Acronis - Multiple Endpoints Accessing Malicious URLs

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Id	1385f0ce-69d9-4abf-8039-52080c8c7017
Rulename	Acronis - Multiple Endpoints Accessing Malicious URLs
Description	Multiple endpoints accessing malicious URLs could indicate an ongoing phishing attack, with several employees interacting with those URLs.
Severity	Medium
Tactics	Execution
Techniques	T1204.001
Kind	Scheduled
Query frequency	1h
Query period	1d
Trigger threshold	2
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Acronis Cyber Protect Cloud/Analytic Rules/AcronisMultipleEndpointsAccessingMaliciousURLs.yaml
Version	1.0.0
Arm template	1385f0ce-69d9-4abf-8039-52080c8c7017.json

KQL

CommonSecurityLog
| where DeviceVendor == "Acronis"
| where DeviceEventClassID == "MaliciousUrlDetected"
| summarize MaliciousUrlDetected = count() by DeviceName

YAML

kind: Scheduled
requiredDataConnectors: []
triggerThreshold: 2
triggerOperator: gt
version: 1.0.0
tactics:
- Execution
queryPeriod: 1d
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AnyAlert
    enabled: true
    lookbackDuration: P1D
    reopenClosedIncident: true
queryFrequency: 1h
id: 1385f0ce-69d9-4abf-8039-52080c8c7017
eventGroupingSettings:
  aggregationKind: SingleAlert
relevantTechniques:
- T1204.001
description: Multiple endpoints accessing malicious URLs could indicate an ongoing phishing attack, with several employees interacting with those URLs.
customDetails:
  DeviceName: DeviceName
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: DeviceName
    identifier: HostName
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Acronis Cyber Protect Cloud/Analytic Rules/AcronisMultipleEndpointsAccessingMaliciousURLs.yaml
name: Acronis - Multiple Endpoints Accessing Malicious URLs
severity: Medium
query: |
  CommonSecurityLog
  | where DeviceVendor == "Acronis"
  | where DeviceEventClassID == "MaliciousUrlDetected"
  | summarize MaliciousUrlDetected = count() by DeviceName

ARM