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Malicious package

tol8tnpm

tol8t is a confirmed malicious npm package (MAL-2026-16218) that opens a backdoor for remote access (malicious version 14.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in tol8t (npm)

MAL-2026-16218
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall tol8t

What this malware does

package.json declares preinstall and postinstall lifecycle hooks that use wget to POST installer host identifiers to a hardcoded Discord webhook at https://discord.com/api/webhooks/1413937656697720862/. The preinstall hook sends the installer's current working directory ($(pwd)) and the postinstall hook sends the machine hostname ($(hostname)). Both fire automatically during npm install with no user interaction. The package ships no other functionality; its sole behavior is host reconnaissance beaconing to an attacker-controlled Discord webhook.

The OpenSSF Package Analysis project identified 'tol8t' @ 14.0.0 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

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

Malicious versions

1 flagged
14.0.0

Indicators of compromise (SHA-256)

c33f4cd3c64d0ca0eb65dc5947fce3700c94ec8bea6083e63da1e6ba31321e27
2f9850f64422a733207e07792098b0e3c72d43311f73a44bd07ae0c2dd4429eb

Detection & response playbook

Backdoor / remote access
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for tol8t (version 14.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging tol8t across your stack and pipelines.

  2. If you installed it — respond

    tol8t establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

  3. Did it already run?

    If tol8t 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 tol8t 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. tol8t on npm has been identified as a malicious package (version 14.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020084

References

Credits

  • Amazon Inspector · finder
  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks tol8t-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Explore

tol8t (npm) malicious package — MAL-2026-16218 | O3 Security