mkdir chkrootkit; wget ftp://ftp.pangeia.com.br/pub/seg/pac/chkrootkit.tar.gz -O- | tar zx --strip-components=1 -C chkrootkit; chkrootkit/chkrootkit | grep -v 'nothing found' | grep -v 'not infected' | grep -v 'not tested' | grep -v 'not found'
mkdir rkhunter; wget http://downloads.sourceforge.net/sourceforge/rkhunter/rkhunter-1.3.8.tar.gz -O- | tar zx --strip-components=1 -C rkhunter; cd rkhunter; ./installer.sh --layout /usr/local --install; /usr/local/bin/rkhunter --check --quiet
or:
wget -O- http://is.gd/chkrks | bash