Today, CISA, the Federal Bureau of Investigation (FBI), the Multi-State Information Sharing and Analysis Center (MS-ISAC), and international partners released Understanding Ransomware Threat Actors: LockBit, a joint Cybersecurity Advisory (CSA) to help organizations understand and defend against threat actors using LockBit, the most globally used and prolific Ransomware-as-a-Service (RaaS) in 2022 and 2023. This guide is a comprehensive resource detailing the observed common vulnerabilities and exposures (CVEs) exploited, as well as the tools, and tactics, techniques, and procedures (TTPs) used by LockBit affiliates. Additionally, it includes recommended mitigations to help reduce the likelihood and impact of future ransomware incidents.

In 2022, LockBit was the most deployed ransomware variant across the world and continues to be prolific in 2023. The LockBit Ransomware-as-a-Service (RaaS) attracts affiliates to use LockBit for conducting ransomware attacks, resulting in a large web of unconnected threat actors conducting wildly varying attacks. Affiliates have attacked organizations of various sizes across an array of critical infrastructure sectors including financial services, food and agriculture, education, energy, government and emergency services, healthcare, manufacturing, and transportation. LockBit has been successful through its innovation and continual development of the group’s administrative panel (i.e., a simplified, point-and-click interface making ransomware deployment accessible to those with lower degrees of technical skill), affiliate supporting functions, and constant revision of TTPs.
 
CISA and the authoring agencies of this joint CSA encourage the implementation of recommendations provided to proactively improve their organization's defenses against this global ransomware operation, and to reduce the likelihood and impact of future ransomware incidents.

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