As of 05 Feb 2019

ANTs: ANTs.zip compiled on 08 Mar 2019
Matlab R2017a Runtime: MCR_R2017a_glnxa64_installer.zip
ROBEX: ROBEXv12.linux64.tar.gz
Slicer: Slicer-4.10.1-linux-amd64.tar.gz
ALIZA: aliza_1.48.8.8.deb
c3d: c3d-1.0.0-Linux-x86_64.tar.gz
CONN17f standalone: conn17f_glnxa64.zip
CONN18a standalone: conn18a_glnxa64.zip compiled on 15 Sep 2018
DSI Studio:
  dsistudio1604.zip compiled on 16 Aug 2018
  dsistudio1804.zip compiled on 11 Aug 2018
itksnap: itksnap-3.6.0-20170401-Linux-x86_64.tar.gz
MRIcron: lx.zip (2016-10-12)
Mango: mango_unix.zip (Version 4.0.1 11-18-2016)
MRIcroGL: MRIcroGL12_linux.zip (14-Nov-2018)
dcm2niix: dcm2niix_25-Nov-2018_lnx.zip (25-Nov-2018)
SPM12 standalone: spm12_standalone.zip compiled on 2 Jan 2018
Tutorial by Chris Rorden: tutorial.zip (Downloaded on 17 Mar 2018 from http://people.cas.sc.edu/rorden/SW/tutorial/tutorial.zip)

These are stored locally on Dropbox/l4nsoftware
Remote files are located on http://www.lin4neuro.net/lin4neuro/neuroimaging_software_packages/