Seeing new apps in your settings that you didn't download, often with generic names like "System Service" or "Device Health". 2. Immediate Removal Steps
Random restarts, apps crashing, or a noticeably slower phone.
Background apps are uploading large amounts of data.
If you have installed a MOD APK recently, watch for these "red flags":
It sounds like you may have encountered a warning or a search result related to spyware in "MOD APK" files (modified Android app files). These modified versions of popular apps are a common source of malware and spyware. 1. How to Identify Spyware on Your Device
The device gets hot or loses charge quickly while idle.