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@onescience/onecode@1.14.50-202609201357: Malicious npm security | LPM Firewall

registry / @onescience/onecode / 1.14.50-202609201357

@onescience/onecode@1.14.50-202609201357

OneScience AI coding agent for the terminal.

AI Security Review

scanned 18d ago · by lpm-firewall-ai

Installing the package automatically retrieves and installs an unverified remote native payload. No source integrity check or TLS certificate validation protects the download.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review

Trigger

npm postinstall during package installation.

Impact

A network attacker or endpoint operator can supply executable native code that will be installed for the package launcher.

Mechanism

postinstall calls the bootstrap, which downloads a tarball from the fixed endpoint with rejectUnauthorized disabled, extracts it, and makes the resulting binary executable.

Attack narrative

The install lifecycle invokes a bootstrap that contacts a hard-coded IP address with TLS verification disabled. The response is saved as a tar archive, extracted into node_modules, and its binary is made executable. This makes the installed executable depend on unauthenticated remote content during installation.

AI rationale

The package contains a concrete automatic install-time remote native-code delivery path with certificate verification disabled and no integrity verification. This is unsafe executable payload installation, not ordinary package setup.

Evidence

package.jsonpostinstall.mjsplatform-bootstrap.mjs

Network endpoints1

218.90.133.98:4443/onecode_tgz

Decision evidence

Source & flagged code

7 flagged · loading source

package.jsonView file

•scripts.postinstall = node ./postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

10scripts.postinstall = node ./postinstall.mjs Install-time code downloads an unverified remote native archive, stages it locally, activates an executable path, and exposes it to process execution. L10: import os from "os" L11: import https from "https" L12: import { fileURLToPath } from "url" ... L15: const product = "onecode" L16: const DEFAULT_TGZ_BASE = "https://218.90.133.98:4443/onecode_tgz" L17: ... L78: const binaryName = detectPlatformAndArch().platform === "windows" ? `${product}.exe` : product L79: const binaryPath = path.join(rootDir, "node_modules", packageName, "bin", binaryName) L80: if (!fs.existsSync(binaryPath)) return null L81: return { binaryPath, binaryName, packageName } L82: } ... L99: return new Promise((resolve, reject) => {

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L10

10"scripts": { "postinstall": "node ./postinstall.mjs" }

High

Suspicious Lifecycle Evidence

The manifest automatically runs postinstall.

package.jsonView on unpkg · L10

•scripts.postinstall = node ./postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

bin/onecodeView file

•matchType = normalized_sha256 matchedPackage = @onescience/onecode@1.14.50-202608241715 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202608241715 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.

bin/onecodeView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 96df80412fc42a9f signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @onescience/onecode@1.14.50-202608241715 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202608241715 similarity = 1.000 shingleOverlap = 3 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

bin/onecodeView on unpkg

platform-bootstrap.mjsView file

•matchType = normalized_sha256 matchedPackage = @onescience/onecode@1.14.50-202608241715 matchedPath = platform-bootstrap.mjs matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202608241715 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.

platform-bootstrap.mjsView on unpkg

Source & flagged code

7 flagged

package.jsonView file

Lines 1-13json

1{

2 "name": "@onescience/onecode",

3 "version": "1.14.50-202609201357",

4 "private": false,

5 "license": "MIT",

6 "description": "OneScience AI coding agent for the terminal.",

7 "bin": {

8 "onecode": "./bin/onecode"

9 },

10 "scripts": {

11 "postinstall": "node ./postinstall.mjs"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L11

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L11

12 }

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L10

High

Suspicious Lifecycle Evidence

The manifest automatically runs postinstall.

package.jsonView on unpkg · L10

13}

bin/onecodeView file

•matchType = normalized_sha256 matchedPackage = @onescience/onecode@1.14.50-202608241715 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202608241715 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.

bin/onecodeView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 96df80412fc42a9f signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @onescience/onecode@1.14.50-202608241715 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202608241715 similarity = 1.000 shingleOverlap = 3 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

bin/onecodeView on unpkg

platform-bootstrap.mjsView file

•matchType = normalized_sha256 matchedPackage = @onescience/onecode@1.14.50-202608241715 matchedPath = platform-bootstrap.mjs matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202608241715 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.

platform-bootstrap.mjsView on unpkg