIC fidelity: low |
| 28 | +# MAGIC category: DETECTION |
| 29 | +# MAGIC false_positives: unknown |
| 30 | +# MAGIC severity: low |
| 31 | +# MAGIC platform: |
| 32 | +# MAGIC - databricks |
| 33 | +# MAGIC dscc-tests: |
| 34 | +# MAGIC tests: |
| 35 | +# MAGIC - function: configuration_changes_account_level |
| 36 | +# MAGIC input: |
| 37 | +# MAGIC earliest: '2025-01-01' |
| 38 | +# MAGIC latest: '2025-02-25' |
| 39 | +# MAGIC expect: |
| 40 | +# MAGIC count: '>0' |
| 41 | +# MAGIC schema: [] |
| 42 | +# MAGIC data: null |
| 43 | +# MAGIC mocked_inputs: |
| 44 | +# MAGIC - table: system.access.audit |
| 45 | +# MAGIC path: None |
| 46 | +# MAGIC required_columns: |
| 47 | +# MAGIC - EVENT_TIME |
| 48 | +# MAGIC - SERVICE_NAME |
| 49 | +# MAGIC - ACTION_NAME |
| 50 | +# MAGIC - ACTION_DESCRIPTION |
| 51 | +# MAGIC - USER_EMAIL |
| 52 | +# MAGIC - USER_AGENT |
| 53 | +# MAGIC - SOURCE_IP_ADDRESS |
| 54 | +# MAGIC - REQUEST_PARAMS |
| 55 | +# MAGIC - event_time |
| 56 | +# MAGIC - service_name |
| 57 | +# MAGIC - action_name |
| 58 | +# MAGIC - audit_level |
| 59 | +# MAGIC - user_identity.email |
| 60 | +# MAGIC - user_agent |
| 61 | +# MAGIC - source_ip_address |
| 62 | +# MAGIC - request_params |
| 63 | +# MAGIC ``` |
| 64 | + |
| 65 | +# COMMAND ---------- |
| 66 | + |
| 67 | +@detect(output=Output.asDataFrame) |
| 68 | +def configuration_changes_account_level(earliest: str = None, latest: str = None): |
| 69 | + from pyspark.sql.functions import (col, current_date, date_sub, current_timestamp, |
| 70 | + expr, to_timestamp, concat, lit) |
| 71 | + |
| 72 | + earliest = earliest or current_timestamp() - expr("INTERVAL 2 months") |
| 73 | + latest = latest or current_timestamp() |
| 74 | + |
| 75 | + df = spark.table("system.access.audit") |
| 76 | + |
| 77 | + # Filter for account-level setting changes |
| 78 | + df_filtered = df.filter( |
| 79 | + (col("audit_level") == "ACCOUNT_LEVEL") & |
| 80 | + (col("action_name") == "setSetting") & |
| 81 | + (col("event_time").between(earliest, latest)) |
| 82 | + ).select( |
| 83 | + to_timestamp(col("event_time")).alias("EVENT_TIME"), |
| 84 | + col("service_name").alias("SERVICE_NAME"), |
| 85 | + col("action_name").alias("ACTION_NAME"), |
| 86 | + concat( |
| 87 | + col("action_name"), |
| 88 | + lit(" for "), |
| 89 | + col("audit_level") |
| 90 | + ).alias("ACTION_DESCRIPTION"), |
| 91 | + col("user_identity.email").alias("USER_EMAIL"), |
| 92 | + col("user_agent").alias("USER_AGENT"), |
| 93 | + col("source_ip_address").alias("SOURCE_IP_ADDRESS"), |
| 94 | + col("request_params").alias("REQUEST_PARAMS") |
| 95 | + ).orderBy(col("EVENT_TIME").desc()) |
| 96 | + |
| 97 | + return df_filtered |
| 98 | + |
| 99 | +# COMMAND ---------- |
| 100 | + |
| 101 | +if __name__ == "__main__" or dbutils.widgets.get("earliest"): |
| 102 | + earliest, latest = get_time_range_from_widgets() |
| 103 | + display(configuration_changes_account_level( |
| 104 | + earliest=dbutils.widgets.get("earliest"), |
| 105 | + latest=dbutils.widgets.get("latest") |
| 106 | + )) |
| 107 | +# COMMAND ---------- |
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