“I don’t know anybody from so-called troll farms,” he said.

A video interview posted to YouTube in June provided a glimpse of Mr. Malkevich in USAReally’s office in Moscow, which featured a large portrait of President Trump and two flags on the wall — one American, one Confederate. Behind Mr. Malkevich was a Russian-language map of the United States, in which states were labeled with topics such as “crime,” “poverty,” and “Second Amendment (mass-shooting).”

Mr. Malkevich characterized the map as “normal,” and said it helped the site’s editors focus their work on different states.

Spokeswomen from the Justice Department and F.B.I. declined to comment on USAReally.

Mr. Malkevich said he aimed to turn USAReally into a kind of digital-first version of RT or Sputnik — both Russian media organizations that broadcast pro-Kremlin views inside the United States — and a counterweight to organizations funded by the United States, like Radio Free Europe, that broadcast in Russia and other countries.

A 2017 American intelligence report concluded that both RT and Sputnik were part of “Russia’s state-run propaganda machine.” But they have been allowed to remain on Facebook and Twitter, because government-funded media is generally allowed on those platforms as long as it is created by authentic users and doesn’t violate the sites’ content guidelines.

USAReally, by contrast, was quickly banned by both Facebook and Twitter, although it recently opened a second Facebook page. A Twitter spokesman said that USAReally’s account was suspended for violating the site’s rules against spam. A Facebook spokesman said the company had enough evidence that the first page was involved in coordinated inauthentic activity to take action against it. He said the group’s second page was being investigated, and that the company had been aware of the account before being contacted by The New York Times.

Despite Mr. Malkevich’s claims, there are hints that USAReally may be drawing from the Internet Research Agency’s playbook, in addition to adopting the more open tactics of RT and Sputnik.