registry / Malware / @nyzzpedia/baileys / 1.0.2

@nyzzpedia/baileys@1.0.2

WhatsApp Web multi-device API — maintained by Nyzzpedia

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.

AI Security Review

scanned 9d ago · by lpm-firewall-ai

Source inspection confirms a default-on, publisher-selected account action that runs after connection, so this is concrete unauthorized account modification. The closest available threat type is malware; no install-time attack is needed to establish the runtime behavior.

Static reason

One or more suspicious static signals were detected.

Trigger

Creating the normal socket and receiving an open connection event, unless autoFollowNewsletters is explicitly set to false.

Impact

The account is subscribed to newsletters the user did not select.

Mechanism

A connection handler schedules authenticated FOLLOW requests for hard-coded newsletter IDs.

Attack narrative

When the package creates its normal socket and the WhatsApp connection opens, it schedules FOLLOW operations for eight hard-coded newsletters. The behavior is enabled by default and changes the authenticated account's subscriptions without the user choosing those newsletters.

AI rationale

Evidence

lib/Socket/newsletter.jslib/Socket/messages-send.jslib/Socket/index.jslib/index.jslib/Defaults/index.js

Network endpoints1

wss://web.whatsapp.com/ws/chat

Decision evidence

public snapshot

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

Evidence for block

lib/Socket/newsletter.js enables automatic newsletter follows unless autoFollowNewsletters is explicitly false.
The follow handler activates when the authenticated connection opens and runs once.
It schedules follow requests for eight hard-coded newsletter IDs.
Each request uses the FOLLOW operation to join its selected newsletter.
The normal message socket constructs the newsletter socket, and the package entrypoint loads the socket API.
The default connection uses WhatsApp's WebSocket endpoint.

Evidence against

Behavioral surface

Source

ChildProcessCryptoFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 124 file(s), 4.90 MB of source, external domains: call.whatsapp.com, raw.githubusercontent.com, wa.me, web.whatsapp.com, www.whatsapp.com

Source & flagged code

6 flagged

package.jsonView file

Lines 13-53json

13 "stvnnvs"

14 ],

15 "homepage": "https://nyzz.my.id",

16 "repository": {

17 "type": "git",

18 "url": "git+https://github.com/nyzzpedia/baileys.git"

19 },

20 "license": "MIT",

21 "author": "Nyzzpedia",

22 "type": "commonjs",

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

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

25 "files": [

26 "lib/*",

27 "WAProto/*.js",

28 "WAProto/*.d.ts",

29 "engine-requirements.js",

30 "vendor/*"

31 ],

32 "scripts": {

33 "preinstall": "node ./engine-requirements.js"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L33

34 },

35 "dependencies": {

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

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

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

39 "audio-decode": "^2.1.3",

40 "axios": "^1.3.3",

41 "cache-manager": "4.0.1",

42 "chalk": "^4.1.2",

43 "curve25519-js": "^0.0.4",

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

45 "lodash": "^4.17.21",

46 "long": "^5.2.3",

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

48 "music-metadata": "^11.12.3",

49 "node-cache": "^5.1.2",

50 "node-fetch": "^2.6.1",

51 "p-queue": "^6.6.2",

52 "pino": "^9.6.0",

53 "protobufjs": "^7.5.6",

lib/WABinary/constants.jsView file

Lines 605-645javascript

605 "044",

606 "mms_cat_v1_forward_hot_override_enabled",

607 "user_notice",

608 "ptt_waveform_send",

609 "047",

610 "Asia/Calcutta",

611

WAProto/index.jsView file

•stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 1

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

lib/WABinary/constants.d.tsView file

Lines 1-28typescript

1export declare const TAGS: {

2 LIST_EMPTY: number;

3 DICTIONARY_0: number;

4 DICTIONARY_1:

lib/Socket/newsletter.jsView file

Lines 64-104javascript

64 const newsletterUpdate = async (jid, updates) => {

65 const variables = {

66 newsletter_id: jid,

67 updates: {

Source & flagged code

6 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

625patternName = google_api_key severity = high line = 625

High

High Secret

Package contains a high-severity secret pattern.

lib/WABinary/constants.jsView on unpkg · L625

625patternName = google_api_key severity = high line = 625

High

Secret Pattern

Google API key in lib/WABinary/constants.js

lib/WABinary/constants.jsView on unpkg · L625

Findings

6 High2 Medium4 Low

HighInstall Time Lifecycle Scriptspackage.json

HighHigh Secretlib/WABinary/constants.js

HighSemantic Analysis LimitedWAProto/index.js

HighSecret Patternlib/WABinary/constants.js

HighSecret Patternlib/WABinary/constants.d.ts

HighAi Review Evidencelib/Socket/newsletter.js

MediumNetwork

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to @nyzzpedia/baileys@1.0.2.

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

Avoid installing @nyzzpedia/baileys@1.0.2. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-10-14 11:52:51.832Z (UTC).

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

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

More from @nyzzpedia

Other malware packages

Runtime surface

Behavioral surface

Related packages

More from @nyzzpedia

Other malware packages

Source & flagged code