The Federal Bureau of Investigation (FBI), the Cybersecurity and Infrastructure Security Agency (CISA), the Department of the Treasury (Treasury), and the Financial Crimes Enforcement Network (FinCEN) are releasing this joint Cybersecurity Advisory to provide information about the Karakurt data extortion group, also known as the Karakurt Team and Karakurt Lair. Karakurt actors have employed a variety of TTPs, creating significant challenges for defense and mitigation. Karakurt victims have not reported encryption of compromised machines or files; rather, Karakurt actors claim to steal data and threaten to auction it or release it to the public unless they receive payment.
AA22-152A Alert, Technical Details, and Mitigations
CISA-Multi-State Information Sharing and Analysis Center (MS-ISAC) Joint Ransomware Guide
Data Integrity: Detecting and Responding to Ransomware and Other Destructive Events. Stopransomware.gov 
CISA's Ransomware Readiness Assessment
CISA's cyber hygiene services
FinCEN Advisory to Financial Institutions on Cyber-Events and Cyber-Enabled Crime
FinCEN Advisory on Ransomware and the Use of the Financial System to Facilitate Ransom Payments
All organizations should report incidents and anomalous activity to CISA’s 24/7 Operations Center at central@cisa.dhs.gov or (888) 282-0870 and to the FBI via your local FBI field office or the FBI’s 24/7 CyWatch at (855) 292-3937 or CyWatch@fbi.gov.