LWA-2026-5944 MAL-2026-6349 ↗ confirmed malware

bug-monorepo@3.1.94

Malicious code in bug-monorepo (npm)

T1059.007 · JavaScriptT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 ChannelT1071.001 · Web Protocols

Analysis

bug-monorepo@3.1.94 runs a preinstall hook that executes index.js, which collects system information (hostname, username, home directory, DNS servers, /etc/passwd, /etc/hosts, package.json) from the installer's machine and exfiltrates it via HTTPS POST to cp5uzinglyy3ifb8gvvgvq5qvh19p0dp[.]oastify[.]com (a Burp Collaborator endpoint). The data is sent as a JSON payload over port 443.

analyzed by
Leitwacht
first seen
Jun 23, 2026, 08:30 PM
analyzed
Jun 23, 2026, 08:31 PM

Related advisories

browse all confirmed advisories →

Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.