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

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

ARM