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Malicious package

@kalipto/localnpm

@kalipto/local is a confirmed malicious npm package (MAL-2026-5922) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1, 1.0.2…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @kalipto/local (npm)

MAL-2026-5922
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @kalipto/local

What this malware does

The package is a purpose-built remote-control agent. On startup (when the bin is invoked with --token, e.g. npx @kalipto/local --token...), index.js opens a plaintext WebSocket connection to ws://api.kaliptosal.dev:3001 and sends a register message containing the host's process.env.HOSTNAME, process.platform, and the supplied token (index.js:27-34). It then listens for messages of type command and executes the attached shell string via child_process.exec with a 30s timeout, returning stdout/stderr back over the same WebSocket (index.js:43-58). The operator of api.kaliptosal.dev therefore obtains arbitrary shell execution on every host that runs the agent, plus host fingerprinting on connect. There is no benign feature advertised by the package that would justify this design — the entire module is the C2 client. Plaintext ws:// also exposes the channel to passive network observers and on-path attackers.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

4 flagged
1.0.01.0.11.0.21.0.3

Indicators of compromise (SHA-256)

7bc21bad10e53c1a470a85fbb0b9d7ca73f5acf6bfe5e0d1096f093636a65c1f
e564c571c59210776c36ccf981ad7f94cb6975be96ecca9b780b96d7e6896793
e79377759686435b61cf07c8f77643c83a96cbe9344669d9020e877148a952b9
f887073dda96085d83a06048f0010c3e6bef58c035579649a0f1ae6cad66828f
731bb5e0dac946aee13fa0bff694c292261d124d0c00df4e0e26e0803b73b44b

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 @kalipto/local (4 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @kalipto/local across your stack and pipelines.

  2. If you installed it — respond

    @kalipto/local 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 @kalipto/local 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 @kalipto/local 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. @kalipto/local on npm has been identified as a malicious package (versions 1.0.0, 1.0.1, 1.0.2, 1.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-006834IN-MAL-2026-006836IN-MAL-2026-006833IN-MAL-2026-006835GHSA-653g-2cfx-6gpc

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @kalipto/local-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

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