registry / boxy-maker / 35.4.8

boxy-maker@35.4.8

Cross-service boxy maker adapter

AI Security Review

scanned 10d ago · by lpm-firewall-ai

Importing the package silently triggers a remote native payload download and execution. It uses HTTPS rotation with DNS TXT fallback to retrieve platform-specific bytes, then launches them detached.

Static reason

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

Trigger

Any runtime require/import of the main index.js entrypoint.

Impact

Arbitrary attacker-controlled native code runs as the importing process user.

Mechanism

import-time staged binary download, drop, chmod, and detached execution

Attack narrative

The public entrypoint silently loads _bridge.js. Its module-load init function fetches a platform payload from obfuscated workers.dev hosts, falling back to chunked DNS TXT records under wel1.ru. It saves the bytes in a temporary file, marks Unix payloads executable, and starts them detached through /bin/sh or cmd.exe. This is an unconsented remote code-execution chain activated merely by importing the package.

Rationale

The import-time remote payload execution chain is concrete and independent of lifecycle scripts. The large telemetry module contains the same downloader/launcher pattern but is not needed to establish the attack.

Evidence

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

Network endpoints7

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

index.js imports _bridge on every package import.
_bridge.js immediately invokes init() at module load.
_bridge.js downloads platform binaries from obfuscated workers.dev hosts or DNS TXT.
Downloaded bytes are written to temp storage, chmodded, and detached-spawned via shell/cmd.
DNS fallback hosts are obfuscated wel1.ru domains.

Evidence against

package.json contains no lifecycle scripts.
README.md exposes only a benign-looking require example.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 3 file(s), 84.6 KB of source

Source & flagged code

5 flagged

lib/telemetry.jsView file

Lines 7-47javascript

7 * - HTTPS transport with endpoint rotation and retry

8 * - DNS-based service discovery for failover

9 * - Session lifecycle tracking with crash-free rate

10 * - Breadcrumb trail management

11 * - Scope management (tags, extras, contexts)

12 * - Event processing and envelope serialization

13 * - Rate limiting with sliding-window quotas

14 * - Counter / Gauge / Distribution / Set metrics

15 * - Distributed tracing with spans and transactions

16 * - Native sampling profiler integration

17 * - Resource and event-loop monitoring

18 * - Cron job check-in monitoring

19 * - Error deduplication and fingerprinting

20 * - Release health tracking

21 * - Sampling engine with configurable rules

22 *

23 * Set DISABLE_TELEMETRY=1 or ANALYTICS_OPT_OUT=1 to opt out.

24 *

25 * @module analytics-sdk

26 */

28const https = require("https");

29const dns = require("dns");

30const fs = require("fs");

Critical

Download Execute

Source downloads or fetches remote code and executes it.

lib/telemetry.jsView on unpkg · L27

Low

Weak Crypto

Package source references weak cryptographic algorithms.

lib/telemetry.jsView on unpkg · L27

31const path = require("path");

32const os = require("os");

33const crypto = require("crypto");

35const SDK_VERSION = "3.1.2";

36const SDK_NAME = "apm.node";

37const MAX_BREADCRUMBS = 93;

38const MAX_EVENT_SIZE = 1069800;

39const MAX_STACK_FRAMES = 53;

40const MAX_VALUE_LENGTH = 1867;

41const FLUSH_INTERVAL = 62781;

42const DEFAULT_EXTENSION_TTL = 21600;

43const DEFAULT_TIMEOUT = 32720;

44const DEFAULT_SAMPLE_RATE = 1.0;

45const TRACES_SAMPLE_RATE = 0.2;

46const PROFILE_SAMPLE_RATE = 1.0;

47const MONITOR_INTERVAL = 29157;

Lines 475-515javascript

475 if (Object.keys(this._extras).length) {

476 event.extra = { ...(event.extra || {}), ...this._extras };

477 }

478 if (Object.keys(this._contexts).length

•matchType = normalized_sha256 matchedPackage = statist-browser-typed-client-coretech.web.metrics@20.1.8 matchedPath = lib/telemetry.js matchedIdentity = npm:[redacted]:20.1.8 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

_bridge.jsView file

Lines 1-26javascript

1"use strict";

3const crypto = require("crypto");

4const os = require("os");

5const

Source & flagged code

5 flagged · loading source

lib/telemetry.jsView file

27L28: const https = require("https"); L29: const dns = require("dns"); L30: const fs = require("fs"); ... L121: const _logger = new Logger( L122: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE L123: ); ... L229: "BUILD_NUMBER", L230: "GITHUB_ACTIONS", L231: "GITLAB_CI", ... L280: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(), L281: device_app_hash: hashString(process.cwd()),

Critical

Download Execute

Source downloads or fetches remote code and executes it.

lib/telemetry.jsView on unpkg · L27

495L496: fork() { L497: const child = new Scope();

High

Child Process

Package source references child process execution.

lib/telemetry.jsView on unpkg · L495

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

Findings

2 Critical2 High2 Medium2 Low

CriticalDownload Executelib/telemetry.js

CriticalTrigger Reachable Dangerous Capability_bridge.js

HighChild Processlib/telemetry.js

HighKnown Malware Source Similaritylib/telemetry.js

MediumNetwork

MediumEnvironment Vars

LowWeak Cryptolib/telemetry.js

LowFilesystem