Malware
DCSrv
aka DCrSrv
A ransomware as used by MosesStaff, built around the DiskCryptor tool.
DCSrv, also known as DCrSrv, is a Windows malware family.
Background
A ransomware family deployed by MosesStaff that is built on top of the DiskCryptor tool.
Source: Malpedia (Fraunhofer FKIE).