index.js (the package main) executes at require-time and performs credential and host exfiltration. It iterates process.env and filters keys matching a broad credential regex (KEY, SECRET, TOKEN, PASS, PRIV, SIGN, AWS, CIRCLE, GITHUB, DB, RDS, SENTRY, PYPI, NPM, DOCKER, KUBE, TUNNEL, CF_, etc.), collects hostname and username, and runs whoami && id && cat /proc/1/cgroup via child_process.execSync to fingerprint the user/container/CI runner. The collected data is POSTed to https://jorijo.xyz:8443/t with TLS certificate verification disabled (rejectUnauthorized:false). The version number (99.0.0) and scoped name are consistent with a typosquat/impersonation of an @hibachi-xyz SDK.

The OpenSSF Package Analysis project identified '@hibachi-xyz/sdk' @ 99.0.0 (npm) as malicious.

It is considered malicious because:

• The package executes one or more commands associated with malicious behavior.