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New SysUpdate Variant Targets Linux Systems with Encrypted C2 Traffic

VPN Central [Unofficial] February 23, 2026
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A new variant of SysUpdate malware has been found attacking Linux systems. Security researchers at LevelBlue discovered it during a real-world incident response. They also built a decryption tool to reveal its hidden command-and-control communications.​ This threat uses strong encryption to hide its activities from defenders. The malware runs as a disguised system service on […] The post New SysUpdate Variant Targets Linux Systems with Encrypted C2 Traffic appeared first on VPN Central.

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