WikiLeaks founder Julian Assange has launched an astonishing attack on Hillary Clinton in an interview carried on the Kremlin's own television channel.

Assange, who has been holed up at the Ecuadorean embassy in London since 2012, lashed out at the Democratic presidential candidate after she pointed the finger at Moscow.

The Australian-born activist told RT, formerly Russia Today: 'I actually feel quite sorry for Hillary Clinton as a person, because I see someone who is eaten alive by their ambitions, tormented literally to the point where they become sick – for example faint – as a result of going on, and going with their ambitions.'

He was referring to her collapse at a 9/11 memorial in New York in September, which was attributed to a mild bout of pneumonia.

Hillary Clinton (pictured, left) has been pointing the finger at Russia over leaked emails and suggesting Vladimir Putin favors Donald Trump but Julian Assange (right) says she is wrong

Mr Assange (pictured in the window of the Ecuadorean embassy in 2012) denies rape allegations made against him in Sweden

Assange, who has been wanted since 2010 by the Swedish authorities over rape allegations, said: 'The Clinton camp has been able to project a neo-McCarthyist hysteria that Russia is responsible for everything.

'Hillary Clinton has stated multiple times, falsely, that 17 US intelligence agencies had assessed that Russia was the source of our publications. That's false – we can say that the Russian government is not the source.'

WikiLeaks has enraged Clinton and her campaign for uploading 20,000 emails from the US Democratic National Committee, exposing the party leadership's alleged bias towards Clinton and against rival Bernie Sanders.

The Department of Homeland Security Department and the Office of the Director of National Intelligence said last month they were 'confident' the Russian government was responsible for the leaks.

But Russia has denied this and presidential press secretary Dmitry Peskov said it was 'nonsense'.

In an interview with veteran John Pilger on RT, Assange said: 'We have independently authenticated the emails. WikiLeaks has a decade-long, perfect record in the accurate authentication of leaked documents.

Donald Trump has repeatedly questioned Hillary Clinton's fitness for office and claimed she endangered national security by hosting emails on a private server

'The original sources of the Podesta emails are Hillary Clinton campaign chairman John Podesta and his correspondents.'

Assange added: 'Saying nothing leads to a vacuum into which false claims about our sources can be projected. We tolerate such claims until they are used to distract from the publication.

'After careful consideration of the source protection requirements involved, we are confident that eliminating state parties does not appreciably increase the risks to our sources for this publication.'

The original sources of the Podesta emails are Hillary Clinton campaign chairman John Podesta and his correspondents Julian Assange

Assange, who also accused Clinton of being a pawn of vested interests, denies the rape allegations in Sweden and says he believes he would be extradited to the US if he leaves the Ecuadorean embassy.

Assange set up WikiLeaks in 2006 but he was viewed by many right-wing Americans as a threat to national security after the organization published thousands of leaked U.S. diplomatic cables which gave embarrassing details about what Washington thought of various politicians and world leaders.

The cables were published in the New York Times and several other newspapers around the world.

The Right reacted similarly to CIA whistleblower Edward Snowden, especially after he sought political asylum in Russia.

But this year WikiLeaks has gone from being a darling of the Left to a thorn in the side of Clinton and the Democratic establishment.