Squidoor: Multi-Vector Malware Exploiting Outlook API, DNS & ICMP Tunneling for C2

A newly identified malware, dubbed “Squidoor,” has emerged as a sophisticated threat targeting government, defense, telecommunications, education, and aviation sectors in Southeast Asia and South America. Attributed to a suspected Chinese threat actor under the activity cluster CL-STA-0049, Squidoor employs advanced techniques to infiltrate networks, maintain persistence, and exfiltrate sensitive data. This modular backdoor is […]

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