The U.S. Cybersecurity and Infrastructure Security Agency (CISA) says many of the victims of the threat group that targeted Texas-based IT management firm SolarWinds were not directly linked to SolarWinds.
“While the supply chain compromise of SolarWinds first highlighted the significance of this cyber incident, our response has identified the use of multiple additional initial infection vectors. We have found that significant numbers of both the private-sector and government victims linked to this campaign had no direct connection to SolarWinds,” a CISA spokesperson told SecurityWeek.
“This is an ongoing response, and we are still working with our government and private sector partners to fully understand this campaign, and to develop and share timely information to mitigate the threat posed by this adversary,” the agency said.
CISA’s acting director, Brandon Wales, told The Wall Street Journal last week that roughly 30% of the victims identified by the agency did not have a direct connection to SolarWinds. Wales also said some victims were compromised before SolarWinds started delivering malicious product updates to customers.
CISA warned shortly after the SolarWinds breach came to light that the supply chain compromise was not the only initial attack vector leveraged by the threat group, which the U.S. government and others have linked to Russia.
Threat intelligence and incident response firm Volexity reported that the same group, which it tracks as Dark Halo, hacked a U.S. think tank several times, but only one of their attack waves exploited the compromised SolarWinds ..
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