Chinese APT Bypasses Philippine Military Defenses with EggStreme Fileless Malware (2025)
In September 2025, a Chinese advanced persistent threat (APT) group breached a Philippines-based military company using a sophisticated multi-stage attack leveraging the novel fileless malware framework, EggStreme. According to Bitdefender, the attackers achieved persistence and stealth by injecting their malicious code directly into memory and utilizing DLL sideloading to execute payloads without writing files to disk. This allowed them to maintain an undetected presence, conduct espionage, and potentially exfiltrate sensitive military and government data. The breach underscores ongoing risks to national security organizations from highly resourced nation-state actors employing advanced techniques. This incident highlights the emergence of more evasive, memory-resident malware frameworks targeting defense and critical infrastructure. Fileless attack methods such as those used by EggStreme are increasingly common and harder to detect, urging organizations to adopt advanced threat detection, improved segmentation, and robust incident response capabilities.
Kill Chain