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The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), the Multi-State Information Sharing and Analysis Center (MS-ISAC), and the Canadian Centre for Cyber Security (CCCS) are releasing this joint Cybersecurity Advisory (CSA) in response to cyber threat actors leveraging newly identified Truebot malware variants against organizations in the United States and Canada. government resources and services that can help bolster cyber hygiene, cybersecurity posture and reduce risk to ransomware, and contains an updated Joint #StopRansomware Guide. Organizations are also encouraged to visit -which provides a range of free U.S.

To report incidents and anomalous activity, please contact one of the following organizations: and Canada.ĬISA, FBI, MS-ISAC, and the CCCS encourage all organizations to review this joint advisory and implement the recommended mitigations contained therein-including applying patches to CVE-2022-31199, to reduce the likelihood and impact of Truebot activity, as well as other ransomware related incidents. As recently as May 2023, cyber threat actors used this common vulnerability and exposure to deliver new Truebot malware variants and to collect and exfiltrate information against organizations in the U.S. Based on confirmation from open-source reporting and analytical findings of Truebot variants, the four organizations assess cyber threat actors leveraged the malware through phishing campaigns containing malicious redirect hyperlinks.Īdditionally, newer versions of Truebot malware allow malicious actors to gain initial access by exploiting a known vulnerability with Netwrix Auditor application ( CVE-2022-31199). and Canada Based Networks, to help organizations detect and protect against newly identified Truebot malware variants. Today, the Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigations (FBI), the Multi-State Information Sharing and Analysis Center (MS-ISAC), and the Canadian Centre for Cyber Security (CCCS) released a joint Cybersecurity Advisory (CSA), Increased Truebot Activity Infects U.S.