The websites of Australian Prime Minister Kevin Rudd and the Australian Communications and Media Authority (ACMA) were hit by a distributed denial-of-service attack (DDoS).

Australia's IT News claimed that a group of protesters calling themselves ‘Anonymous' apparently launched the attack to protest against the government's proposed web filter, which the group described as ‘draconian internet censorship'.

According to the Australian Associated Press, both the Prime Minister's and the ACMA websites were offline for about an hour from 7.20pm on Wednesday evening.

The website of communications minister Stephen Conroy was also attacked but remained accessible. He described the attack as 'juvenile'.

The group had posted a warning on the inquisitr website, claiming it was ‘protecting your rights' and said that Rudd and Conroy are planning to filter the internet and block legal content from most of the world. It said ‘the government is trying to keep the blacklist a secret' and demanded there be no internet filter and the resignation of Conroy.

It later claimed that it was: “Declaring war on the Australian government over its decision to implement draconian internet censorship. We're tracking the attack blow by blow, without taking part.”

A live detail of the attack, which last 27 minutes, was given. After five minutes it claimed that the ‘Ministers page is slow to load, but still up' and after ten minutes ‘still up, but slow. The DoS isn't working, least on the Australian end'.

At 7.18pm it claimed that Rudd's page was down, which lasted for seven minutes and during which time it claimed ‘Strike one to Anonymous'. However 27 minutes in, the detail read: “Either Anonymous failed, or the Australian government over prepared. Sadly the raid failed because the target sites remain up. Anonymous had failed today. They'll learn though from this, and be more powerful next time.”