LWA-2026-5400 MAL-2026-5807 ↗ confirmed malware

sam-package@1.0.1

Malicious code in sam-package (npm)

T1071.001 · Web ProtocolsT1041 · Exfiltration Over C2 Channel

Analysis

The postinstall script silently fires an HTTPS GET to webhooksite[.]net/206fe563-3cfb-42fc-b589-b8b748b4c640 on every installation, acting as a beacon that transmits the installer's IP address, user-agent, and request metadata to a remote collector. This behaviour is unrelated to the advertised greeting-function module and is not disclosed in the package documentation.

analyzed by
Leitwacht
first seen
Jun 15, 2026, 03:23 PM
analyzed
Jun 15, 2026, 03:25 PM
weekly installs
1,379

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.