sihnon% sudo xbps-install -R repo/vscl -Sy vscl
[*] Updating `repo/vscl/x86_64-repodata' ...
x86_64-repodata: 1374B [avg rate: 15MB/s]
[*] Updating `http://mirror/current/x86_64-repodata' ...
[*] Updating `http://mirror/current/multilib/nonfree/x86_64-repodata' ...
[*] Updating `http://mirror/current/multilib/x86_64-repodata' ...
[*] Updating `http://mirror/current/nonfree/x86_64-repodata' ...

Name Action    Version           New version            Download size
vscl install   -                 6.1.0_1                2691KB

Size to download:             2692KB
Size required on disk:          11MB
Free space on disk:             94GB


[*] Downloading binary packages
vscl-6.1.0_1.x86_64.xbps: 2691KB [avg rate: 1400MB/s]
vscl-6.1.0_1.x86_64.xbps.sig: 256B [avg rate: 2000KB/s]

[*] Verifying package integrity
vscl-6.1.0_1: verifying RSA signature...

[*] Running transaction tasks
vscl-6.1.0_1: unpacking ...

[*] Configuring unpacked packages
vscl-6.1.0_1: configuring ...
vscl-6.1.0_1: post-install message:
========================================================================
Run vscl-update after installation to fetch latest signatures.
========================================================================
vscl-6.1.0_1: installed successfully.

1 downloaded, 1 installed, 0 updated, 1 configured, 0 removed.
sihnon% sudo vscl-update
Fetching avvdat-8824.zip
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 99.6M  100 99.6M    0     0  5222k      0  0:00:19  0:00:19 --:--:-- 5505k
Archive:  avvdat-8824.zip
  inflating: /usr/share/vscl/avvclean.dat
  inflating: /usr/share/vscl/avvnames.dat
  inflating: /usr/share/vscl/avvscan.dat
McAfee VirusScan Command Line for Linux64 Version: 6.1.0.155
Copyright (C) 2016 McAfee, Inc.
(408) 988-3832 LICENSED COPY - March 06 2018

AV Engine version: 5900.7806 for Linux64.
Dat set version: 8824 created Mar 6 2018
Scanning for 668685 viruses, trojans and variants.

sihnon% sudo xbps-pkgdb vscl
sihnon% # It works!