CISA and FBI are releasing this joint advisory to disseminate known Royal ransomware IOCs and TTPs identified through recent FBI threat response activities.
AA23-061A Alert, Technical Details, and Mitigations
AA23-061A STIX XML
Royal Rumble: Analysis of Royal Ransomware (cybereason.com)
DEV-0569 finds new ways to deliver Royal ransomware, various payloads - Microsoft Security Blog
2023-01: ACSC Ransomware Profile - Royal | Cyber.gov.au
See Stopransomware.gov, a whole-of-government approach, for ransomware resources and alerts.
No-cost cyber hygiene services: Cyber Hygiene Services and Ransomware Readiness Assessment.
See CISA Insights Mitigations and Hardening Guidance for MSPs and Small- and Mid-sized Businesses for guidance on hardening MSP and customer infrastructure.
U.S. DIB sector organizations may consider signing up for the NSA Cybersecurity Collaboration Center’s 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 
To 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.