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cephalus

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.

How we source and review actor profiles
Motivation
ransomware
Last seen
2025-08-29
Sectors
professional-services, healthcare, technology, financial-services, retail-e-commerce, government-defense, manufacturing
Status
Dormant

Activity timeline

A dated ledger of actor-claimed victims, campaigns, indicators, identity mappings, relationships, and CVE links. Each date states what it measures. For extensive leak-site histories, victim entries are limited to the 100 most recent distinct listings.

Claimed
Victim claimOne-LUX listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimShropdoc listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimShelbourne Accountants listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimDelta Information Systems listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Last observed
Indicator2 indicators cataloged

Types: ip, onion.

Claimed
Victim claimColorado Health Network Inc listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimTexas Pregnancy Care Network listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimwilderlawfirm listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimCoCo Yachts listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimtxpregnancy.org - Fake Abortion Clinics Exposed listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimTown of Vienna, VA listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimLewis Baach Kaufmann Middlemiss PLLC listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimSherman, Silverstein, Kohl, Rose & Podolsky, P.A. listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimGuerrero Mears LLP listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimK Strategies Marketing and Public Relations listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimBAR Architects & Interiors listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimSystemExec Co., Ltd. listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimLee & Associates listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
Claimed
Victim claimLPL Financial listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed
First listed
Victim claimCareSTL Health listed by cephalus

Actor-claimed victim evidence. This listing is not independent confirmation of compromise.

Actor Claimed

Identity and attribution

Exact names and tracking identifiers resolve to this canonical profile. Rebrands, affiliations, and overlapping clusters remain separate confidence-rated relationships.

Name map

cephalusCanonical Name

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