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highOthersecurity advisoryms_security_blog · Oct 31, 2026
Inside a malicious Claude Code-branded extension and its persistent SSH backdoor
Microsoft has identified a malicious extension branded as Claude Code that includes a persistent SSH backdoor, posing a significant security risk. This advisory provides detection and remediation guidance to help organizations protect their systems.
“Microsoft analyzes a malicious Claude Code–branded extension, its persistent SSH backdoor, and guidance to detect and remediate it. The post Inside a malicious Claude Code-branded extension and its persistent SSH backdoor appeared first on Microsoft Security Blog.”
View original article →Security
threat_protectionendpoint_security
Audience
security_engineeradmin
Environment
cloudon_premises
Ontology Topics
AZ-500SC-200
Classification confidence: 90%
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