Microsoft Sentinel Analytic Rules
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OCI - Unexpected user agent

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Ida0b9a7ca-3e6d-4996-ae35-759df1d67a54
RulenameOCI - Unexpected user agent
DescriptionDetects unexpected user agent strings.
SeverityMedium
TacticsInitialAccess
TechniquesT1190
Required data connectorsOracleCloudInfrastructureLogsConnector
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Oracle Cloud Infrastructure/Analytic Rules/OCIUnexpectedUserAgent.yaml
Version1.0.0
Arm templatea0b9a7ca-3e6d-4996-ae35-759df1d67a54.json
Deploy To Azure
OCILogs
| where isnotempty(HttpUserAgentOriginal)
| where strlen(HttpUserAgentOriginal) <= 10
| extend IPCustomEntity = SrcIpAddr
version: 1.0.0
tactics:
- InitialAccess
relevantTechniques:
- T1190
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
triggerThreshold: 0
name: OCI - Unexpected user agent
queryFrequency: 1h
triggerOperator: gt
kind: Scheduled
description: |
    'Detects unexpected user agent strings.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Oracle Cloud Infrastructure/Analytic Rules/OCIUnexpectedUserAgent.yaml
requiredDataConnectors:
- dataTypes:
  - OCILogs
  connectorId: OracleCloudInfrastructureLogsConnector
severity: Medium
query: |
  OCILogs
  | where isnotempty(HttpUserAgentOriginal)
  | where strlen(HttpUserAgentOriginal) <= 10
  | extend IPCustomEntity = SrcIpAddr  
queryPeriod: 1h
id: a0b9a7ca-3e6d-4996-ae35-759df1d67a54
status: Available