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Egress Defend - Dangerous Link Click

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Ida896123e-03a5-4a4d-a7e3-fd814846dfb2
RulenameEgress Defend - Dangerous Link Click
DescriptionDefend has detected a user has clicked a dangerous link in their mailbox.
SeverityMedium
TacticsExecution
TechniquesT1204
T0853
Required data connectorsEgressDefend
KindScheduled
Query frequency30m
Query period30m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Egress Defend/Analytic Rules/DangerousLinksClicked.yaml
Version1.0.0
Arm templatea896123e-03a5-4a4d-a7e3-fd814846dfb2.json
Deploy To Azure
DefendAuditData
| where LinksClicked > 0
| where ThreatLevel == "dangerous" or ThreatLevel == "suspicious"
| extend Account_0_FullName = trim(@"[^@.\w]+",Recipients)
kind: Scheduled
triggerThreshold: 0
tags:
- Defend
id: a896123e-03a5-4a4d-a7e3-fd814846dfb2
customDetails:
  DefendSender: From
  timesClicked: LinksClicked
  DefendSenderIP: SenderIP
tactics:
- Execution
alertDetailsOverride:
  alertDisplayNameFormat: Alert - {{Account_0_FullName}} as clicked a suspicious link.
description: |
    'Defend has detected a user has clicked a dangerous link in their mailbox.'
requiredDataConnectors:
- dataTypes:
  - EgressDefend_CL
  connectorId: EgressDefend
queryPeriod: 30m
version: 1.0.0
severity: Medium
entityMappings:
- fieldMappings:
  - columnName: Account_0_FullName
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: SenderIP
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: Url
    identifier: Url
  entityType: URL
- fieldMappings:
  - columnName: Account_0_FullName
    identifier: MailboxPrimaryAddress
  entityType: Mailbox
queryFrequency: 30m
relevantTechniques:
- T1204
- T0853
status: Available
name: Egress Defend - Dangerous Link Click
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Egress Defend/Analytic Rules/DangerousLinksClicked.yaml
triggerOperator: gt
query: |
  DefendAuditData
  | where LinksClicked > 0
  | where ThreatLevel == "dangerous" or ThreatLevel == "suspicious"
  | extend Account_0_FullName = trim(@"[^@.\w]+",Recipients)