Flagged here: https://palevotracker.abuse.ch/?ipaddress=31.170.179.179
re: https://www.virustotal.com/en/ip-address/31.170.179.179/information/
Here all given as dead: http://support.clean-mx.de/clean-mx/viruses.php?sort=firstseen%20desc&review=31.170.179.179
However blacklisted here: http://www.ipvoid.com/scan/31.170.179.179/
See: http://www.urlvoid.com/ip/31.170.179.179

pol