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Your Daily Cybersecurity Update for Monday, November 3, 2025 (Ep.474)
Welcome to your daily cybersecurity briefing 🕵️♂️🔥 🐚 Rhysida — Malvertising Campaign and Code-Signing Abuse The Rhysida ransomware gang continues its campaign using OysterLoader — also known as Broomstick or CleanUpLoader — as an initial access tool.Expel reports more than 40 abused code-signing certificates since June 2025, including several issued through Microsoft Trusted Signing.These certificates […]
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By RadioCSIRTWelcome to your daily cybersecurity briefing 🕵️♂️🔥 🐚 Rhysida — Malvertising Campaign and Code-Signing Abuse The Rhysida ransomware gang continues its campaign using OysterLoader — also known as Broomstick or CleanUpLoader — as an initial access tool.Expel reports more than 40 abused code-signing certificates since June 2025, including several issued through Microsoft Trusted Signing.These certificates […]