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Claude Code extension poisoned with persistent SSH backdoor
A tampered build of Anthropic’s Claude Code extension for VS Code-compatible editors planted an SSH backdoor on developers’ machines, researchers at macOS security firm Phorion have found. The company spotted the malicious package, version 2.1.313, on Open VSX, an open-source mar
Help Net Security··3 min read
A tampered build of Anthropic’s Claude Code extension for VS Code-compatible editors planted an SSH backdoor on developers’ machines, researchers at macOS security firm Phorion have found. The company spotted the malicious package, version 2.1.313, on Open VSX, an open-source marketplace for VS Code extensions run by the Eclipse Foundation. VS Code’s default extension store is Microsoft’s Visual Studio Marketplace, where no malicious version has been reported. Its terms of use limit it to Microsoft’s … More → The post Claude Code extension poisoned with persistent SSH backdoor appeared first on Help Net Security.