Looks like a DNS hijacker. Following is the IP information http://filezilla-project.org should resolve into:
Name = filezilla-project.org
IPv4 = 5.9.7.212
IPv6 = 2a01:4f8:160:7342::2
It is dual-stack and has both an A and AAAA record.
Name = filezilla-project.org
IPv4 = 5.9.7.212
IPv6 = 2a01:4f8:160:7342::2
It is dual-stack and has both an A and AAAA record.