Detection of Compromise Client Software Binary

ID: DET0712
Domains: Mobile
Analytics: AN1838, AN1839
Version: 1.0
Created: 21 October 2025
Last Modified: 12 May 2026

Analytics

AN1838

For Android, detect Compromise Client Software Binary from documented management, network, or vetting evidence; treat state queries as periodic observations rather than real-time events. Correlate File Metadata via Application Vetting / Forensic Acquisition [Dynamic filesystem trace or acquired app-container/filesystem artifacts: file hash changes for binary at $SystemBinaryPaths$ relative to known-good baseline — hash deviation confirms modification]; File Modification via Application Vetting / Forensic Acquisition [Dynamic filesystem trace or acquired app-container/filesystem artifacts: write() to path IN $SystemBinaryPaths$ by process NOT IN $TrustedUpdateSources$]; Process Creation via Application Vetting / Managed Device Telemetry [execve() of modified binary (hash != baseline) — execution of modified binary is the persistence activation]. 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
File Metadata (DC0059) mobile:ForensicArtifacts Dynamic filesystem trace or acquired app-container/filesystem artifacts: file hash changes for binary at $SystemBinaryPaths$ relative to known-good baseline — hash deviation confirms modification
File Modification (DC0061) mobile:ForensicArtifacts Dynamic filesystem trace or acquired app-container/filesystem artifacts: write() to path IN $SystemBinaryPaths$ by process NOT IN $TrustedUpdateSources$
Process Creation (DC0032) mobile:DynamicAnalysis execve() of modified binary (hash != baseline) — execution of modified binary is the persistence activation
Mutable Elements
Field Description
SystemBinaryPaths /system/bin/, /system/xbin/, /system/vendor/bin/. Vary by OEM.
TrustedUpdateSources OTA update service, MDM agent. Derive from MDM platform documentation.
BinaryHashBaseline Known-good hash per binary per Android version. Update on each OS release.

AN1839

For iOS, detect Compromise Client Software Binary by correlating analyst-visible device/network evidence and management state; use streaming or batched telemetry only where the documented collector is deployed. Correlate File Metadata via Application Vetting / Forensic Acquisition [Dynamic filesystem trace or acquired app-container/filesystem artifacts: MDM supervised integrity_check=fail following jailbreak detection — integrity check failure on supervised Jamf/Intune enrolled device indicates filesystem modifications beyond passive jailbreak presence]; 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
File Metadata (DC0059) mobile:ForensicArtifacts Dynamic filesystem trace or acquired app-container/filesystem artifacts: MDM supervised integrity_check=fail following jailbreak detection — integrity check failure on supervised Jamf/Intune enrolled device indicates filesystem modifications beyond passive jailbreak presence
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
AppBaselineDomains Per-device CDN baseline.
PostModificationWindow Default 900s — MDM check-in interval.