Attack on helltracker.cz from the cloud Avast

For several days it takes offense to my site. Among other things, was found to be the source of attacks Avast server.

by IP:
http://www.dnsinspect.com/emfme.net
http://www.ip.downappz.com/ip/77.234.41.181

IP: 77.234.47.11
Decimal: 1307193099
Hostname: y.ns.avast.com
ISP: AVAST Software a.s.
Organization: AVAST Software a.s.

(translate Google)