SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 64

Security Affairs Malware newsletter Round 64 is a roundup compiled by Pierluigi Paganini, dated 28 September 2025, described as a collection of the best articles and research on malware in the international landscape. It presents a selection of malware-focused links, including items such as Brewing Trouble — Dissecting a macOS Malware Campaign and Large-Scale Attack Targeting Macs via GitHub Pages Impersonating Companies to Attempt to Deliver Stealer Malware.

The list also features pieces on prompts as code and embedded keys in the hunt for LLM-enabled malware, the Chameleon’s Trap exposing top Office exploits on unpatched systems, and YiBackdoor with links to IcedID and Latrodectus, among others. Additional entries cover two malicious Rust crates, DLL search order hijacking abuses, and investigations into MuddyWater’s infrastructure and malware ecosystem.

The newsletter advertises further analyses and reports, including Malware Analysis Report RayInitiator & LINE VIPER, and notes surrounding updates to XCSSET and related campaigns.