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
description: |
'Detects when user queries sensitive tables.'
status: Available
tactics:
- Collection
triggerOperator: gt
queryFrequency: 30m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleDatabaseAudit/Analytic Rules/OracleDBAuditQueryOnSensitiveTable.yaml
id: d7fdcad5-ce96-4db6-9a5e-4a86a5166e5e
version: 1.0.3
requiredDataConnectors:
- datatypes:
- Syslog
connectorId: SyslogAma
triggerThreshold: 0
queryPeriod: 30m
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
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: AccountCustomEntity
relevantTechniques:
- T1005
name: OracleDBAudit - Query on Sensitive Table
severity: Medium
kind: Scheduled
