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Fake LastPass Authenticator Installer Abuses Microsoft-Signed Driver to Kill Antivirus and EDR

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Fake LastPass Authenticator Installer Abuses Microsoft-Signed Driver to Kill Antivirus and EDR

A malicious installer masquerading as the LastPass Authenticator and hosted on GitHub delivers a Windows kernel driver signed by Microsoft's hardware-compatibility program. The driver disables antivirus and endpoint detection and response (EDR) software, allowing a password stealer payload to execute undetected.

Why it matters: Organizations and individuals using or managing LastPass deployments face immediate risk from supply chain impersonation; the Microsoft-signed driver represents a significant evasion technique that bypasses common defenses.

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