RAT
Parallax RAT
aka ParallaxRAT
Parallax is a Remote Access Trojan used by attackers to gain access to a victim's machine.
Parallax RAT, also known as ParallaxRAT, is a Windows rat.
Background
Parallax is a Remote Access Trojan that attackers deploy to obtain access to a victim's machine. It featured in one of the numerous notorious "coronamalware" campaigns, where the operators exploited COVID-19 pandemic news to trick victims into opening themed emails that delivered Parallax.
Source: Malpedia (Fraunhofer FKIE).