A cluster of threat actor activity that Unit 42 observed attacking a Southeast Asian government target could provide insight into a rarely seen, stealthy APT group known as Gelsemium. The researchers found this activity as part of an investigation into compromised environments within a Southeast Asian government.
Unit 42 researchers identified the cluster as CL-STA-0046. This unique cluster had activity spanning over six months between 2022-2023. It featured a combination of rare tools and techniques that the threat actor leveraged to gain a clandestine foothold and collect intelligence from sensitive IIS servers belonging to a government entity in Southeast Asia.
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Source: Palo Alto Unit 42