Chepalus APT: Sophisticated Ransomware Operations Leveraging DLL Side-Loading

The Chepalus APT group is a sophisticated cyber threat actor known primarily for conducting targeted ransomware campaigns with advanced evasion and persistence capabilities. While concrete public attribution remains limited, Chepalus exhibits many hallmarks of state-aligned groups motivated by a blend of financial gain and strategic disruption. In a recent campaign Cephalus’s ransomware deployment leverages a critical vulnerability in a legitimate EDR component through a technique known as DLL side-loading.