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Malicious package

tailwind-animation-foundernpm

tailwind-animation-founder is a confirmed malicious npm package (MAL-2026-12218) that steals credentials and exfiltrates sensitive data (malicious version 2.5.7). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in tailwind-animation-founder (npm)

MAL-2026-12218
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall tailwind-animation-founder

What this malware does

The package publishes as 'tailwind-animation-founder' while its README, homepage, and npm badges point to a differently-named upstream ('tailwindcss-animationfound'), indicating a typosquat identity. src/index.js appends an obfuscated IIFE after a legitimate-looking Tailwind plugin export. The trailing block pulls http, https, and child_process.spawn into globals, uses a length-based string-shuffle routine to reconstruct the identifier 'constructor', instantiates a Function from a shuffle-decoded source blob, and immediately invokes it. The executable payload is only readable after runtime decoding, so the plugin performs opaque code execution the moment a build tool runs require('tailwind-animation-founder'). The combination of obfuscation, networking primitives (http/https), process-spawn capability, and Function-constructor evaluation on the main entry is the shape of a dropper/stealer, not a Tailwind utility plugin.

Malicious versions

1 flagged
2.5.7

Indicators of compromise (SHA-256)

212392bc085368a2f4227f1cba627c6dd4629855bb5f3aa3529931d35f13ed21

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for tailwind-animation-founder (version 2.5.7). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging tailwind-animation-founder across your stack and pipelines.

  2. If you installed it — respond

    tailwind-animation-founder is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If tailwind-animation-founder was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks tailwind-animation-founder before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. tailwind-animation-founder on npm has been identified as a malicious package (version 2.5.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014547

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks tailwind-animation-founder-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

tailwind-animation-founder (npm) malicious package — MAL-2026-12218 | O3 Security