MAL-2026-4534

Dashboard / Malicious Package / MAL-2026-4534

MAL-2026-4534

Summary: Malicious code in color-style-utils (npm)

Details: Source: amazon-inspector (47cf4aaa2cd7a20b222a1a4150a7b9e1f79d9b0a09c8fe4a5689e55bad9bc087) On `npm install`, all three lifecycle hooks (preinstall, install, postinstall) execute postinstall.js, which harvests installer secrets and exfiltrates them to an attacker-controlled localhost.run SSH tunnel at edcf8b03c84634.lhr.life. The script reads ~/.ssh/*, ~/.aws/credentials and config, ~/.config/gcloud, ~/.azure, ~/.npmrc, ~/.kube/config, ~/.docker/config.json, browser profile directories, crypto wallets, VPN configs, shell histories, and dotfiles; dumps process.env; and regex-matches GitHub, AWS, Google, Stripe, Slack, and Discord tokens. It also fingerprints the host via api.ipify.org and ipapi.co (public IP, country, city, ISP, lat/lon, hostname, username, uid/gid, local IPs) and POSTs the full bundle to https://edcf8b03c84634.lhr.life/collect via https.request. The package additionally declares a self-referential dependency on itself (color-style-utils: ^1.0.4) and ships an undeclared ~35 KB sibling file `postinstall2.jsµ` with a non-ASCII suffix that is not referenced by any documented script — both consistent with name-squat/decoy smuggling patterns.

References: https://www.npmjs.com/package/color-style-utils/v/1.0.9, https://www.npmjs.com/package/color-style-utils/v/1.0.8, https://www.npmjs.com/package/color-style-utils/v/1.0.3, https://www.npmjs.com/package/color-style-utils/v/1.0.4, https://www.npmjs.com/package/color-style-utils/v/1.0.5, https://www.npmjs.com/package/color-style-utils/v/1.0.7, https://www.ox.security/blog/new-actors-deploy-shai-hulud-clones-teampcp-copycats-are-here, https://github.com/advisories/GHSA-2hm6-8j47-2qg7