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

ARM