@denzz221/baileys@8.1.5
WhatsApp API Modification By By DenixXvynix
AI Security Review
scanned 1h ago · by lpm-firewall-aiThe package automatically performs a publisher-selected WhatsApp account action when its messages socket is created. This is malicious because the user did not request the follow.
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
Creating the messages socket; the action is scheduled for 90 seconds later.
Impact
Changes the user's account by following a channel they did not choose.
Mechanism
A timer sends a WhatsApp newsletter FOLLOW query for a hard-coded newsletter ID.
Attack narrative
When the messages socket is created, it initializes the newsletter socket. That setup schedules a timer which, after 90 seconds, sends a FOLLOW query for newsletter 120363400780200098@newsletter. This uses the connected WhatsApp account to follow a publisher-chosen channel without the user's request.
AI rationale
The package automatically performs a publisher-selected WhatsApp account action when its messages socket is created. This is malicious because the user did not request the follow.
Evidence
lib/Socket/newsletter.jslib/Socket/messages-send.js
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- Creating the messages socket creates the newsletter socket, which schedules an action after 90 seconds.
- The timer sends a FOLLOW query for the hard-coded newsletter 120363400780200098@newsletter without a user request.
Evidence against
- The preinstall script only checks the Node.js major version and exits on versions below 20.
- The flagged media code handles media downloads and uploads through supplied URLs and WhatsApp upload hosts.
Behavioral surface
ChildProcessCryptoFilesystemNetworkShellWebSocket
HighEntropyStringsMinifiedUrlStrings
GitDependency
Oversized source lightweight scan
Source & flagged code
5 flaggedpackage.jsonView file
•scripts.preinstall = node ./engine-requirements.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgWAProto/index.jsView file
•path = WAProto/index.js
kind = oversized_source_file
sizeBytes = 8472622
magicHex = [redacted]
Medium
Oversized Source File
Package contains source files above the normal full-analysis size ceiling.
WAProto/index.jsView on unpkglib/Utils/messages-media.jsView file
•matchType = normalized_sha256
matchedPackage = @denzz221/baileys@8.0.5
matchedPath = lib/Utils/messages-media.js
matchedIdentity = npm:QGRlbnp6MjIxL2JhaWxleXM:8.0.5
similarity = 1.000
summary = normalized source hash matched finalized malicious source
Findings
4 High4 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similaritylib/Utils/messages-media.js
HighKnown Malware Source Similaritylib/Utils/messages.js
HighKnown Malware Source Fingerprint Signaturelib/Utils/messages-media.js
MediumNetwork
MediumOversized Source FileWAProto/index.js
MediumStructural Risk Force Deep Review
MediumGit Dependency
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @denzz221/baileys@8.1.5.
See all versions of @denzz221/baileys for other recorded verdicts.
- Avoid installing @denzz221/baileys@8.1.5. 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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