registry / @vanzxy/baileys / 1.6.6

@vanzxy/baileys@1.6.6

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 2mo ago · by lpm-firewall-ai

Source inspection shows package-aligned WhatsApp media, networking, and optional VoIP functionality rather than a concrete attack chain. The lifecycle scripts are transparent and non-mutating.

Static reason

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

Trigger

Package installation runs the declared lifecycle scripts; VoIP and network helpers require explicit runtime use.

Impact

No unconsented file mutation, credential collection, persistence, or exfiltration was found.

Mechanism

Local compatibility check, banner output, and user-invoked WhatsApp client functionality.

AI rationale

Source inspection shows package-aligned WhatsApp media, networking, and optional VoIP functionality rather than a concrete attack chain. The lifecycle scripts are transparent and non-mutating.

Evidence

package.jsonengine-requirements.jspostinstall-banner.jslib/Utils/generics.jslib/Utils/messages-media.jslib/VoIP/wasm-engine.jslib/VoIP/worker-bootstrap.js

Decision evidence

public snapshot

AI called this Clean at 95.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

Install hooks only check the local Node version and print a banner.
The optional VoIP runtime evaluates bundled local WASM support code when the VoIP client is initialized.
Version helpers make explicit runtime requests to the package repository and WhatsApp.

Evidence against

No install hook writes files, invokes a shell command, or contacts a network endpoint.
No self-dependency or nested lifecycle dependency is declared.
No credential harvesting, AI-agent configuration mutation, persistence, or destructive project mutation was found.
The flagged child-process use is constrained ffmpeg media processing with argument arrays.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNativeBindingsNetworkShellWebSocket

Supply chain

HighEntropyStrings

Source & flagged code

12 flagged

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 matchedText = 'AIzaSyD...Lk',

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.jsView on unpkg

600patternName = google_api_key severity = high line = 600 matchedText = 'AIzaSyD...Lk',

High

Secret Pattern

Google API key in lib/WABinary/constants.js

lib/WABinary/constants.jsView on unpkg · L600

lib/VoIP/worker-bootstrap.jsView file

346const code = fs.readFileSync(url, "utf8"); L347: eval(code); L348: }

Low

Eval

Package source references a known benign dynamic code generation pattern.

lib/VoIP/worker-bootstrap.jsView on unpkg · L346

lib/Utils/templates.jsView file

86} L87: import(json, overwrite = false) { L88: const templates = JSON.parse(json);

Medium

Dynamic Require

Package source references dynamic require/import behavior.

lib/Utils/templates.jsView on unpkg · L86

lib/VoIP/wasm-engine.jsView file

17const __filename = fileURLToPath(import.meta.url); L18: const __dirname = path.dirname(__filename); L19: const CALL_WASM_AB_PROPS_JSON = process.env.CALL_WASM_AB_PROPS_JSON ?? ""; L20: const PTHREAD_POOL_SIZE = 20; ... L25: try { L26: const parsed = JSON.parse(raw); L27: if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) ... L51: }; L52: const filterWorkerStderr = (chunk) => { L53: const line = chunk.toString().trim(); L54: if (line && !line.startsWith("voip:") && !line.startsWith("still waiting")) { L55: process.stderr.write(chunk);

Medium

Unsafe Vm Context

Package source executes code through a VM context API.

lib/VoIP/wasm-engine.jsView on unpkg · L17

lib/Utils/crypto.jsView file

1import { createCipheriv, createDecipheriv, createHash, createHmac, randomBytes } from 'crypto'; L2: import * as curve from 'libsignal/src/curve.js'; ... L42: return { L43: private: Buffer.from(privKey), L44: // remove version byte

Low

Weak Crypto

Package source references weak cryptographic algorithms.

lib/Utils/crypto.jsView on unpkg · L1

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

•path = WAProto/index.js kind = oversized_source_file sizeBytes = 6531957 magicHex = [redacted]

Medium

Oversized Source File

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

WAProto/index.jsView on unpkg

lib/Utils/business.jsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 3

High

Semantic Analysis Limited

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

lib/Utils/business.jsView on unpkg

lib/Utils/messages-media.jsView file

•matchType = normalized_sha256 matchedPackage = @vanzxy/baileys@1.4.6 matchedPath = lib/Utils/messages-media.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/Utils/messages-media.jsView on unpkg

Source & flagged code

12 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 matchedText = 'AIzaSyD...Lk',

High

High Secret

Package contains a high-severity secret pattern.

lib/WABinary/constants.jsView on unpkg · L600

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 High7 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighHigh Secretlib/WABinary/constants.js

HighSemantic Analysis Limitedlib/Utils/business.js

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

HighKnown Malware Source Similaritylib/WABinary/constants.js

HighSecret Patternlib/WABinary/constants.js

MediumDynamic Requirelib/Utils/templates.js

MediumUnsafe Vm Contextlib/VoIP/wasm-engine.js

MediumNetwork

MediumEnvironment Vars

MediumShips Wasm Modulelib/assets/wasm/whatsapp.wasm

MediumOversized Source FileWAProto/index.js

Medium

Affected versions and remediation

This report applies to @vanzxy/baileys@1.6.6.

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

Review the evidence and your use of @vanzxy/baileys@1.6.6 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: 2026-08-30 01:20:40.363Z (UTC).

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