registry / Malware / @itsmee_aizat.id/baileys2

@itsmee_aizat.id/baileys2

AIZAT Baileys — A WebSockets library for interacting with WhatsApp Web, by Aizat

This report shows the evidence for @itsmee_aizat.id/baileys2@2.0.2. 3 of 4 known versions are blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.

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.

OpenSSF/OSV Malicious Advisory

imported 13d ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-17670 confirms this npm version as malicious.

Advisory

MAL-2026-17670

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in @itsmee_aizat.id/baileys2 (npm)

Details

package.json declares `"libsignal": "github:tenka-san/libsignal-node"` as a runtime dependency. The source is a GitHub user account unrelated to the package publisher (`itsmeeaizat1`) and unrelated to the upstream Baileys project (`WhiskeySockets`), with no commit SHA, tag, or integrity check. `npm install` resolves the current HEAD of that repository and executes any lifecycle scripts it ships, so whoever controls `tenka-san/libsignal-node` controls code installed on the installer's machine. The shipped `lib/Signal/libsignal.js` requires this dependency by name, so the pulled code is loaded at runtime as well. The separate `fetchLatestBaileysVersion` / `fetchLatestWaWebVersion` GET requests to `raw.githubusercontent.com/WhiskeySockets/Baileys` and `web.whatsapp.com/sw.js` are read-only version probes with no installer data in the request body. ## Source: ghsa-malware (f0b8c7ac561d44527d67a7e788e4931e2bd0676ba7439974d4b3ab0f01fa77d3) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

References

OpenSSF/OSV advisory ADVISORY PACKAGE PACKAGE PACKAGE

Independent LPM AI assessment

Clean

Independent AI assessment: clean. LPM AI assessed this version as clean; the assessments disagree.

The install-time hook only enforces the declared Node version requirement. Inspected flagged files show protocol constants, business catalog parsing, and media upload behavior consistent with the package’s WhatsApp library purpose.

Static reason

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

Trigger

Package installation triggers the preinstall version check; media upload is invoked when the library uploads media.

Impact

No malicious impact was identified in the inspected behavior.

Mechanism

The preinstall script exits on Node versions below 20. The media uploader requests upload information from the media connection flow and uses its returned hosts.

AI rationale

Independent scan evidence

public snapshot

AI called this Clean at 91.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

The preinstall hook runs a Node version check that exits if the installed Node version is too old.
The flagged constants file contains WhatsApp protocol token strings, and the flagged business module parses product catalog data.
The media upload function obtains upload details through the media connection refresh flow and uploads media to its returned hosts.
No malicious behavior was identified in the inspected source.

Evidence against

Behavioral surface

Source

ChildProcessCryptoFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

Manifest

GitDependency

scanned 109 file(s), 1.81 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

8 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

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

lib/Utils/validate-connection.jsView file

107pull: false, L108: devicePairingData: { L109: buildHash: appVersionBuf, ... L134: const { details, hmac, accountType } = proto.ADVSignedDeviceIdentityHMAC.decode(deviceIdentityNode.content); L135: let hmacPrefix = Buffer.from([]); L136: if (accountType !== undefined && accountType === proto.ADVEncryptionType.HOSTED) { ... L158: ]); L159: account.deviceSignature = Curve.sign(signedIdentityKey.private, deviceMsg); L160: const identity = createSignalIdentity(lid, accountSignatureKey);

Low

Weak Crypto

Package source references weak cryptographic algorithms.

lib/Utils/validate-connection.jsView on unpkg · L107

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

•path = WAProto/index.js kind = oversized_source_file sizeBytes = 12145764 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 = @lekzo/baileys@0.0.6 matchedPath = lib/Utils/messages-media.js matchedIdentity = npm:QGxla3pvL2JhaWxleXM:0.0.6 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

8 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

5 High5 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

HighSecret Patternlib/WABinary/constants.js

MediumNetwork

MediumShips Build HelperWAProto/GenerateStatics.sh

MediumOversized Source FileWAProto/index.js

MediumStructural Risk Force Deep Review

MediumGit Dependency

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptolib/Utils/validate-connection.js

LowFilesystem

Affected versions and remediation

This report applies to @itsmee_aizat.id/baileys2@2.0.2.

The versions list below shows the verdict for each recorded version.

Avoid installing @itsmee_aizat.id/baileys2@2.0.2. 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: 2026-10-09 17:45:06.086Z (UTC).

Source advisory published: 2026-10-08 13:21:49.000Z (UTC).

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

Versions

4 known versions

0.0.1-securitylatestUnknown—AllowUnder ReviewOct 8, 2026, 1:22 PM 2.0.2shownMaliciousMalwareBlockPublishedOct 8, 2026, 5:26 AM 2.0.1MaliciousMalwareBlockPublishedOct 8, 2026, 5:23 AM 2.0.0MaliciousMalwareBlockPublished

OpenSSF/OSV Malicious Advisory

Independent LPM AI assessment

Independent scan evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other malware packages

Behavioral surface

Related packages

Other malware packages

Source & flagged code