Copilot - Jailbreak Attempt Detected

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Id	e5f6a7b8-c9d0-41e2-f3a4-b5c6d7e8f9a0
Rulename	Copilot - Jailbreak Attempt Detected
Description	Detects jailbreak attempts in Copilot interactions where users are trying to bypass Copilot guardrails and security controls. This rule identifies prompt injection and LLM abuse scenarios that could lead to initial access, credential access, or system impact.
Severity	High
Tactics	InitialAccess CredentialAccess Impact
Techniques	T1078 T1110 T1565
Required data connectors	MicrosoftCopilot
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Copilot/Analytic Rules/CopilotJailbreakAttempt.yaml
Version	1.0.0
Arm template	e5f6a7b8-c9d0-41e2-f3a4-b5c6d7e8f9a0.json

KQL

CopilotActivity
| where RecordType == "CopilotInteraction"
| where LLMEventData has "JailbreakDetected"
| extend Data = parse_json(LLMEventData)
| extend Jailbreak = tostring(Data.Messages[0].JailbreakDetected)
| where Jailbreak == "true"
| project TimeGenerated, ActorName, AIModelName, Jailbreak

YAML

entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: ActorName
tactics:
- InitialAccess
- CredentialAccess
- Impact
requiredDataConnectors:
- dataTypes:
  - CopilotActivity
  connectorId: MicrosoftCopilot
id: e5f6a7b8-c9d0-41e2-f3a4-b5c6d7e8f9a0
severity: High
status: Available
query: |
  CopilotActivity
  | where RecordType == "CopilotInteraction"
  | where LLMEventData has "JailbreakDetected"
  | extend Data = parse_json(LLMEventData)
  | extend Jailbreak = tostring(Data.Messages[0].JailbreakDetected)
  | where Jailbreak == "true"
  | project TimeGenerated, ActorName, AIModelName, Jailbreak  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Copilot/Analytic Rules/CopilotJailbreakAttempt.yaml
kind: Scheduled
queryPeriod: 5m
version: 1.0.0
name: Copilot - Jailbreak Attempt Detected
queryFrequency: 5m
triggerThreshold: 0
relevantTechniques:
- T1078
- T1110
- T1565
description: |
  'Detects jailbreak attempts in Copilot interactions where users are trying to bypass Copilot guardrails and security controls.
  This rule identifies prompt injection and LLM abuse scenarios that could lead to initial access, credential access, or system impact.'  
triggerOperator: gt

ARM