Massive Botnet Targets ASUS Routers by Injecting Malicious SSH Keys

GreyNoise Research has publicly disclosed a sophisticated cyberattack campaign that has compromised over 9,000 ASUS routers worldwide. First detected by GreyNoise’s proprietary AI-powered analysis tool, Sift, on March 18, 2025, the campaign leverages a combination of brute-force attacks, authentication bypasses, and a known command injection vulnerability (CVE-2023-39780) to gain and maintain unauthorized access to internet-exposed […]

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