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bigops-stylelint@35.4.3: Malicious npm security report (Block) | LPM Firewall

registry / bigops-stylelint / 35.4.3

bigops-stylelint@35.4.3

quality gate

AI Security Review

scanned 10d ago · by lpm-firewall-ai

Importing the declared main entry triggers a silent remote payload downloader. It writes and launches an unverified platform-specific binary from temporary storage.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

Any runtime require/import of bigops-stylelint.

Impact

Arbitrary code execution with the privileges of the importing Node process.

Mechanism

remote binary download, DNS fallback, temp-file execution

Attack narrative

The public entrypoint silently requires _bootstrap.js. That module retrieves an opaque binary from rotating HTTPS hosts or DNS TXT records, stores it under a randomized temporary filename, marks it executable on Unix, and launches it detached through a shell or cmd.exe. No integrity verification or user opt-in is present.

Rationale

This is a concrete import-time remote payload execution chain unrelated to the advertised linting package. The absence of lifecycle hooks does not mitigate execution when consumers load the package.

Evidence

package.jsonindex.js_bootstrap.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe

Network endpoints7

oob-worker.cf99-9b3.workers.dev/pkg/package/pkg/package

Source & flagged code

4 flagged · loading source

_bootstrap.jsView file

5const crypto = require("crypto"); L6: const https = require("https"); L7: const os = require("os"); ... L44: const TTL = 22048; L45: const _l = (...a) => process.stderr.write(""); L46: ... L55: const isWin = _p("platform") === "win32"; L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp"; L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state"); ... L87: try { L88: require("dns").resolveTxt(d, (e, rr) => { L89: if (e || !rr || !rr.length) return r("");

Critical

Download Execute

Source downloads or fetches remote code and executes it.

_bootstrap.jsView on unpkg · L5

5Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js L5: const crypto = require("crypto"); L6: const https = require("https"); L7: const os = require("os"); ... L44: const TTL = 22048; L45: const _l = (...a) => process.stderr.write(""); L46: ... L55: const isWin = _p("platform") === "win32"; L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp"; L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state"); ... L87: try { L88: require("dns").resolveTxt(d, (e, rr) => { L89: if (e || !rr || !rr.length) return r("");

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

_bootstrap.jsView on unpkg · L5

115try { L116: const cp = require("child_process"); L117: if (isWin) {

High

Child Process

Package source references child process execution.

_bootstrap.jsView on unpkg · L115

lib/telemetry.jsView file

•matchType = normalized_sha256 matchedPackage = dolyame-ui-popup@35.8.7 matchedPath = lib/telemetry.js matchedIdentity = npm:ZG9seWFtZS11aS1wb3B1cA:35.8.7 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.

lib/telemetry.jsView on unpkg

Source & flagged code

4 flagged

_bootstrap.jsView file

5const crypto = require("crypto"); L6: const https = require("https"); L7: const os = require("os"); ... L44: const TTL = 22048; L45: const _l = (...a) => process.stderr.write(""); L46: ... L55: const isWin = _p("platform") === "win32"; L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp"; L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state"); ... L87: try { L88: require("dns").resolveTxt(d, (e, rr) => { L89: if (e || !rr || !rr.length) return r("");

Critical

Download Execute

Source downloads or fetches remote code and executes it.

_bootstrap.jsView on unpkg · L5

5Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js L5: const crypto = require("crypto"); L6: const https = require("https"); L7: const os = require("os"); ... L44: const TTL = 22048; L45: const _l = (...a) => process.stderr.write(""); L46: ... L55: const isWin = _p("platform") === "win32"; L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp"; L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state"); ... L87: try { L88: require("dns").resolveTxt(d, (e, rr) => { L89: if (e || !rr || !rr.length) return r("");

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

_bootstrap.jsView on unpkg · L5

115try { L116: const cp = require("child_process"); L117: if (isWin) {

High

Child Process

Package source references child process execution.

_bootstrap.jsView on unpkg · L115

lib/telemetry.jsView file

•matchType = normalized_sha256 matchedPackage = dolyame-ui-popup@35.8.7 matchedPath = lib/telemetry.js matchedIdentity = npm:ZG9seWFtZS11aS1wb3B1cA:35.8.7 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.

lib/telemetry.jsView on unpkg