Detection rules › Kusto
OCI - Multiple instances terminated
'Detects when multiple instances were terminated.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Impact |
Rule body
id: 252e651d-d825-480c-bdeb-8b239354577d
name: OCI - Multiple instances terminated
description: |
'Detects when multiple instances were terminated.'
severity: High
status: Available
requiredDataConnectors:
- connectorId: OracleCloudInfrastructureLogsConnector
dataTypes:
- OCILogs
- connectorId: OracleCloudInfraConnector
dataTypes:
- OCI_LogsV2_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- Impact
relevantTechniques:
- T1529
query: |
let threshold = 5;
OCILogs
| where data_eventName_s =~ 'TerminateInstance'
| summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)
| where count_ >= threshold
| extend IPCustomEntity = SrcIpAddr
entityMappings:
- entityType: IP
fieldMappings:
- identifier: Address
columnName: IPCustomEntity
version: 1.0.2
kind: Scheduled
Stages and Predicates
Parameters
let threshold = 5;
Stage 1: source
OCILogs
Stage 2: where
| where data_eventName_s =~ 'TerminateInstance'
Stage 3: summarize
| summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)
Stage 4: where
| where count_ >= threshold
Stage 5: extend
| extend IPCustomEntity = SrcIpAddr
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
count_ | ge |
| field:"count_" kind:ge value:"5" |
data_eventName_s | eq |
| field:"data_eventName_s" kind:eq value:"TerminateInstance" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
SrcIpAddr | summarize |
IPCustomEntity | extend |