GOLD DUPONT

Known Names 2 entries

Description

(CrowdStrike) In 2020, CrowdStrike Intelligence observed both SPRITE SPIDER (the operators of Defray777) and {{Carbanak, Anunak}} (the operators of DarkSide) deploy Linux versions of their respective ransomware families on ESXi hosts during BGH operations. While ransomware for Linux has existed for many years, BGH actors have historically not targeted Linux, much less ESXi specifically. ESXi is a type of hypervisor that runs on dedicated hardware and manages multiple virtual machines (VMs). With more organizations migrating to virtualization solutions to consolidate legacy IT systems, this is a natural target for ransomware operators looking to increase the impact against a victim. All identified incidents were enabled by the acquisition of valid credentials. In four separate Defray777 incidents, SPRITE SPIDER used administrator credentials to log in through the vCenter web interface. In one instance, SPRITE SPIDER likely used the PyXie remote access trojan (RAT) LaZagne module to harvest vCenter administrator credentials stored in a web browser. By targeting these hosts, ransomware operators are able to quickly encrypt multiple systems with relatively few actual ransomware deployments. Encrypting one ESXi server inflicts the same amount of damage as individually deploying ransomware on each VM hosted on a given server. Consequently, targeting ESXi hosts can also improve the speed of BGH operations. Additionally, due to their lack of conventional operating systems, ESXi hosts lack endpoint protection software that could prevent or detect ransomware attacks.

Tools Used 9

Operations 20

Reports & References 2