The software giant’s Threat Intelligence Centre (MSTIC) said in a blog post that the Nobelium group was attempting to gain access to customers of cloud computing services and other IT service providers to infiltrate “the governments, think tanks, and other companies they serve”.
Describing the cyberattack as “nation-state activity”, MSTIC said it “shares the hallmarks” of the assault on SolarWinds, a Texas-based software company targeted as its 300,000-strong customer base gave the hackers access to a huge number of companies.
“It appears the widespread SolarWinds Russia-linked hackers from last year’s attack are again on the hunt for sensitive data and stepping up supply chain attacks across the board,” Wedbush analyst Dan Ives said in a note to investors.
Washington imposed sanctions in April and expelled Russian diplomats in retaliation for Moscow’s alleged involvement in the SolarWinds attack, as well as election interference and other hostile activity.
The latest attack has been underway since at least May, MSTIC said, with Nobelium deploying a “diverse and dynamic toolkit that includes sophisticated malware”.
“Nobelium has been attempting to replicate the approach it has used in past attacks by targeting organizations integral to the global IT supply chain,” Microsoft vice president Tom Burt wrote in a blog post published late Sunday.
This time, Burt noted, Nobelium is targeting “resellers” — companies that customise Microsoft’s cloud computing services for use by businesses and other organisations.
“Since May, we have notified more than 140 resellers and technology service providers that have been targeted by Nobelium,” he wrote.
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