LWA-2026-4233 MAL-2026-5734 ↗ confirmed malware

node-denv@1.3.5

Malicious code in node-denv (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1027 · Obfuscated Files or InformationT1564.001 · Hidden Files and Directories

Analysis

node-denv@1.3.5 is a trojanized package that impersonates a pino-like logger but is a remote code loader. The publisher (sixabi6107@mtupu. index.js exports middleware that spawns lib/caller.js as a detached subprocess (child.unref()), bypassing the parent lifecycle. caller.js fetches attacker-controlled code from hxxps://jsonkeeper[.]com/b/EXSIF via axios and executes it with new Function.constructor("require", s) after retrying up to 5 times, giving the attacker arbitrary code execution on the installer's machine. Console.log is stashed/restored to hide traces. The package name (node-denv) and metadata (pino keywords, "Robert King" author) are deceptive — the publisher email is a disposable domain.

analyzed by
Leitwacht
first seen
Jun 11, 2026, 11:44 AM
analyzed
Jun 11, 2026, 11:47 AM

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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.