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wailib@1.0.0: Malicious npm security report (Block) | LPM Firewall

registry / wailib / 1.0.0

wailib@1.0.0

WhatsApp Web API Library | fork com normalizadores LID (porta @boruto_vk7/baileys)

AI Security Review

scanned 6d ago · by lpm-firewall-ai

No confirmed malicious attack surface. Installation executes only a local Node-version compatibility check; network and media helpers require runtime calls.

Static reason

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

Trigger

npm preinstall or explicit runtime helper invocation

Impact

Older Node installations are rejected; no unconsented collection or exfiltration established.

Mechanism

Node version validation and caller-supplied media processing

AI rationale

Direct inspection shows the preinstall hook only enforces Node 20+. Flagged dynamic loading, process spawning, file writes, and networking are explicit runtime media/library utilities, not an install-time or import-time malicious chain.

Evidence

package.jsonengine-requirements.jslib/Utils/messages-media.jslib/Utils/generics.jslib/Store/make-in-memory-store.js

OSV advisory

OpenSSF/OSV

Advisory

MAL-2026-17451

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in wailib (npm)

Details

This package is a fork of the Baileys WhatsApp Web library (npm) and belongs to the "PhantomSub" family described by OX Security in September 2026: the publisher injected code that, without the installer asking, uses the installer's own authenticated WhatsApp session to subscribe that account to WhatsApp Channels (newsletters) the publisher chose, by sending the WhatsApp `w:mex` FOLLOW query (query_id 7871414976211147) for each target channel JID. `package/lib/Socket/messages-recv.js` lines 45-72 define a char-code decoder (`qvnr`) and use it to build two channel JIDs, `120363428355171197@newsletter` and `120363425751417260@newsletter`, and the method names `newsletterFollow` (`pzha`, cited line 62: `const pzha = qvnr([`) and `newsletterMute` (`wjcf`, line 68), so neither the JIDs nor the method names appear in the source as text. Lines 1125-1140, in the `connection.update` handler, wait 30 seconds after the connection opens and then, for each JID, call `sock[pzha](id)` to follow the channel and, 3 seconds later, `sock[wjcf](id)` to mute it, so the victim is not notified of the channel's posts. There is no opt-out. The README (Portuguese) states "Sem auto-follow de canais — removida a rotina que seguia canais automaticamente apos conectar" ("No channel auto-follow — the routine that followed channels automatically after connecting was removed"), which the shipped code contradicts. The code is derived from `noxleyss` (MAL-2026-17402), whose name it still uses in `package/lib/Utils/generics.js`. Line numbers refer to version 1.0.0. Static review of the published tarball(s) found no code that sends WhatsApp credentials or session keys off-host, no install-time payload (the only install hook is Baileys' stock Node.js version check in `engine-requirements.js`), and no persistence; the payload runs when an application creates a WhatsApp socket with the library. The harm is the covert use of the victim's account to inflate the publisher's channel subscribers. SHA-256 of the published npm tarball(s): 1.0.0: `e762bd70253081e1f523e929509e8bd5ff005feaaec6580f8f8b95ee84085920`.

Source & flagged code

9 flagged · loading source

package.jsonView file

•scripts.preinstall = node ./engine-requirements.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

lib/WABinary/constants.jsView file

603patternName = google_api_key severity = high line = 603 matchedText = 'AIzaSyD...Lk',

High

High Secret

Package contains a high-severity secret pattern.

lib/WABinary/constants.jsView on unpkg · L603

603patternName = google_api_key severity = high line = 603 matchedText = 'AIzaSyD...Lk',

High

Secret Pattern

Google API key in lib/WABinary/constants.js

lib/WABinary/constants.jsView on unpkg · L603

lib/Utils/messages-media.jsView file

•matchType = normalized_sha256 matchedPackage = levvleys@2.0.7 matchedPath = lib/Utils/messages-media.js matchedIdentity = npm:bGV2dmxleXM:2.0.7 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/Utils/messages-media.jsView on unpkg

369try { L370: const { default: decoder } = await eval('import(\'audio-decode\')'); L371: let audioData;

Low

Eval

Package source references a known benign dynamic code generation pattern.

lib/Utils/messages-media.jsView on unpkg · L369

lib/Types/Message.jsView file

3exports.WAMessageStatus = exports.WAMessageStubType = exports.WAProto = void 0; L4: const WAProto_1 = require("../../WAProto"); L5: Object.defineProperty(exports, "WAProto", { enumerable: true, get: function () { return WAProto_1.proto; } });

Medium

Dynamic Require

Package source references dynamic require/import behavior.

lib/Types/Message.jsView on unpkg · L3

WAProto/GenerateStatics.shView file

•path = WAProto/GenerateStatics.sh kind = build_helper sizeBytes = 301 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

WAProto/GenerateStatics.shView on unpkg

WAProto/index.jsView file

•path = WAProto/index.js kind = oversized_source_file sizeBytes = 4435234 magicHex = [redacted]

Medium

Oversized Source File

Package contains source files above the normal full-analysis size ceiling.

