Malware
Epsilon Red
aka BlackCocaine
According to PCrisk, Epsilon is a ransomware-type program.
Epsilon Red, also known as BlackCocaine, is a Windows malware family.
Background
PCrisk classifies Epsilon as ransomware. The malware encrypts files on the systems it infects and then extorts the victim for payment in exchange for decryption.
Source: Malpedia (Fraunhofer FKIE).