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

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

ARM