WAProto/index.jsView on unpkg

lib/Utils/messages.jsView file

•matchType = normalized_sha256 matchedPackage = levvleys@2.0.7 matchedPath = lib/Utils/messages.js matchedIdentity = npm:bGV2dmxleXM:2.0.7 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/Utils/messages.jsView on unpkg

Source & flagged code

9 flagged

package.jsonView file

Lines 26-66json

26 "main": "lib/index.js",

27 "types": "lib/index.d.ts",

28 "files": [

29 "lib/",

30 "WAProto/",

31 "engine-requirements.js"

32 ],

33 "scripts": {

34 "build:all": "tsc && typedoc",

35 "build:docs": "typedoc",

36 "build:tsc": "tsc",

37 "changelog:last": "conventional-changelog -p angular -r 2",

38 "changelog:preview": "conventional-changelog -p angular -u",

39 "changelog:update": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0",

40 "example": "node --inspect -r ts-node/register Example/example.ts",

41 "gen:protobuf": "sh WAProto/GenerateStatics.sh",

42 "lint": "node -e \"const { execSync } = require('child_process'); execSync('find lib/ -name \\\"*.js\\\" | xargs -I{} node --check {}'); console.log('LINT_OK');\"",

43 "lint:fix": "eslint lib --fix --ext .js",

44 "prepack": "echo 'wailib WhatsApp Library'",

45 "prepare": "echo 'wailib WhatsApp Library'",

46 "preinstall": "node ./engine-requirements.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L46

47 "release": "release-it",

48 "test": "jest"

49 },

50 "dependencies": {

51 "@adiwajshing/keyed-db": "^0.2.4",

52 "@cacheable/node-cache": "^1.4.0",

53 "@hapi/boom": "^9.1.3",

54 "async-mutex": "^0.5.0",

55 "axios": "^1.6.0",

56 "cache-manager": "^5.7.6",

57 "chalk": "^4.1.2",

58 "cheerio": "^1.0.0-rc.10",

59 "gradient-string": "^2.0.2",

60 "libphonenumber-js": "^1.10.20",

61 "libsignal": "npm:@noxzaid/libsignal-node",

62 "lodash": "^4.17.21",

63 "lru-cache": "^11.1.0",

64 "music-metadata": "^7.12.3",

65 "p-queue": "^9.0.0",

66 "pino": "^9.6",

lib/WABinary/constants.jsView file

Lines 583-623javascript

583 '044',

584 'mms_cat_v1_forward_hot_override_enabled',

585 'user_notice',

586 'ptt_waveform_send',

587 '047',

588 'Asia/Calcutta',

589

lib/Utils/messages-media.jsView file

Lines 349-389javascript

349};

350exports.mediaMessageSHA256B64 = mediaMessageSHA256B64;

351async function getAudioDuration(buffer) {

352 const musicMetadata = await Promise.

lib/Types/Message.jsView file

Lines 1-8javascript

1"use strict";

2Object.defineProperty(exports, "__esModule", { value: true });

3exports.WAMessageStatus = exports.WAMessageStubType = exports.WAProto = void 0

WAProto/GenerateStatics.shView file

•path = WAProto/GenerateStatics.sh kind = build_helper sizeBytes = 301 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

WAProto/GenerateStatics.shView on unpkg

WAProto/index.jsView file

•path = WAProto/index.js kind = oversized_source_file sizeBytes = 4435234 magicHex = [redacted]

Medium

Oversized Source File

Package contains source files above the normal full-analysis size ceiling.

WAProto/index.jsView on unpkg

lib/Utils/messages.jsView file

•matchType = normalized_sha256 matchedPackage = levvleys@2.0.7 matchedPath = lib/Utils/messages.js matchedIdentity = npm:bGV2dmxleXM:2.0.7 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/Utils/messages.jsView on unpkg