@zmtcdn/ui@9999.0.7
Security research PoC
AI Security Review
scanned 7d ago · by lpm-firewall-aiThe manifest activates a postinstall hook that sends identifying host and user data to a fixed external endpoint. This is automatic installation-time disclosure without installer consent, so the package should be blocked.
Static reason
High-risk behavior combination matched malicious policy.; source fingerprint signature matched known malicious package; routed for review
Trigger
Installing the package runs its postinstall hook.
Impact
Installation discloses identifying information about the machine and user to the external endpoint.
Mechanism
The hook gathers host, user, working-directory, and environment-key metadata, then posts it over HTTPS without a consent check.
Attack narrative
Installing the package automatically runs postinstall.js, which collects host and user identifiers and sends them to a fixed external endpoint. The source shows no consent check or functional use for this disclosure.
AI rationale
The manifest activates a postinstall hook that sends identifying host and user data to a fixed external endpoint. This is automatic installation-time disclosure without installer consent, so the package should be blocked.
Evidence
package.jsonpostinstall.js
Network endpoints1
www.hinny.shop/api
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- The package runs postinstall.js automatically during installation.
- The hook collects the machine hostname, platform, username, working directory, and environment variable names.
- The hook sends the collected data in an HTTPS POST to a fixed external endpoint without a consent check.
Evidence against
Behavioral surface
EnvironmentVarsNetwork
UrlStrings
NoLicense
Source & flagged code
6 flaggedpackage.jsonView file
•scripts.postinstall = node postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg7"postinstall": "node postinstall.js"
}
}
High
Suspicious Lifecycle Evidence
The package runs postinstall.js automatically during installation.
package.jsonView on unpkg · L7•scripts.postinstall = node postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgpostinstall.jsView file
Findings
1 Critical4 High4 Medium3 Low
CriticalHardcoded Runtime Data Exfiltrationpostinstall.js
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationpostinstall.js
HighKnown Malware Source Fingerprint Signaturepostinstall.js
HighSuspicious Lifecycle Evidencepackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowUrl Strings
LowNo License
Affected versions and remediation
This report applies to @zmtcdn/ui@9999.0.7.
See all versions of @zmtcdn/ui for other recorded verdicts.
- Avoid installing @zmtcdn/ui@9999.0.7. 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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