Malware
DownEx
According to Bitdefender, this is an exfiltration tool, scanning local and network drives for sensitive files, like documents, archives, certificates, and cryptographic keys.
DownEx is a Windows malware family operated by UAC-0063.
Background
Bitdefender characterizes this as an exfiltration tool that searches local and network drives for sensitive material such as documents, archives, certificates, and cryptographic keys.
Source: Malpedia (Fraunhofer FKIE).