New BPFDoor Controller Facilitates Covert Lateral Movement in Linux Server Attacks
Apr 16, 2025
Cyber Espionage / Network Security
Cybersecurity researchers have discovered a new component linked to the BPFDoor backdoor, employed in cyber attacks targeting the telecommunications, finance, and retail sectors across South Korea, Hong Kong, Myanmar, Malaysia, and Egypt in 2024. “The controller can establish a reverse shell,” explained Trend Micro researcher Fernando Mercês in a technical report released earlier this week. “This capability permits lateral movement, enabling attackers to penetrate deeper into compromised networks and gain control over more systems or access sensitive data.” The campaign has been tentatively attributed to a threat group known as Earth Bluecrow, also referred to as DecisiveArchitect, Red Dev 18, and Red Menshen. The medium confidence level stems from the BPFDoor malware source code being leaked in 2022, suggesting it could have been adopted by other hacking entities. BPFDoor is a Linux backdoor that first emerged in…