@grabcad/user-license@1.1.0
Compatibility shim.
AI Security Review
scanned 2h ago · by lpm-firewall-aiThe postinstall hook and import path both activate an automatic beacon that transmits host and project identifiers to a fixed external recipient. This is unconsented installation tracking and supports blocking publication.
Static reason
One or more suspicious static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
Package installation or importing index.js.
Impact
The recipient can learn identifying information about the machine and the project location.
Mechanism
The beacon constructs a payload containing the hostname and project paths, then posts it to a hardcoded endpoint without an affirmative consent gate.
Attack narrative
Installation invokes the beacon, and importing the package invokes it again. The beacon sends the machine hostname and project paths to a hardcoded external endpoint without an affirmative consent gate.
AI rationale
The postinstall hook and import path both activate an automatic beacon that transmits host and project identifiers to a fixed external recipient. This is unconsented installation tracking and supports blocking publication.
Evidence
package.jsonindex.jsbeacon.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 postinstall hook automatically runs the beacon.
- Importing the package also fires the beacon.
- The beacon sends host and project path metadata to a fixed external endpoint in a POST request.
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"
High
Suspicious Lifecycle Evidence
The postinstall hook automatically runs the beacon.
package.jsonView on unpkg · L7beacon.cjsView file
•matchType = malicious_source_fingerprint_signature
signature = a5258e167635ba3a
signatureType = suspicious_hashes
sourceLabel = final_verdict:malicious
matchedPackage = @blueskydataplatform/shared-ui@2.0.0
matchedPath = beacon.cjs
matchedIdentity = npm:[redacted]:2.0.0
similarity = 1.000
shingleOverlap = 2
summary = package final verdict is malicious
High
Known Malware Source Fingerprint Signature
Source fingerprint signature matches a known malicious package signature; route for source-aware review.
Findings
8 High1 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Fingerprint Signaturebeacon.cjs
HighSuspicious Lifecycle Evidencepackage.json
HighAi Review Evidenceindex.js
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/user-license@1.1.0.
See all versions of @grabcad/user-license for other recorded verdicts.
- Avoid installing @grabcad/user-license@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.