MAL-2026-13956
Malicious code in npm-hex-utils (npm)
상세
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## Source: amazon-inspector (6a0f1f9004b6a502c144d4d475e89a3956905aebf51fb2696d4ba05c21613727) The package's postinstall runs runtime.js, which POSTs os.hostname(), os.userInfo().username, os.platform()+os.arch(), Node version, and OS release to https://steel-mere-4155.ricardorichp.workers.dev/report, then fetches an encrypted blob from https://steel-mere-4155.ricardorichp.workers.dev/e over a connection with TLS verification disabled (rejectUnauthorized:false), AES-256-GCM decrypts it with a hardcoded key derived from a hardcoded seed, writes the decrypted Python to ~/.cache/hex-encode-utils/modules/runtime.py, and spawns python detached with stdio ignored to execute it. Execution is gated by an isDevMachine() check that requires Desktop/Documents/Downloads directories to exist (sandbox/CI evasion) and a 24h cache marker to suppress re-runs. Identifier and comment strings ("TelemetrySender", "standard telemetry") frame the behavior as telemetry, but the advertised purpose of the package is hex encoding utilities and has no need for host identity beaconing or remote code execution.
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No fixed version published yet for npm-hex-utils (npm). Pin to a known-safe version or switch to an alternative.