Access Notifications
Where this stands
No Sigma rule can address this — the telemetry MITRE names has no Sigma logsource behind it.
Sigma has no logsource taxonomy for mobile platforms. MITRE's telemetry here is mobile EDR and device APIs, which no Sigma rule can address.
What the technique is
Adversaries may collect data within notifications sent by the operating system or other applications. Notifications may contain sensitive data such as one-time authentication codes sent over SMS, email, or other mediums. In the case of Credential Access, adversaries may attempt to intercept one-time code sent to the device. Adversaries can also dismiss notifications to prevent the user from noticing that the notification has arrived and can trigger action buttons contained within notifications.
Read it on attack.mitre.orgWhat MITRE says you would watch
- AN1665
An application is granted or maintains notification listener access, observes notification content from other applications (including sensitive sources such as SMS/email/2FA apps), processes or stores notification payloads, and optionally suppresses or programmatically interacts with notifications (dismiss/action triggers) without corresponding foreground user interaction. Detection correlates special access permission state + notification event interception + application background state + downstream data use (local write or network transmission).
Technique names and descriptions © MITRE ATT&CK®, CC BY 4.0. Not endorsed by MITRE.