@zmtcdn/ui@9999.0.0
Security research PoC
AI Security Review
scanned 8d ago · by lpm-firewall-aiThe package automatically sends host, user, and project-context identifiers to a fixed external endpoint during installation. This is an unconsented installation beacon and supports blocking publication.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Package installation runs the postinstall hook.
Impact
The recipient receives identifying information about the machine and installation context.
Mechanism
The hook gathers host, user, working-directory, and environment-variable-name data, then sends it in an HTTPS POST request.
Attack narrative
The automatic postinstall hook collects host and user identifying data and sends it to a fixed external endpoint. This installation-time disclosure has no consent guard in the inspected source.
AI rationale
The package automatically sends host, user, and project-context identifiers to a fixed external endpoint during installation. This is an unconsented installation beacon and supports blocking publication.
Evidence
package.jsonpostinstall.js
Network endpoints1
www.hinny.shop/api
Decision evidence
public snapshotAI called this Malicious at 96.0% confidence as Malware with low false-positive risk.
Evidence for block
- The manifest runs a script automatically after installation.
- The script collects hostname, platform, username, working directory, and environment variable names.
- The script selects www.hinny.shop as its destination and prepares a POST request.
- The collected data is written to the request and sent.
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
Ai Review Evidence
The manifest runs a script automatically after 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
HighAi Review Evidencepackage.json
HighAi Review Evidencepostinstall.js
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@9999.0.0.
See all versions of @zmtcdn/ui for other recorded verdicts.
- Avoid installing @zmtcdn/ui@9999.0.0. 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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