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

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

ARM