Russian-linked hackers blamed for the massive cyberattack on the US last year have been targeting hundreds of companies and organizations in its latest wave of attacks on US-based computer networks — as the White House dismisses the incident as “unsophisticated, run-of-the mill operations.”
In a blog post Sunday, Microsoft said Nobelium – the Russian-based agency behind last years’ widespread SolarWinds attack – has been targeting cloud service providers and technology service organizations in a bid to obtain data.
The attacks have targeted organizations in the US and Europe since May, Microsoft said.
One of Microsoft’s top security officers Tom Burt told the New York Times, which first reported the breach, that the latest attack was “very large and ongoing.”
“Nobelium has been attempting to replicate the approach it has used in past attacks by targeting organizations integral to the global IT supply chain. This time, it is attacking a different part of the supply chain: resellers and other technology service providers that customize, deploy and manage cloud services and other technologies on behalf of their customers,” Microsoft said in its blog post.
“We believe Nobelium ultimately hopes to piggyback on any direct access that resellers may have to their customers’ IT systems and more easily impersonate an organization’s trusted technology partner to gain access to their downstream customers.”
Microsoft said it had notified 609 customers between July 1 and Oct. 19 they had been attacked.
The company insisted only a small percent of the latest attempts were successful.
“This recent activity is another indicator that Russia is trying to gain long-term, systematic access to a variety of points in the technology supply chain and establish a mechanism for surveilling – now or in the future – targets of interest to the Russian government,” Microsoft said.
“The attacks we’ve observed in the recent campaign against resellers and service providers have not attempted to exploit any flaw or vulnerability in software but rather used well-known techniques, like password spray and phishing, to steal legitimate credentials and gain privileged access.”
Microsoft said it had learned enough about these new attacks to provide information that “can be used to defend against this new approach.”
A Biden administration official told the Times the latest attacks were “unsophisticated, run-of-the mill operations that could have been prevented if the cloud service providers had implemented baseline cybersecurity practices.”
“We can do a lot of things… but the responsibility to implement simple cybersecurity practices to lock their — and by extension, our — digital doors rests with the private sector,” the official said.
The US government blamed Russia for the major breach of government agencies last year known as the SolarWinds hack.
President Biden hit Russia with sanctions back in April in the wake of the attack.