Oracle - Multiple client errors from single IP

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Id	41775080-5740-11ec-bf63-0242ac130002
Rulename	Oracle - Multiple client errors from single IP
Description	Detects multiple client errors from one source in short timeframe
Severity	Medium
Tactics	InitialAccess
Techniques	T1190 T1133
Required data connectors	CustomLogsAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicMultipleClientErrorsFromSingleIP.yaml
Version	1.0.3
Arm template	41775080-5740-11ec-bf63-0242ac130002.json

KQL

let threshold = 100;
OracleWebLogicServerEvent
| where HttpStatusCode >= 400 and HttpStatusCode <= 499 
| summarize MultipleClientErrors = count() by SrcIpAddr, bin(TimeGenerated, 5m)
| where MultipleClientErrors > threshold
| extend IPCustomEntity = SrcIpAddr

YAML

description: |
    'Detects multiple client errors from one source in short timeframe'
kind: Scheduled
tactics:
- InitialAccess
requiredDataConnectors:
- connectorId: CustomLogsAma
  dataTypes:
  - OracleWebLogicServer_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicMultipleClientErrorsFromSingleIP.yaml
severity: Medium
name: Oracle - Multiple client errors from single IP
triggerThreshold: 0
queryPeriod: 1h
query: |
  let threshold = 100;
  OracleWebLogicServerEvent
  | where HttpStatusCode >= 400 and HttpStatusCode <= 499 
  | summarize MultipleClientErrors = count() by SrcIpAddr, bin(TimeGenerated, 5m)
  | where MultipleClientErrors > threshold
  | extend IPCustomEntity = SrcIpAddr  
relevantTechniques:
- T1190
- T1133
id: 41775080-5740-11ec-bf63-0242ac130002
queryFrequency: 1h
status: Available
triggerOperator: gt
version: 1.0.3
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address

ARM