For Android, detect File and Directory Discovery by correlating analyst-visible device/network evidence and management state; use streaming or batched telemetry only where the documented collector is deployed. Correlate Application State via Android Enterprise / EMM [Managed package inventory/status and package metadata]; File Access via Application Vetting / Forensic Acquisition [Dynamic filesystem trace or acquired app-container/filesystem artifacts: opendir() or File.listFiles() on path IN $ExternalStoragePaths$ called > $FileEnumThreshold$ times within $EnumWindow$ by app NOT IN $FileEnumAllowList$]; Network Traffic Flow via Android Enterprise Network Logging / Enterprise VPN [DevicePolicyManager.retrieveNetworkLogs(): DnsEvent / ConnectEvent; VPN flow metadata]. Alert on a sequence or state change inconsistent with the device/app baseline, approved management policy, or expected user workflow; do not infer unobserved API calls, file/process activity, or payload content from management state alone.
| Data Component | Name | Channel |
|---|---|---|
| Application State (DC0123) | android:EMM | Managed package inventory/status and package metadata |
| File Access (DC0055) | mobile:ForensicArtifacts | Dynamic filesystem trace or acquired app-container/filesystem artifacts: opendir() or File.listFiles() on path IN $ExternalStoragePaths$ called > $FileEnumThreshold$ times within $EnumWindow$ by app NOT IN $FileEnumAllowList$ |
| Network Traffic Flow (DC0078) | android:EnterpriseNetworkLog | DevicePolicyManager.retrieveNetworkLogs(): DnsEvent / ConnectEvent; VPN flow metadata |
| Field | Description |
|---|---|
| ExternalStoragePaths | /sdcard/, /storage/emulated/0/, /mnt/sdcard/. Vary by device. |
| FileEnumThreshold | Default 100 directory operations within window. Derive from baseline file manager behavior. |
| EnumWindow | Default 60s. |
| FileEnumAllowList | Approved file managers, media apps, MDM agent. |
| UplinkThreshold | Default 500KB. |
| AppCDNList | Per-app CDN. Derive by measurement. |
| ExfilWindow | Default 120s. |
For iOS, detect File and Directory Discovery by correlating analyst-visible device/network evidence and management state; use streaming or batched telemetry only where the documented collector is deployed. Correlate Application State via Apple MDM [InstalledApplicationList / ManagedApplicationList]; Host Status via Apple MDM [DeviceInformation / SecurityInfo / ProfileList / restrictions and compliance queries]; Network Traffic Flow via Apple Network Extension / Enterprise VPN [NEFilterFlow / per-app VPN / secure-web-gateway flow metadata]. Alert on a sequence or state change inconsistent with the device/app baseline, approved management policy, or expected user workflow; do not infer unobserved API calls, file/process activity, or payload content from management state alone.
| Data Component | Name | Channel |
|---|---|---|
| Application State (DC0123) | iOS:MDM | InstalledApplicationList / ManagedApplicationList |
| Host Status (DC0018) | iOS:MDM | DeviceInformation / SecurityInfo / ProfileList / restrictions and compliance queries |
| Network Traffic Flow (DC0078) | iOS:NetworkExtension | NEFilterFlow / per-app VPN / secure-web-gateway flow metadata |
| Field | Description |
|---|---|
| HighValueAppList | Banking, auth, enterprise apps with sensitive local data. |
| HighValueAppCount | Default 2 — single app could be accidental; multiple indicates targeted environment. |
| ConnectionBurstThreshold | Default 5 connections to same dest within window. |
| SmallRequestThreshold | Default 50KB per request — file listing and small file pickups. |
| ExfilWindow | Default 300s after jailbreak detection. |