Chinese-speaking hackers used a compromised SonicWall VPN to access VMware ESXi systems, exploiting three zero-day vulnerabilities for potential ransomware attacks. Cybersecurity firm Huntress intervened before the attack could escalate, revealing a sophisticated toolkit that enables virtual machine escapes and backdoor access.

Scattered Spider hackers have been targeting VMware ESXi hypervisors in U.S. companies across various sectors through sophisticated social engineering techniques, rather than exploiting software vulnerabilities. Their attack methodology enables them to gain significant control over virtualized environments, leading to data exfiltration and ransomware deployment. Google Threat Intelligence Group has outlined protective measures organizations can take to defend against these attacks.