registry / Malware / @randev404/baileys / 1.0.3

@randev404/baileys@1.0.3

Baileys modified by Ran

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 16h ago · by lpm-firewall-ai

The exported runtime API performs unrequested account changes by following package-selected newsletters whenever the connection opens. This concrete behavior supports blocking regardless of the install-time version check.

Static reason

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

Trigger

The user's WhatsApp connection opens after creating the exported socket.

Impact

The user's account is subscribed to channels they did not select.

Mechanism

A default-enabled helper sends a follow action for each package-selected newsletter ID.

Attack narrative

After the connection opens, the exported socket automatically follows three package-selected newsletters. The behavior is enabled by default, and the follow method sends the service action for each fixed ID. This changes the user's account without a caller-selected target.

AI rationale

Evidence

lib/custom.jslib/Socket/index.jslib/Socket/newsletter.jslib/index.js

Decision evidence

public snapshot

AI called this Malicious at 98.0% confidence as Malware with low false-positive risk.

Evidence for block

The package enables automatic following by default and supplies three fixed newsletter IDs.
When the connection opens, the socket calls the automatic follow helper once.
The helper follows each configured ID without requiring a caller-selected target.
The follow method sends the service newsletter-follow action.
The package exports this socket constructor as its default API.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 101 file(s), 1.74 MB of source, external domains: call.whatsapp.com, raw.githubusercontent.com, wa.me, web.whatsapp.com, www.whatsapp.com

Oversized source lightweight scan

WAProto/index.js

Source & flagged code

10 flagged

package.jsonView file

Lines 18-58json

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

19 "files": [

20 "lib/**/*",

21 "WAProto/**/*",

22 "engine-requirements.js"

23 ],

24 "scripts": {

25 "build:all": "npm run build && npm run build:docs",

26 "build:docs": "typedoc",

27 "build": "tsc -P tsconfig.build.json && tsc-esm-fix --tsconfig=tsconfig.build.json --ext=.js",

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

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

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

31 "example": "tsx ./Example/example.ts",

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

33 "format": "prettier --write \"src/**/*.{ts,js,json,md}\"",

34 "lint": "tsc && eslint src --ext .js,.ts",

35 "lint:fix": "npm run format && npm run lint -- --fix",

36 "prepack": "npm run build",

37 "prepare": "npm run build",

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L38

39 "release": "release-it",

40 "test": "node --experimental-vm-modules ./node_modules/.bin/jest --testMatch '**/*.test.ts'",

41 "test:e2e": "NODE_TLS_REJECT_UNAUTHORIZED=0 node --experimental-vm-modules ./node_modules/.bin/jest --runInBand --forceExit --testMatch '**/*.test-e2e.ts'",

42 "update:version": "tsx ./scripts/update-version.ts"

43 },

44 "dependencies": {

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

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

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

48 "libsignal": "^6.0.0",

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

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

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

52 "pino": "^9.6",

53 "protobufjs": "^7.5.6",

54 "whatsapp-rust-bridge": "0.5.4",

55 "ws": "^8.13.0"

56 },

57 "devDependencies": {

58 "@eslint/eslintrc": "^3.3.1",

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/Utils/validate-connection.jsView file

Lines 94-134javascript

94 supportBizHostedMsg: true,

95 supportRecentSyncChunkMessageCountTuning: true,

96 supportHostedGroupMsg: true,

97 supportFbidBotChatHistory: true,

WAProto/GenerateStatics.shView file

•path = WAProto/GenerateStatics.sh kind = build_helper sizeBytes = 302 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

WAProto/GenerateStatics.shView on unpkg

WAProto/index.jsView file

•stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 4

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 = 4435208 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 = normalized_sha256 matchedPackage = @randev404/baileys@1.0.2 matchedPath = lib/Utils/messages-media.js matchedIdentity = npm:QHJhbmRldjQwNC9iYWlsZXlz:1.0.2 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

•matchType = malicious_source_fingerprint_signature signature = 6f7bb1c5f1cc0141 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @randev404/baileys@1.0.2 matchedPath = lib/Utils/messages-media.js matchedIdentity = npm:QHJhbmRldjQwNC9iYWlsZXlz:1.0.2 similarity = 1.000 shingleOverlap = 14 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

lib/Utils/messages-media.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:

Source & flagged code

10 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

600patternName = google_api_key severity = high line = 600

High

Secret Pattern

Google API key in lib/WABinary/constants.js

lib/WABinary/constants.jsView on unpkg · L600

Findings

7 High5 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighHigh Secretlib/WABinary/constants.js

HighSemantic Analysis LimitedWAProto/index.js

HighKnown Malware Source Similaritylib/Utils/messages-media.js

HighKnown Malware Source Fingerprint Signaturelib/Utils/messages-media.js

HighSecret Patternlib/WABinary/constants.js

HighSecret Patternlib/WABinary/constants.d.ts

MediumNetwork

MediumEnvironment Vars

MediumShips Build HelperWAProto/GenerateStatics.sh

MediumOversized Source FileWAProto/index.js

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

Affected versions and remediation

This report applies to @randev404/baileys@1.0.3.

See all versions of @randev404/baileys for other recorded verdicts.

Avoid installing @randev404/baileys@1.0.3. 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: 2026-10-22 11:16:02.609Z (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

Other malware packages

Behavioral surface

Source & flagged code

Related packages

Other malware packages