Detection of Abuse Accessibility Features

ID: DET0697
Domains: Mobile
Analytics: AN1812
Version: 1.0
Created: 21 October 2025
Last Modified: 12 May 2026

Analytics

AN1812

For Android, detect Abuse Accessibility Features by correlating analyst-visible device/network evidence and management state; use streaming or batched telemetry only where the documented collector is deployed. Correlate API Calls via Application Vetting / Instrumented Dynamic Analysis [Dynamic API/runtime trace: AccessibilityService receiving events from dc(source_app) > $AccessibilityTargetThreshold$ distinct apps INCLUDING apps IN $TargetAppList$ — broad monitoring across apps distinguishes malware from single-purpose assistive tech]; Network Traffic Content via Enterprise Secure Web Gateway / Proxy [DNS/HTTP(S) inspection or proxy transaction metadata where enterprise decryption/inspection is deployed]; Permissions Request via Android Enterprise DPC / Application Vetting [DevicePolicyManager.getPermissionGrantState(); PackageManager manifest/requested-permission review]. 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
API Calls (DC0112) mobile:DynamicAnalysis Dynamic API/runtime trace: AccessibilityService receiving events from dc(source_app) > $AccessibilityTargetThreshold$ distinct apps INCLUDING apps IN $TargetAppList$ — broad monitoring across apps distinguishes malware from single-purpose assistive tech
Network Traffic Content (DC0085) webproxy:applog DNS/HTTP(S) inspection or proxy transaction metadata where enterprise decryption/inspection is deployed
Permissions Request (DC0116) android:DevicePolicyManager DevicePolicyManager.getPermissionGrantState(); PackageManager manifest/requested-permission review
Mutable Elements
Field Description
AccessibilityAllowList Approved screen readers, assistive tech. Minimal. Derive from MDM catalog.
AccessibilityTargetThreshold Default 5 distinct source apps — monitors broadly vs narrowly.
TargetAppList Banking, auth, enterprise SSO, SMS app packages.
AppCDNList Per-app CDN. Derive by measurement.
AccessibilityExfilWindow Default 300s.