Malware
Remcos
aka RemcosRAT · Remvio · Socmer
Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.
Remcos, also known as RemcosRAT, Remvio, Socmer, is a Windows malware family operated by APT33, The Gorgon Group and others.
Background
Remcos, short for Remote Control & Surveillance Software, is a commercial Remote Access Tool used to operate computers from a distance.
Though marketed as legitimate software for surveillance and penetration-testing work, it has featured in many malicious campaigns. After it is installed, Remcos sets up a backdoor that hands the remote operator complete control of the machine. The tool is produced by the cybersecurity firm BreakingSecurity.
Source: Malpedia (Fraunhofer FKIE).