venaima 3 and 4 for Debian 6 squeeze and Debian 7 wheeze:
some are able to install in Debian 5 lenny and Debian 4 etch;

* Debian 7.0:

echo 'deb http://download.opensuse.org/repositories/home:/venenux:/venaima4/Debian_7.0/ /' > /etc/apt/sources.list.d/home:venenux:venaima4.list
wget -nv https://download.opensuse.org/repositories/home:venenux:venaima4/Debian_7.0/Release.key -O Release.key
apt-key add - < Release.key
apt-get update
apt-get install microsocks

Debian 6.0:
echo 'deb http://download.opensuse.org/repositories/home:/venenux:/venaima4/Debian_6.0/ /' > /etc/apt/sources.list.d/home:venenux:venaima4.list
wget -nv https://download.opensuse.org/repositories/home:venenux:venaima4/Debian_6.0/Release.key -O Release.key
apt-key add - < Release.key
apt-get update
apt-get install microsocks