The hack, which has been dubbed the “hacker dog” after a Reddit user, is believed to have been made by someone using the handle of a Russian-speaking internet user.
The Russian-language blog Kommersant has published a story claiming to have tracked down the Russian-born man behind the botnet, who has not been named.
“Hackers and hackers always have a way of doing things,” the author wrote.
“They can’t be stopped.
They can’t stop you.”
It is not known how the bot is made.
It has been alleged that the bot, named “hacking the dog” in the post, was created by the Russian government and is used to hack the email of the US presidential candidate Donald Trump.
“It’s the only thing I know that’s been done to me and I hope it’s not done to other people, too,” Trump tweeted in a video he released on Friday.
It was not clear whether the bot was a joke or the work of a professional cyber-criminal.
Russian President Vladimir Putin said the cyberattack was the biggest he had seen and said he was monitoring the situation closely.
“I am watching closely the situation with great interest, and I have instructed my cyber-security services to take the necessary steps,” he said.
Russian authorities say they have arrested and charged five people in connection with the attack, including a Ukrainian national who used the username “LionKing” and a man who claimed to be a hacker.
The group, dubbed “Lionsgate” and based in the Russian city of St Petersburg, has been identified by a number of social media users as members of a far-right Russian-based group called “Beltandrussian” (Досведнийской Соватерная Респользовожности), which is believed by the US to be associated with the Russian intelligence services.
“We are aware that the group ‘LionsGate’ is a criminal organisation,” a statement by the Federal Security Service (FSB) said in a statement.
“As soon as we were informed, we launched an investigation.
The investigation is currently ongoing.”
A number of Russian online forums, including Twitter, Facebook and YouTube, have since suspended accounts associated with this group.
The group’s Facebook page was also suspended on Friday, while Twitter did not immediately respond to requests for comment.
There has also been speculation that the “Hacker Dog” may have been used to instigate a cyberattack against the UK Prime Minister, Boris Johnson.
The British politician has been embroiled in a long-running political row with the Kremlin over Russia’s involvement in the conflict in Ukraine.
Johnson was also the target of a hack in March that resulted in the personal information of the PM being leaked online.
The US has also said it is monitoring the “hack” and the potential use of the bot by Russia, but the Kremlin has denied any involvement.
The hack was first discovered by a Reddit thread, but has now been linked to the blog of the Russian state-owned news agency TASS.
“It is known that this person is a Russian, but he is not linked to anything,” a Russian government official told Kommorsant.
More: The post on Reddit by Kommensant claims the bot created by Russia is a “bot” made by a Ukrainian, identified as “Даливс Сочи Новосим”.
The author then adds that the man behind it is also a Russian citizen, who “is not affiliated to the Russian Federation, but is rather working for the Russian authorities”.
“This is an important case,” the blog post reads.
“The information gained from this bot is of interest to us and to our foreign partners.
It is a potential tool for the criminal elements.”