The hackers behind the latest large-scale provide chain assaults on VoIP supplier 3CX are actually particularly focusing on cryptocurrency corporations in an try and empty their wallets, researchers have warned.

By distributing a trojanized model of the VoIP resolution, the attackers managed to infiltrate dozens of corporations and place numerous stage-two malware on their endpoints. 

Now, cybersecurity researchers from Kaspersky have discovered the attackers additionally focused, with excessive precision, not more than a dozen corporations, with a novel backdoor known as Gopuram.

Modular backdoor

BleepingComputer describes Gopuram as a modular backdoor able to timestomping to evade detection, payload injection into already operating processes, loading unsigned Home windows drivers utilizing the open-source Kernel Driver Utility, and extra.

In actual fact, it was the usage of Gopuram that made Kaspersky establish the risk actor behind the complete operation as North Korea’s Lazarus Group.

“The invention of the brand new Gopuram infections allowed us to attribute the 3CX marketing campaign to the Lazarus risk actor with medium to excessive confidence. We imagine that Gopuram is the principle implant and the ultimate payload within the assault chain,” Kaspersky researchers stated.

Lazarus focused lower than ten machines with this backdoor, all of that are crypto corporations, it was stated. The motivation is most definitely monetary, the researchers counsel.

“As for the victims in our telemetry, installations of the contaminated 3CX software program are positioned all around the world, with the best an infection figures noticed in Brazil, Germany, Italy and France,” the report reads. “Because the Gopuram backdoor has been deployed to lower than ten contaminated machines, it signifies that attackers used Gopuram with surgical precision. We moreover noticed that the attackers have a selected curiosity in cryptocurrency corporations.”

3CX has greater than 12 million every day customers, with merchandise utilized by greater than 600,000 corporations worldwide Its buyer listing contains high-profile corporations and organizations like American Specific, Coca-Cola, McDonald’s, Air France, IKEA, the UK’s Nationwide Well being Service, and a number of automakers, together with BMW, Honda, Toyota, and Mercedes-Benz.

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By way of: BleepingComputer (opens in new tab)