@vanzxy/baileys@2.0.4

⚠ Under review

Vanzxy🍃 Baileys: an enhanced, ESM-only WhatsApp Web (multi-device) library for Node.js, crafted and maintained by Vanzxy🍃 (Revan). Built on @itsliaaa/baileys and @whiskeysockets/baileys.

This package appears in our research on the malicious Baileys forks, with how it works, the full package list and what to do if you installed it.

Static Scan Results

scanned 22d ago · by rust-scanner

Static analysis completed at 97.0% confidence. No malicious behavior was detected; 18 low-signal pattern(s) were surfaced and cleared.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Decision evidence

public snapshot

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsEvalFilesystemNetworkWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

ManifestNo manifest risk signals triggered.

scanned 211 file(s), 3.78 MB of source, external domains: a2ui.org, call.whatsapp.com, emscripten.org, example.com, fburl.com, mock.local, raw.githubusercontent.com, wa.me, web.whatsapp.com, www.internalfb.com, www.whatsapp.com

Oversized source lightweight scan

WAProto/index.js6.30 MB file, sampled 256 KB

No sampled risky behavior triggered.

Source & flagged code

11 flagged

package.jsonView file

Lines 8-48json

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

9 "exports": {

10 ".": {

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

12 "import": "./lib/index.js",

13 "default": "./lib/index.js"

14 },

15 "./lib/*": {

16 "types": "./lib/*.d.ts",

17 "import": "./lib/*",

18 "default": "./lib/*"

19 },

20 "./WAProto": {

21 "import": "./WAProto/index.js",

22 "default": "./WAProto/index.js"

23 },

24 "./WAProto/*": "./WAProto/*",

25 "./package.json": "./package.json"

26 },

27 "scripts": {

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L28

29 "prestart": "node ./VanzxyBanner.js"

30 },

31 "engines": {

32 "node": ">=20.0.0"

33 },

34 "repository": {

35 "type": "git",

36 "url": "git+https://github.com/vanzxysenpai/vanzxybaileys.git"

37 },

38 "files": [

39 "lib/**/*",

40 "WAProto/**/*",

41 "engine-requirements.js",

42 "VanzxyBanner.js",

43 "NOTICE.md",

44 "LICENSE",

45 "README.md"

46 ],

47 "keywords": [

48 "vanzxy",

lib/WABinary/constants.jsView file

Lines 580-620javascript

580 '044',

581 'mms_cat_v1_forward_hot_override_enabled',

582 'user_notice',

583 'ptt_waveform_send',

584 '047',

585 'Asia/Calcutta',

586

lib/VoIP/worker-bootstrap.jsView file

Lines 326-366javascript

326__modules["Promise"] = { exports: Promise };

327const bxFunc = function (id) { return id; };

328bxFunc.getURL = function

lib/VoIP/wasm-engine.jsView file

Lines 1-37javascript

1var _a;

2/**

3 * WhatsApp VoIP WASM engine.

4 *

5 * Loads the WhatsApp Web VoIP WASM stack inside a Node.js `vm.Context`,

6 * spawns a 20-thread `worker_threads` pool to mirror the browser's pthread

7 * model, and exposes a callback-based JS bridge. Audio-only (no video).

8 *

9 * @author ShellTear

lib/Utils/crypto.jsView file

Lines 1-21javascript

1import { createCipheriv, createDecipheriv, createHash, createHmac, randomBytes } from 'crypto';

2import * as curve from 'libsignal/src/curve.js';

Low

Weak Crypto

Package source references weak cryptographic algorithms.

lib/Utils/crypto.jsView on unpkg · L1

3import { KEY_BUNDLE_TYPE } from

lib/assets/wasm/whatsapp.wasmView file

•path = lib/assets/wasm/whatsapp.wasm kind = wasm_module sizeBytes = 9819554 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

lib/assets/wasm/whatsapp.wasmView on unpkg

WAProto/index.jsView file

•stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 6

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

WAProto/index.jsView on unpkg

•path = WAProto/index.js kind = oversized_source_file sizeBytes = 6608558 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-media.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @vanzxy/baileys@2.0.3 matchedIdentity = npm:QHZhbnp4eS9iYWlsZXlz:2.0.3 similarity = 0.475 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

lib/Utils/messages-media.jsView on unpkg

Source & flagged code

11 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

600patternName = google_api_key severity = high line = 600

High

High Secret

Package contains a high-severity secret pattern.

lib/WABinary/constants.jsView on unpkg · L600

•matchType = normalized_sha256 matchedPackage = @vanzxy/baileys@1.4.6 matchedPath = lib/WABinary/constants.js matchedIdentity = npm:QHZhbnp4eS9iYWlsZXlz:1.4.6 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/WABinary/constants.js

Findings

6 High6 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighHigh Secretlib/WABinary/constants.js

HighSemantic Analysis LimitedWAProto/index.js

HighKnown Malware Source Similaritylib/WABinary/constants.js

HighPrevious Version Dangerous Deltalib/Utils/messages-media.js

HighSecret Patternlib/WABinary/constants.js

MediumUnsafe Vm Contextlib/VoIP/wasm-engine.js

MediumNetwork

MediumEnvironment Vars

MediumShips Wasm Modulelib/assets/wasm/whatsapp.wasm

MediumOversized Source FileWAProto/index.js

MediumStructural Risk Force Deep Review

LowScripts Present

Affected versions and remediation

This report applies to @vanzxy/baileys@2.0.4.

See all versions of @vanzxy/baileys for other recorded verdicts.

Review the evidence and your use of @vanzxy/baileys@2.0.4 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-01 12:48:31.637Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.