registry / Data exfiltration / payoutsvettingserv-paypal
payoutsvettingserv-paypal
Dependency confusion proof of concept package
This report shows the evidence for payoutsvettingserv-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-aiThis is concrete, unconsented install-time host-data exfiltration, corroborated directly in the manifest and source.
Static reason
One or more suspicious static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
npm preinstall
Impact
Unconsented disclosure of host identity, home-directory path, and DNS configuration.
Mechanism
host fingerprinting and HTTPS exfiltration
Attack narrative
On npm installation, the preinstall hook invokes index.js. The script fingerprints the host and POSTs the JSON data to an external OAST endpoint without user action or package functionality requiring it.
AI rationale
This is concrete, unconsented install-time host-data exfiltration, corroborated directly in the manifest and source.
Evidence
package.jsonindex.jspayoutsvettingserv-paypal-28.0.0.tgz
Network endpoints1
2y1pgajb8aa05uiq8g9ghu99e0ks8twi.oastify.com/hit
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 during installation.
- Nested archive repeats the same preinstall payload.
Evidence against
Behavioral surface
Network
HighEntropyStrings
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 = preferenceslifecycle-paypal@28.0.0
matchedPath = index.js
matchedIdentity = npm:[redacted]:28.0.0
similarity = 1.000
shingleOverlap = 1
summary = package final verdict is malicious
High
Findings
3 High3 Medium4 Low
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationindex.js
HighKnown Malware Source Fingerprint Signatureindex.js
MediumNetwork
MediumShips Compressed Blobpayoutsvettingserv-paypal-28.0.0.tgz
MediumStructural Risk Force Deep Review
LowScripts Present
LowHigh Entropy Strings
LowNested Archive Needs Inspectionpayoutsvettingserv-paypal-28.0.0.tgz
LowNo License
Affected versions and remediation
This report applies to payoutsvettingserv-paypal@28.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing payoutsvettingserv-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.