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@onescience/onecode@1.14.50-202609011428: Malicious npm security | LPM Firewall

registry / @onescience/onecode / 1.14.50-202609011428

@onescience/onecode@1.14.50-202609011428

OneScience AI coding agent for the terminal.

AI Security Review

scanned 25d ago · by lpm-firewall-ai

Installing the package fetches an unauthenticated remote native archive, extracts it, and installs an executable. It also replaces hidden asset paths in the package root with links to the downloaded content.

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 installation, through the postinstall lifecycle hook.

Impact

A network attacker or the fixed remote server can supply executable code that is later run by the package launcher.

Mechanism

TLS-bypassing remote payload download and native executable installation.

Attack narrative

During npm postinstall, the package invokes a bootstrapper that downloads a versioned archive from a hard-coded IP address while disabling TLS certificate verification. It follows redirects, extracts the archive with tar, moves the result into node_modules, marks the native binary executable, and links it for later execution by the onecode launcher. The archive has no signature, checksum, or other integrity verification.

AI rationale

This is a concrete automatic install-time remote code delivery path with certificate verification disabled and no payload integrity check. The postinstall also mutates hidden asset links, increasing the scope of untrusted downloaded content.

Evidence

package.jsonpostinstall.mjsplatform-bootstrap.mjsnode_modules/onecode-linux-x64/bin/onecodebin/.onecode.opencode.oneskills.platform-bootstrap-work

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 package automatically runs a postinstall script.

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@1.14.50-202609111612 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111612 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@1.14.50-202609111612 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111612 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@1.14.50-202609111612 matchedPath = platform-bootstrap.mjs matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111612 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": "1.14.50-202609011428",

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 package automatically runs a postinstall script.

package.jsonView on unpkg · L10

13}

bin/onecodeView file

•matchType = normalized_sha256 matchedPackage = @onescience/onecode@1.14.50-202609111612 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111612 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@1.14.50-202609111612 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111612 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@1.14.50-202609111612 matchedPath = platform-bootstrap.mjs matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111612 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