Winos 4.0 Malware Uses Weaponized PDFs Posing as Government Departments to Infect Windows Machines

Security researchers are tracking a high-severity malware campaign that uses weaponized PDF files to distribute the Winos 4.0 malware. The threat actors impersonate government departments to trick users into opening malicious documents that infect Microsoft Windows machines. The campaign, first observed in early 2025, has since expanded its operations from Taiwan to Japan and Malaysia, […]

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