When safety agency Malwarebytes announced final week that it had been focused by the identical attacker that compromised SolarWinds’ Orion software program, it famous that the assault didn’t use SolarWinds itself. In keeping with Malwarebytes, the attacker had used “one other intrusion vector” to achieve entry to a restricted subset of firm emails.
Brandon Wales, performing director of the US Cybersecurity and Infrastructure Company (CISA), mentioned practically a 3rd of the organizations attacked had no direct connection to SolarWinds.
[The attackers] gained entry to their targets in quite a lot of methods. This adversary has been artistic… it’s completely appropriate that this marketing campaign shouldn’t be considered the SolarWinds marketing campaign.
Lots of the assaults gained preliminary footholds by password spraying to compromise particular person e mail accounts at focused organizations. As soon as the attackers had that preliminary foothold, they used quite a lot of advanced privilege escalation and authentication assaults to take advantage of flaws in Microsoft’s cloud companies. One other of the Superior Persistent Menace (APT)’s targets, safety agency CrowdStrike, mentioned the attacker tried unsuccessfully to learn its e mail by leveraging a compromised account of a Microsoft reseller the agency had labored with.
In keeping with The Wall Street Journal, SolarWinds is now investigating the chance that these Microsoft flaws had been the APT’s first vector into its personal group. In December, Microsoft mentioned the APT in query had accessed its personal company community and considered inner supply code—however that it discovered “no indications that our methods had been used to assault others.” At the moment, Microsoft had recognized greater than 40 assaults on its clients, a quantity that has elevated since.
Microsoft Company VP of Safety, Compliance, and Id Vasu Jakkal informed ZDNet that the “SolarWinds” marketing campaign is not an remoted emergency a lot as the brand new regular, saying, “These assaults are going to proceed to get extra subtle. So we should always count on that. This isn’t the primary and never the final. This isn’t an outlier. That is going to be the norm.”