Technical Analysis & Behavior
The Android package identifier 'com.system.user' is a known indicator of compromise (IoC) for the uMobix stalkerware spyware family. Also distributed under aliases: uMobix. Signed with developer SHA1 certificate 575F8E8A04A5967E... Stalkerware operators intentionally disguise 'com.system.user' as a generic Android system service, Wi-Fi updater, or battery manager so victims do not uninstall it from Settings > Apps. If 'com.system.user' is present on your device without your knowledge, revoke its Accessibility and Device Admin privileges immediately and run a full mobile antivirus scan.