LWA-2026-6976 MAL-2026-12117 ↗ confirmed malware

1239i32049i@0.1.0

Malicious code in 1239i32049i (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web Protocols

Analysis

The package runs a postinstall hook that fetches a base64-encoded payload from hxxps://dropper-crm[.]vercel[.]app/api/payload/ (parameterized by the environment variable P) and executes it as arbitrary JavaScript via new Function('require', ...). This is a remote code execution dropper — the published package is a small bootstrap that downloads and runs a second-stage payload from an attacker-controlled Vercel endpoint.

analyzed by
Leitwacht
first seen
Jul 21, 2026, 03:43 PM
analyzed
Jul 21, 2026, 03:43 PM

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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.