MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
Rule body
id: 61f995d7-8038-4ff0-ad2b-eccfd18fcc8c
name: OCI - Discovery activity
description: |
'Detects possible discovery activity.'
severity: Medium
status: Available
requiredDataConnectors:
- connectorId: OracleCloudInfrastructureLogsConnector
dataTypes:
- OCILogs
- connectorId: OracleCloudInfraConnector
dataTypes:
- OCI_LogsV2_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- Discovery
relevantTechniques:
- T1580
query: |
let threshold = 20;
OCILogs
| where data_eventName_s startswith 'List' or data_eventName_s startswith 'Get'
| summarize count() by data_definedTags_Oracle_Tags_CreatedBy_s, bin(TimeGenerated, 10m)
| where count_ > threshold
| extend AccountCustomEntity = data_definedTags_Oracle_Tags_CreatedBy_s
entityMappings:
- entityType: Account
fieldMappings:
- identifier: Name
columnName: AccountCustomEntity
version: 1.0.1
kind: Scheduled
Stages and Predicates
Parameters
let threshold = 20;
Stage 1: source
OCILogs
Stage 2: where
| where data_eventName_s startswith 'List' or data_eventName_s startswith 'Get'
Stage 3: summarize
| summarize count() by data_definedTags_Oracle_Tags_CreatedBy_s, bin(TimeGenerated, 10m)
Stage 4: where
| where count_ > threshold
Stage 5: extend
| extend AccountCustomEntity = data_definedTags_Oracle_Tags_CreatedBy_s
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
count_ | gt |
| field:"count_" kind:gt value:"20" |
data_eventName_s | starts_with |
| field:"data_eventName_s" kind:starts_with |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
data_definedTags_Oracle_Tags_CreatedBy_s | summarize |
AccountCustomEntity | extend |