registry / Data exfiltration / preferenceslifecycle-paypal
preferenceslifecycle-paypal
Dependency confusion proof of concept package
This report shows the evidence for preferenceslifecycle-paypal@28.0.0. 2 of 2 known versions are blocked or flagged. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiDirect source inspection confirms unconsented install-time host-data exfiltration to an external endpoint. This is concrete malicious behavior, not a scanner-only signal.
Static reason
One or more suspicious static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
npm install triggers the preinstall lifecycle hook.
Impact
Exposes local host identity, home-directory path, and DNS configuration without user consent.
Mechanism
install-time host fingerprinting and HTTPS exfiltration
Attack narrative
On installation, package.json invokes index.js through preinstall. The script gathers host metadata and DNS resolver configuration, serializes it, and sends it by HTTPS POST to an external oastify.com host. The bundled archive contains the same manifest and script.
AI rationale
Direct source inspection confirms unconsented install-time host-data exfiltration to an external endpoint. This is concrete malicious behavior, not a scanner-only signal.
Evidence
package.jsonindex.jspreferenceslifecycle-paypal-28.0.0.tgz
Network endpoints1
ucahu2x3m2osjmwim8n8vmn1ssykmnac.oastify.com
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- package.json runs `node index.js` in preinstall.
- index.js collects hostname, platform, architecture, home directory, and DNS servers.
- index.js POSTs collected host data to oastify.com.
Evidence against
- No credential-file reads, shell execution, or payload loading found.
Behavioral surface
Network
NoLicense
Source & flagged code
5 flagged · loading sourcepackage.jsonView file
•scripts.preinstall = node index.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgindex.jsView file
1const https = require("https");
L2: const os = require("os");
L3: const dns = require("dns");
L4:
L5: const data = JSON.stringify({
L6: hostname: os.hostname(),
L7: platform: os.platform(),
...
L26:
L27: req.write(data);
L28: req.end();
High
Host Fingerprint Exfiltration
Source collects local host identity data and sends it to an external endpoint.
index.jsView on unpkg · L1•matchType = malicious_source_fingerprint_signature
signature = 55ef5c661ef1e2d6
signatureType = suspicious_hashes
sourceLabel = final_verdict:malicious
matchedPackage = nemo-jaws@28.0.0
matchedPath = index.js
matchedIdentity = npm:bmVtby1qYXdz:28.0.0
similarity = 1.000
shingleOverlap = 1
summary = package final verdict is malicious
High
Findings
3 High2 Medium3 Low
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationindex.js
HighKnown Malware Source Fingerprint Signatureindex.js
MediumNetwork
MediumShips Compressed Blobpreferenceslifecycle-paypal-28.0.0.tgz
LowScripts Present
LowNested Archive Needs Inspectionpreferenceslifecycle-paypal-28.0.0.tgz
LowNo License
Affected versions and remediation
This report applies to preferenceslifecycle-paypal@28.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing preferenceslifecycle-paypal@28.0.0. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.