Just days after offering for sale a database of Windows exploits allegedly purloined from an outfit thought to be affiliated with the National Security Agency (NSA), the infamous ShadowBrokers hacking crew has apparently decided to call it quits.
As a parting gift, they released an archive of nearly five-dozen Windows hacking tools for free Thursday in an apparent last ditch effort to convince potential buyers of the authenticity of their goods.
They also promised to come out of hiding and still release a collection of Linux and Windows exploits in their possession to anyone willing to pay the equivalent of slightly more than $8 million (10,000 bitcoins at current rates) for it.
In a parting note on the group’s website, the Shadow Brokers claimed the decision to go dark had to do entirely with money, or rather the fact they hadn’t made as much of it as expected from their hacking wares.
The language in the note appeared almost deliberately contrived to make it seem as if members of the group are non-native English speakers. “Despite theories, it always being about bitcoins for TheShadowBrokers,” the note claimed. “Free dumps and bullshit political talk was being for marketing attention.”
The farewell note expressed the group’s disappointment with their lack of success in finding buyers for attack tools they had tried to auction off last year and admonished people for not believing in the Shadow Brokers.
“TheShadowBrokers is going dark, making exit,” because continuing poses too much risk. “TheShadowBrokers is deleting accounts and moving on so don’t be trying communications.”
The Shadow Brokers burst into the limelight last August when it leaked information on multiple attacks tools and exploits that it claimed were stolen from The Equation Group, an outfit, which many believe is affiliated with the NSA. Some believe the group obtained the data from a rogue insider.
In releasing the data, the Shadow Brokers claimed they had an even bigger and better collection of similar attack tools that the NSA had allegedly used over the years for breaking into and intercepting data on adversary systems. They put the tools on auction for tens of millions of dollars last summer and then canceled the auction a few months later after failing to get any interest.
Since then the Shadow Brokers, who many believe have Russian connections, have attempted to sell their goods piecemeal in the cyber underground. In November the group released data pertaining to a tool allegedly used by the Equation Group for breaking into Sun Solaris systems in addition to list of IP addresses and domains associated with servers used to stage and distribute exploits. Earlier this week, they leaked more information, this time on a slew of exploits and toolkits for breaking into Windows system, which they said they would sell to anyone willing to pay 750 bitcoins.
The data releases, like the first one in August appeared designed to convince people that the data the Shadow Brokers has in its possession is authentic.
Andra Zaharia security evangelist with Heimdal Security, which Thursday updated an earlier alert on the Windows exploit release with news of the Shadow Brokers’ quitting, offers two potential reasons for the move.
“One theory is that The Shadow Brokers were a cover up for another operation, and another could be that, in spite of past poor results in sales, [the latest] offer could have helped them reach their goal in terms of bitcoin revenue,” she says.
For the moment the company is unable to confirm what the true motive might be, she adds. The 58 Windows hacking tools released for free by the Shadow Brokers as a parting gift are all detectable by Kaspersky anti virus, she said.
“We have not yet tested all the tools, but we would be surprised if more tools didn't detect the tools as malicious,” Zaharia says.
For the moment at least, Hemidal has not been able to confirm if the hacking tools that were released publically this week was the same as the ones put up on sale by the group, she adds.