LWA-2026-11641 confirmed malware

mt-ts-serverless-starter@1.0.1

Malicious code in mt-ts-serverless-starter (npm)

T1059.007 · JavaScriptT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 Channel

Analysis

The package's preinstall hook runs index.js, which collects system information from the installer's machine — hostname, username, home directory, DNS server list, and the full contents of /etc/passwd and /etc/hosts — and POSTs them as JSON to the remote endpoint e4jw9ucdu7sdebgoqqx919p6qxwoke83[.]oastify[.]com:443 (a Burp Collaborator host). The data exfiltration runs automatically on package install.

analyzed by
Leitwacht
first seen
Aug 26, 2026, 01:07 PM
analyzed
Aug 26, 2026, 01:07 PM

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