Ransomware
Slocker
aka Jisut · Simple Locker
Slocker also known as jisut and pigetrl, is a screen locker that is distributed through telegram groups.
Slocker, also known as Jisut, Simple Locker, is a Android ransomware.
Background
Slocker, which also goes by jisut and pigetrl, is a screen-locking threat spread via telegram groups.
Source: Malpedia (Fraunhofer FKIE).