Bumblebee Bites Back with New Infection Chain

Bumblebee is a sophisticated malware loader first discovered in March 2022, primarily used by ransomware groups to deliver malicious payloads. Written in C++, it employs advanced evasion techniques, such as leveraging Windows shortcut (.LNK) files and PowerShell commands for stealth and persistence. Despite efforts to disrupt its operations during Europol’s May 2024 Operation Endgame, Bumblebee has resurfaced with updated tactics, continuing to evade detection. Its infection chain focuses on minimizing process creation to avoid triggering security alerts.