OracleDBAudit - Query on Sensitive Table

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Id	d7fdcad5-ce96-4db6-9a5e-4a86a5166e5e
Rulename	OracleDBAudit - Query on Sensitive Table
Description	Detects when user queries sensitive tables.
Severity	Medium
Tactics	Collection
Techniques	T1005
Required data connectors	SyslogAma
Kind	Scheduled
Query frequency	30m
Query period	30m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleDatabaseAudit/Analytic Rules/OracleDBAuditQueryOnSensitiveTable.yaml
Version	1.0.3
Arm template	d7fdcad5-ce96-4db6-9a5e-4a86a5166e5e.json

KQL

let sensitive_tbls = dynamic(['table_name1', 'table_name2']);
OracleDatabaseAuditEvent
| where isnotempty(DstUserName)
| where isnotempty(Action)
| extend TableName = replace(@'[,\(\)]', '', extract(@'(?i)SELECT(.*?)FROM\s(.*?)\s', 2, Action))
| where isnotempty(TableName)
| where TableName in (sensitive_tbls)
| project TableName, DstUserName, DbAction
| extend AccountCustomEntity = DstUserName

YAML

version: 1.0.3
description: |
    'Detects when user queries sensitive tables.'
queryPeriod: 30m
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
status: Available
id: d7fdcad5-ce96-4db6-9a5e-4a86a5166e5e
tactics:
- Collection
name: OracleDBAudit - Query on Sensitive Table
queryFrequency: 30m
triggerThreshold: 0
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleDatabaseAudit/Analytic Rules/OracleDBAuditQueryOnSensitiveTable.yaml
kind: Scheduled
relevantTechniques:
- T1005
query: |
  let sensitive_tbls = dynamic(['table_name1', 'table_name2']);
  OracleDatabaseAuditEvent
  | where isnotempty(DstUserName)
  | where isnotempty(Action)
  | extend TableName = replace(@'[,\(\)]', '', extract(@'(?i)SELECT(.*?)FROM\s(.*?)\s', 2, Action))
  | where isnotempty(TableName)
  | where TableName in (sensitive_tbls)
  | project TableName, DstUserName, DbAction
  | extend AccountCustomEntity = DstUserName  
severity: Medium
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog

ARM