OpenSSF/OSV advisory MAL-2026-12816 confirms this npm version as malicious. package.json declares a preinstall hook that runs index.js during `npm install`. The script reads /etc/passwd, /etc/hosts, os.hostname(), os.userInfo().username, the user's home directory, dns.getServers(), and package metadata, then POSTs the collected data via HTTPS to the hardcoded subdomain 7ckdbwo9f8dtrg8y36sbe4e8lzrqfg35.oastify.com (Burp Collaborator OAST callback)...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in wolverinechat (npm)
Details
package.json declares a preinstall hook that runs index.js during `npm install`. The script reads /etc/passwd, /etc/hosts, os.hostname(), os.userInfo().username, the user's home directory, dns.getServers(), and package metadata, then POSTs the collected data via HTTPS to the hardcoded subdomain 7ckdbwo9f8dtrg8y36sbe4e8lzrqfg35.oastify.com (Burp Collaborator OAST callback). The exfiltration fires automatically at install time without user interaction.
Decision reason
OpenSSF Malicious Packages via OSV confirms wolverinechat@1.0.1 as malicious (MAL-2026-12816): Malicious code in wolverinechat (npm)