cephalus
Intelligence Profile
Cephalus is a ransomware group active from mid-2025 that leverages stolen RDP credentials to deploy a Go-based ransomware payload via DLL sideloading, targeting law firms, healthcare, financial services, and IT firms across the US and Japan with 19 known victims.
Threat Analysis
cephalus is a ransomware operation that deploys encryption-based extortion against organizations globally. This group maintains a data leak site (DLS) to pressure victims into paying ransom demands.
Financially motivated threat actors like cephalus prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.
Ransomware Victims (19)
CTIWATCH tracks 19 organizations claimed as victims by cephalus on its data leak site, with attack dates, sectors and countries.
View full victims list →