Ubiquiti - SSH from external source

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Id	0998a19d-8451-4cdd-8493-fc342816a197
Rulename	Ubiquiti - SSH from external source
Description	Detects remote to local (R2L) SSH connection to internal host.
Severity	Medium
Tactics	InitialAccess
Techniques	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/Ubiquiti UniFi/Analytic Rules/UbiquitiR2LSSH.yaml
Version	1.0.2
Arm template	0998a19d-8451-4cdd-8493-fc342816a197.json

KQL

UbiquitiAuditEvent
| where EventCategory =~ 'firewall'
| where ipv4_is_private(SrcIpAddr) == 'False'
| where ipv4_is_private(DstIpAddr)
| where DstPortNumber == '22'
| extend IPCustomEntity = DstIpAddr

YAML

status: Available
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
query: |
  UbiquitiAuditEvent
  | where EventCategory =~ 'firewall'
  | where ipv4_is_private(SrcIpAddr) == 'False'
  | where ipv4_is_private(DstIpAddr)
  | where DstPortNumber == '22'
  | extend IPCustomEntity = DstIpAddr  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Ubiquiti UniFi/Analytic Rules/UbiquitiR2LSSH.yaml
tactics:
- InitialAccess
triggerThreshold: 0
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
requiredDataConnectors:
- connectorId: CustomLogsAma
  dataTypes:
  - Ubiquiti_CL
kind: Scheduled
relevantTechniques:
- T1133
description: |
    'Detects remote to local (R2L) SSH connection to internal host.'
name: Ubiquiti - SSH from external source
version: 1.0.2
id: 0998a19d-8451-4cdd-8493-fc342816a197
severity: Medium

ARM