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Active · #78 by victimsRansomware group

MedUSlocker

As of Oct 19, 2026, MedUSlocker has listed 88 confirmed victims on its leak site since Jul 17, 2023, 0.3% of all victims tracked by Brandefense. Its most targeted country is United States (17.0% of its victims) and its most targeted sector is Manufacturing.

Medusa is a DDoS bot written in.NET 2.0. In its current incarnation its C&C protocol is based on HTTP, while its predecessor made use of IRC.

Also known asmedusalocker
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Confirmed Victims
88
Rank By Victims
#78
Last Leak-Site Post
Oct 5, 2026
Top Country
United States
Top Sector
Manufacturing

Victims Posted Per Month.

MedUSlocker confirmed victims per month
MonthConfirmed victims
November 20252
December 20250
January 20260
February 20260
March 20260
April 20260
May 202614
June 20260
July 202611
August 202610
September 202613
October 2026 (month in progress)2
Updated continuously · figures as of Oct 19, 2026

Latest MedUSlocker Victims.

Search all 88 →
Latest confirmed leak-site victims claimed by MedUSlocker
VictimCountryIndustryData claimedPosted
Millensys
millensys.com
EGEgyptHealthcareNot stated
Rueegseggerag
rueegseggerag.ch
CHSwitzerlandConstructionNot stated
PKSF, Palli Karma-Sahayak FoundationBDBangladeshFinancial ServicesNot stated
Juntadeandalucia
juntadeandalucia.es
ESSpainGovernment and Public SectorNot stated
Premiumfruits
premiumfruits.eu
DEGermanyAgricultureNot stated
ATCO Ltd
mail.gmail.com
USUnited StatesEnergy and UtilitiesNot stated

How They Operate.

MedUSlocker's threat actor profile lists 1 malware and tools, with its targets and related actors.

TTPs, CVEs and malware →

Who MedUSlocker Targets.

Sectors

  1. Manufacturing89.1%
  2. Education and Research78.0%
  3. Consulting66.8%
  4. Technology66.8%
  5. Government and Public Sector55.7%

Countries

  1. USUnited States1517.0%
  2. DEGermany55.7%
  3. FRFrance44.5%
  4. AEUnited Arab Emirates33.4%
  5. AUAustralia33.4%
Shares are of this group's confirmed victims.

History.


  1. First confirmed victim listed on its leak site

  2. First seen in Brandefense data

  3. Busiest month on record: 22 confirmed victims

  4. Most recent leak-site post

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.