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CISA, NSA, FBI, the US Department of Health and Human Services, the Republic of Korea National Intelligence Service, and the Republic of Korea Defense Security Agency are issuing this alert to highlight ongoing ransomware activity against Healthcare and Public Health Sector organizations and other critical infrastructure sector entities.\nAA23-040A Alert, Technical Details, and Mitigations\nCISA\u2019s North Korea Cyber Threat Overview and Advisories webpage.\nStairwell provided a YARA rule to identify Maui ransomware, and a Proof of Concept public RSA key extractor at the following link: https://www.stairwell.com/news/threat-research-report-maui-ransomware/\nSee Stopransomware.gov, a whole-of-government approach, for ransomware resources and alerts.\nNo-cost cyber hygiene services: Cyber Hygiene Services and Ransomware Readiness Assessment.\nSee CISA Insights Mitigations and Hardening Guidance for MSPs and Small- and Mid-sized Businesses for guidance on hardening MSP and customer infrastructure.\nU.S. DIB sector organizations may consider signing up for the NSA Cybersecurity Collaboration Center\u2019s DIB Cybersecurity Service Offerings, including Protective Domain Name System services, vulnerability scanning, and threat intelligence collaboration for eligible organizations. For more information on how to enroll in these services, email dib_defense@cyber.nsa.gov\xa0\nTo report incidents and anomalous activity or to request incident response resources or technical assistance related to these threats, contact CISA at report@cisa.gov, or call (888) 282-0870, or report incidents to your local FBI field office.\nLearn more about your ad choices. Visit megaphone.fm/adchoices