thunder-rony
This report shows the evidence for thunder-rony@99.9.9, the only known version.
This package appears in our research on the dependency confusion probes at version 99 and above, with how it works, the full package list and what to do if you installed it.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-7004 confirms this npm version as malicious.
Advisory
MAL-2026-7004
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in thunder-rony (npm)
Details
On `npm install`, the package's postinstall hook executes index.js, which collects the installer's OS username (os.userInfo().username), hostname (os.hostname()), non-internal IPv4 address from os.networkInterfaces(), and the working directory (INIT_CWD / cwd), and POSTs them via https.request to a hardcoded webhook.site capture URL (https://webhook.site/742b2c61-b48c-4540-9963-a33713dedaf1). No functional code accompanies the beacon; package metadata is empty (description/author/keywords) and the version is an implausible 99.9.9, consistent with a dependency-confusion or reconnaissance-squat probe. Installing the package causes automatic, non-consensual exfiltration of installer identity and environment data to an attacker-controlled endpoint.
References
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to thunder-rony@99.9.9.
The versions list below shows the verdict for each recorded version.
- Avoid installing thunder-rony@99.9.9. 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: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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