He also appeared to suggest Bannon was chief among the leakers in the White House.
Ahead of the livestream, Scaramucci gave his first television interview since his short-lived tenure in the White House, speaking out against Bannon and saying the president "knows what he's going to do with" him. "Am I that guy?'" Ana Winner, a contributor at Foreign Policy who broke the story, told CNN's "The Lead with Jake Tapper".
"He has to moved away from that sort of Bannon-bart nonsense", Scaramucci added. "This is an umbrella organization or movement called the alt-right and the alt-right is a terrorist movement".
Separately, Scaramucci said he believed Trump's condemnation Saturday of hatred, bigotry and violence "on many sides" in reference to violent protests after white supremacists marched in Charlottesville, Virginia, should have been more pointed.
The White House later Sunday issued a statement saying of Trump's condemnation: "Of course that includes white supremacists, KKK, Neo-Nazi and all extremist groups".
Scaramucci was sacked after just 11 days on the job.
Scaramucci's frustration with Bannon was put on full display last month after New Yorker reporter Ryan Lizza published an article detailing an expletive-laced phone conversation he had with Scaramucci.
When discussing the influences that he thinks are impacting Trump, Scaramucci urged the president to take a more mainstream approach in order to sell his agenda.
While President Donald Trump's national security adviser Lt. Gen. H.R. McMaster and the National Security Council are trying to provide guidance about North Korea, they are also facing attacks from outside and from within the White House.
He said that one of his faults in taking the job was that "I was running too hard like a corporate CEO than a political operative". "I am a straight talking person".