After flashing a custom ROM, Google apps (GApps) are often not included for licensing reasons. Users must flash a GApps package, but advanced users might manually push the Phonesky.apk to the system partition.
Analyze Phonesky’s onRequestDownloads() methods to detect if malware hijacked the download manager. Look for: Play Store Phonesky Apk--
: Phonesky is not open-source. It is part of Google Mobile Services (GMS), which Google uses to maintain control over the Android experience. To have the Play Store, manufacturers must follow strict Google rules. After flashing a custom ROM, Google apps (GApps)
: For users who want "de-Googled" phones or custom software (like LineageOS), Phonesky is the primary target for replacement. After flashing a custom ROM
On Android devices, Phonesky.apk is the system file name for the Google Play Store application. Stack Overflow