Technical Analysis & Behavior
Package Analysis for 'com.sec.internal.vsim.VSimServiceApp' (Oem / Advanced Debloat Target): Non Sim Device Solution (NSDS) needed for VoLTE and VoWifi (Wifi Calling) if you have a virtual SIM. See com.sec.vsimservice Uses IMS service Android users frequently spot 'com.sec.internal.vsim.VSimServiceApp' running persistently in Battery Usage, Network Data Monitor, or Developer Running Services. Note: Malicious trojans and stalkerware APKs also frequently spoof legitimate Oem system package names like 'com.sec.internal.vsim.VSimServiceApp' to evade manual detection.