AA22-228A: Threat Actors Exploiting Multiple CVEs Against Zimbra Collaboration Suite
Original release date: August 16, 2022 Summary Actions for ZCS administrators to take today to mitigate malicious cyber activity: • Patch all systems and prioritize patching known exploited vulnerabilities. • Deploy detection signatures and hunt for Indicators of Compromise (IOCs). • If ZCS was compromised, remediate malicious activity. The Cybersecurity and Infrastructure Security Agency (CISA) […]
AA22-223A: #StopRansomware: Zeppelin Ransomware
Original release date: August 11, 2022 Summary Actions to take today to mitigate cyber threats from ransomware: • Prioritize remediating known exploited vulnerabilities. • Train users to recognize and report phishing attempts. • Enable and enforce multifactor authentication. Note: this joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for […]
AA22-216A: 2021 Top Malware Strains
Original release date: August 4, 2022 Summary Immediate Actions You Can Take Now to Protect Against Malware: • Patch all systems and prioritize patching known exploited vulnerabilities. • Enforce multifactor authentication (MFA). • Secure Remote Desktop Protocol (RDP) and other risky services. • Make offline backups of your data. • Provide end-user awareness and training […]
AA22-187A: North Korean State-Sponsored Cyber Actors Use Maui Ransomware to Target the Healthcare and Public Health Sector
Original release date: July 6, 2022 Summary The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and the Department of the Treasury (Treasury) are releasing this joint Cybersecurity Advisory (CSA) to provide information on Maui ransomware, which has been used by North Korean state-sponsored cyber actors since at least May 2021 to […]
AA22-181A: #StopRansomware: MedusaLocker
Original release date: June 30, 2022 Summary Actions to take today to mitigate cyber threats from ransomware: • Prioritize remediating known exploited vulnerabilities. • Train users to recognize and report phishing attempts. • Enable and enforce multifactor authentication. Note: this joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for […]
AA22-152A: Karakurt Data Extortion Group
Original release date: June 1, 2022 | Last revised: June 2, 2022 Summary Actions to take today to mitigate cyber threats from ransomware: • Prioritize patching known exploited vulnerabilities. • Train users to recognize and report phishing attempts. • Enforce multifactor authentication. The Federal Bureau of Investigation (FBI), the Cybersecurity and Infrastructure Security Agency (CISA), […]