@zyrennofficiall/baileys@5.2.0
A WebSockets library for interacting with WhatsApp Web.
AI Security Review
scanned 2h ago · by lpm-firewall-aiThe package performs an account action toward a publisher-selected WhatsApp target by default when the connection opens. The opt-out does not make that action user-requested, so this is malicious.
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
A caller creates the socket with makeWASocket and the WhatsApp connection opens; the default can be disabled with autoFollow: false.
Impact
The user's WhatsApp account performs an unrequested follow action toward a target selected by the package publisher.
Mechanism
A connection event handler calls newsletterFollow with the hard-coded target 120363430929084263@newsletter.
Attack narrative
When the socket connects, the package follows its hard-coded WhatsApp newsletter using the user's account. This action is enabled by default and can be avoided only by explicitly setting autoFollow to false.
AI rationale
The package performs an account action toward a publisher-selected WhatsApp target by default when the connection opens. The opt-out does not make that action user-requested, so this is malicious.
Evidence
lib/Socket/index.jslib/Defaults/index.jsengine-requirements.js
Network endpoints1
web.whatsapp.com
Decision evidence
public snapshotAI called this Malicious at 98.0% confidence as Malware with low false-positive risk.
Evidence for block
- makeWASocket defaults autoFollow to true and, when the WhatsApp connection opens, follows a hard-coded newsletter chosen by the package publisher.
- The follow action runs automatically unless callers explicitly set autoFollow: false.
- The package's preinstall script only checks the Node.js major version and exits on versions below 20.
Evidence against
- The package describes itself as a WebSockets library for interacting with WhatsApp Web.
- The auto-follow behavior has an opt-out setting, but it is enabled by default.
Behavioral surface
ChildProcessCryptoFilesystemNetworkShellWebSocket
HighEntropyStringsUrlStrings
Oversized source lightweight scan
Source & flagged code
9 flaggedpackage.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
6 High4 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 Fingerprint Signaturelib/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
LowNon Install Lifecycle Scripts
LowScripts Present
LowWeak Cryptolib/Utils/validate-connection.js
Affected versions and remediation
This report applies to @zyrennofficiall/baileys@5.2.0.
See all versions of @zyrennofficiall/baileys for other recorded verdicts.
- Avoid installing @zyrennofficiall/baileys@5.2.0. 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: .
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