DataBreaches.Net

Menu
  • About
  • Breach Notification Laws
  • Privacy Policy
  • Transparency Report
Menu

#StopRansomware: Medusa Ransomware

Posted on March 13, 2025March 12, 2025 by Dissent

Release Date: March 12, 2025
Alert Code: AA25-071A

Summary

Note: This joint Cybersecurity Advisory is part of an ongoing #StopRansomware effort to publish advisories for network defenders detailing various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware. Visit stopransomware.gov to see all #StopRansomware advisories and to learn more about other ransomware threats and no-cost resources.

The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and the Multi-State Information Sharing and Analysis Center (MS-ISAC) are releasing this joint advisory to disseminate known Medusa ransomware TTPs and IOCs, identified through FBI investigations as recently as February 2025.

Medusa is a ransomware-as-a-service (RaaS) variant first identified in June 2021. As of February 2025, Medusa developers and affiliates have impacted over 300 victims from a variety of critical infrastructure sectors with affected industries including medical, education, legal, insurance, technology, and manufacturing. The Medusa ransomware variant is unrelated to the MedusaLocker variant and the Medusa mobile malware variant
per the FBI’s investigation.

FBI, CISA, and MS-ISAC encourage organizations to implement the recommendations in the Mitigations section of this advisory to reduce the likelihood and impact of Medusa ransomware incidents.

Download the PDF version of this report:

AA25-071A #StopRansomware: Medusa Ransomware(PDF, 672.45 KB )

For a downloadable list of IOCs, see:

AA25-071A STIX XML(XML, 34.30 KB )
AA25-071A STIX JSON(JSON, 42.28 KB )

Read more at CISA.

Category: Commentaries and AnalysesMalware

Post navigation

← Takeaways from our investigation on AI-powered school surveillance
South Korea: Modetour Network fined 740 million won for hacking incident; Meta loses appeal of 6.7 billion won fine →

Now more than ever

"Stand with Ukraine:" above raised hands. The illustration is in blue and yellow, the colors of Ukraine's flag.

Search

Browse by Categories

Recent Posts

  • Nova Scotia Power hit by cyberattack, critical infrastructure targeted, no outages reported
  • Georgia hospital defeats data-tracking lawsuit
  • 60K BTC Wallets Tied to LockBit Ransomware Gang Leaked
  • UK: Legal Aid Agency hit by cyber security incident
  • Public notice for individuals affected by an information security breach in the Social Services, Health Care and Rescue Services Division of Helsinki
  • PowerSchool paid a hacker’s extortion demand, but now school district clients are being extorted anyway (3)
  • Defending Against UNC3944: Cybercrime Hardening Guidance from the Frontlines
  • Call for Public Input: Essential Cybersecurity Protections for K-12 Schools (2025-26 SY)
  • Cyberattack puts healthcare on hold for hundreds in St. Louis metro
  • Europol: DDoS-for-hire empire brought down: Poland arrests 4 administrators, US seizes 9 domains

No, You Can’t Buy a Post or an Interview

This site does not accept sponsored posts or link-back arrangements. Inquiries about either are ignored.

And despite what some trolls may try to claim: DataBreaches has never accepted even one dime to interview or report on anyone. Nor will DataBreaches ever pay anyone for data or to interview them.

Want to Get Our RSS Feed?

Grab it here:

https://databreaches.net/feed/

RSS Recent Posts on PogoWasRight.org

  • Apple Siri Eavesdropping Payout Deadline Confirmed—How To Make A Claim
  • Privacy matters to Canadians – Privacy Commissioner of Canada marks Privacy Awareness Week with release of latest survey results
  • Missouri Clinic Must Give State AG Minor Trans Care Information
  • Georgia hospital defeats data-tracking lawsuit
  • No Postal Service Data Sharing to Deport Immigrants
  • DOGE aims to pool federal data, putting personal information at risk
  • Privacy concerns swirl around HHS plan to build Medicare, Medicaid database on autism

Have a News Tip?

Email: Tips[at]DataBreaches.net

Signal: +1 516-776-7756

Contact Me

Email: info[at]databreaches.net

Mastodon: Infosec.Exchange/@PogoWasRight

Signal: +1 516-776-7756

DMCA Concern: dmca[at]databreaches.net
© 2009 – 2025 DataBreaches.net and DataBreaches LLC. All rights reserved.