@itsmee_aizat.id/baileys2@2.0.2
AIZAT Baileys — A WebSockets library for interacting with WhatsApp Web, by Aizat
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/OSVOpenSSF/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.
Independent LPM AI assessment
CleanIndependent 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
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.
Independent scan evidence
public snapshotAI 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
ChildProcessCryptoFilesystemNetworkShellWebSocket
HighEntropyStringsUrlStrings
GitDependency
Oversized source lightweight scan
WAProto/index.js
Source & flagged code
8 flagged · loading sourcepackage.jsonView file
•scripts.preinstall = node ./engine-requirements.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkglib/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 · L600600patternName = google_api_key
severity = high
line = 600
High
Secret Pattern
Google API key in lib/WABinary/constants.js
lib/WABinary/constants.jsView on unpkg · L600Findings
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.
See all versions of @itsmee_aizat.id/baileys2 for other recorded verdicts.
- 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.