SolarWinds hackers breach Microsoft support agent to target customers

Nobelium engaged in password spray and brute-force attacks after implanting malware on a device belonging to a Microsoft employee

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28 June 2021 | 0

Microsoft has confirmed that some of its customers have been targeted by the Russian state-backed hacking group responsible for last year’s SolarWinds cyber attack after successfully compromising an employees’ computer.

Known as Nobelium, the group was found to have engaged in “password spray and brute-force attacks” on the tech giant’s customers.

The hackers implanted “information-stealing malware” on a device belonging to a Microsoft customer support agent, through which they obtained “basic account information for a small number of [Microsoft’s] customers”, according to the firm.

 

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They then “used this information in some cases to launch highly-targeted attacks as part of their broader campaign”.

“We responded quickly, removed the access and secured the device,” said Microsoft, adding that while the attacks were “mostly unsuccessful”, hackers managed to compromise three of its customers.

“This recent activity was mostly unsuccessful, and the majority of targets were not successfully compromised – we are aware of three compromised entities to date,” the Microsoft Security Response Center team announced in a blog post. “All customers that were compromised or targeted are being contacted through our nation-state notification process.

Overall, the hackers targeted organisations from 36 countries, the tech giant stated, adding that it recommends that customers enable multi-factor authentication in order “to protect their environments from this and similar attacks”.

The news comes weeks after Nobelium launched a wave of attacks on more than 150 government agencies, think tanks, consultants, and NGOs from 24 countries, targeting an estimated 3,000 e-mail accounts.

Microsoft’s corporate VP of customer security & trust, Tom Burt, said at the time said that Nobelium’s main objective is to “gain access to trusted technology providers and infect their customers”. The hacking group’s activities also tend to coincide with the “issues of concern to the country from which they are operating”, according to the cyber security expert.

“This is yet another example of how cyber attacks have become the tool of choice for a growing number of nation-states to accomplish a wide variety of political objectives, with the focus of these attacks by Nobelium on human rights and humanitarian organisations,” Burt added.

© Dennis Publishing


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