Acronis - Login from Abnormal IP - Low Occurrence

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Id	84037130-a623-46c2-9144-0c0955ac4112
Rulename	Acronis - Login from Abnormal IP - Low Occurrence
Description	Suspicious login from an IP address observed up to two times in the last two weeks.
Severity	Medium
Tactics	InitialAccess
Techniques	T1078
Kind	Scheduled
Query frequency	1d
Query period	14d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Acronis Cyber Protect Cloud/Analytic Rules/AcronisLoginFromAbnormalIPLowOccurrence.yaml
Version	1.0.0
Arm template	84037130-a623-46c2-9144-0c0955ac4112.json

KQL

CommonSecurityLog
| where DeviceVendor == "Acronis audit"
| extend initiator_ip = tostring(parse_json(DeviceCustomString1).initiator_ip)
| summarize LoginCount = count() by initiator_ip
| where LoginCount <= 2
| order by LoginCount asc

YAML

queryPeriod: 14d
requiredDataConnectors: []
severity: Medium
triggerOperator: gt
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: initiator_ip
  entityType: IP
version: 1.0.0
triggerThreshold: 0
tactics:
- InitialAccess
relevantTechniques:
- T1078
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Acronis Cyber Protect Cloud/Analytic Rules/AcronisLoginFromAbnormalIPLowOccurrence.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
query: |
  CommonSecurityLog
  | where DeviceVendor == "Acronis audit"
  | extend initiator_ip = tostring(parse_json(DeviceCustomString1).initiator_ip)
  | summarize LoginCount = count() by initiator_ip
  | where LoginCount <= 2
  | order by LoginCount asc  
id: 84037130-a623-46c2-9144-0c0955ac4112
name: Acronis - Login from Abnormal IP - Low Occurrence
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    reopenClosedIncident: true
    matchingMethod: Selected
    enabled: true
    groupByEntities:
    - IP
    lookbackDuration: P7D
description: Suspicious login from an IP address observed up to two times in the last two weeks.
alertDetailsOverride:
  alertDynamicProperties: []
  alertDisplayNameFormat: Acronis - Login from Abnormal IP ({{initiator_ip}}) - Low Occurrence ({{LoginCount}})
kind: Scheduled
queryFrequency: 1d

ARM