onion URL (reachable through the Tor browser). Instead, the note, which appears after encryption, requires victims to directly interact with the threat actor via a. In observed incidents, Royal actors do not include ransom amounts and payment instructions as part of the initial ransom note.

Royal actors have made ransom demands ranging from approximately $1 million to $11 million USD in Bitcoin. After gaining access to victims’ networks, Royal actors disable antivirus software and exfiltrate large amounts of data before ultimately deploying the ransomware and encrypting the systems. FBI and CISA believe this variant, which uses its own custom-made file encryption program, evolved from earlier iterations that used “Zeon” as a loader. and international organizations with a Royal ransomware variant. Since approximately September 2022, cyber criminals have compromised U.S. The Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) are releasing this joint CSA to disseminate known Royal ransomware IOCs and TTPs identified through FBI threat response activities as recently as January 2023. Enable and enforce multifactor authentication.Train users to recognize and report phishing attempts.Prioritize remediating known exploited vulnerabilities.Visit to see all #StopRansomware advisories and to learn more about other ransomware threats and no-cost resources.Īctions to take today to mitigate cyber threats from ransomware:

These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware. Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.

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