Random restarts, apps crashing, or a noticeably slower phone.
If you have installed a MOD APK recently, watch for these "red flags": You searched for SpyWare - Software & MOD APK Files
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 Random restarts, apps crashing, or a noticeably slower phone
The device gets hot or loses charge quickly while idle. You searched for SpyWare - Software & MOD APK Files