Winter Vivern APT group uses unknown set of espionage campaigns to strike government and private entities


Level 18
Thread author
Top Poster
May 4, 2019
SentinelLabs identified Winter Vivern APT (advanced persistent threat) activity, leveraging observations made by The Polish CBZC and Ukraine CERT. The hacker group employs various tactics, such as phishing websites, credential phishing, and deployment of malicious documents, tailored to the targeted organization’s specific needs. This results in the deployment of custom loaders and malicious documents, which enable unauthorized access to sensitive systems and information.

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