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Cisco Talos discovered CLOSEDQUORUM, a Windows malware that queries Google Gemini, DeepSeek, Qwen, and Mistral to autonomously choose post-compromise actions like credential theft and crypto wallet extraction. It is the first publicly documented Windows implant to use LLMs for command-and-control. No in-the-wild deployment has been observed, but the developer is linked to 2025 carding forum posts.
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