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

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

ARM