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

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

ARM