Tag: UNC4841

Diving Deep into UNC4841 Operations Following Barracuda ESG Zero-Day Remediation (CVE-2023-2868)

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On June 15, 2023, Mandiant released a blog post detailing an 8-month-long global espionage campaign conducted by a Chinese-nexus threat group tracked as UNC4841. Over the course of this follow up blog post, Mandiant researchers will detail how UNC4841 has Read More …

Barracuda ESG Zero-Day Vulnerability (CVE-2023-2868) Exploited Globally by Aggressive and Skilled Actor, Suspected Links to China

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Starting as early as October 10, 2022, UNC4841 sent emails to victim organizations that contained malicious file attachments designed to exploit CVE-2023-2868 to gain initial access to vulnerable Barracuda ESG appliances. Over the course of their campaign, UNC4841 has primarily Read More …