Detection of Stored Application Data

Technique Detected:  Stored Application Data | T1409

ID: DET0621
Domains: Mobile
Analytics: AN1683, AN1684
Version: 1.0
Created: 21 October 2025
Last Modified: 12 May 2026

Analytics

AN1683

For Android, detect Stored Application Data by correlating analyst-visible device/network evidence and management state; use streaming or batched telemetry only where the documented collector is deployed. Correlate Application Permission via Android Enterprise DPC / Application Vetting [DevicePolicyManager.getPermissionGrantState(); PackageManager manifest/requested-permission review]; File Access via Application Vetting / Forensic Acquisition [Dynamic filesystem trace or acquired app-container/filesystem artifacts: open() for read on path IN /sdcard/ OR on path with file_permissions=777]; 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.

Log Sources
Data Component Name Channel
Application Permission (DC0114) android:DevicePolicyManager DevicePolicyManager.getPermissionGrantState(); PackageManager manifest/requested-permission review
File Access (DC0055) mobile:ForensicArtifacts Dynamic filesystem trace or acquired app-container/filesystem artifacts: open() for read on path IN /sdcard/ OR on path with file_permissions=777
Network Traffic Flow (DC0078) android:EnterpriseNetworkLog DevicePolicyManager.retrieveNetworkLogs(): DnsEvent / ConnectEvent; VPN flow metadata
Mutable Elements
Field Description
HighValueAppList Banking, email, authenticator, messaging app packages. Derive from MDM app catalog by data-sensitivity tier.
ApprovedStorageReaders Media players, file managers, MDM agent. Derive from MDM catalog.
UplinkThreshold Default 500KB. Tightening: 100KB. Derive from per-app upload baseline.
AppCDNList Per-app known upload destinations. Derive by measurement.
ExfilWindow Default 120s.

AN1684

For iOS, detect Stored Application Data 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.

Log Sources
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
Mutable Elements
Field Description
HighValueAppList Banking, authentication, enterprise email, cryptocurrency wallet bundle IDs. Derive from MDM app catalog by data-sensitivity tier.
DataDumpMin Default 50KB — minimum for meaningful app database content.
DataDumpMax Default 10MB — cap to exclude media exfil which is larger.
AppCDNList Per-device CDN baseline, 30-day.
ExfilWindow Default 300s after jailbreak detection.