MAL-2026-4230

    Dashboard / Malicious Package / MAL-2026-4230

    MAL-2026-4230

    Published: 21 May 2026Last Modified: 26 May 2026

    Summary: Malicious code in cryptoco-auth (npm)

    Details: Source: amazon-inspector (46f83b7a7a5e28fe4fadbd72b0d38ff322210501ef54807160a13b7d797e6c68) On require(), index.js opens TCP connections to the cloud link-local metadata address 169.254.169.254 across ports 80, 443, 8080, 3000, 5432, and 6379, writing an HTTP probe on each successful connection. The package advertises itself as a crypto authentication library but contains no authentication code — its only runtime behavior is reconnaissance against the AWS/cloud Instance Metadata Service, a well-known precursor to IMDS credential theft on cloud VMs. The package manifest is minimal (no description, author, or repository), and the IP literal is annotated with an Indonesian-language comment explicitly identifying it as the AWS Metadata IP. The lure-style name combined with reconnaissance behavior and absent legitimate functionality is consistent with a malicious package targeting cloud-hosted installers. Source: ossf-package-analysis (224727792d7795e1dff1348ad30dad0de77689bf284ac571b7aee280b49b5774) The OpenSSF Package Analysis project identified 'cryptoco-auth' @ 1.0.6 (npm) as malicious. It is considered malicious because: - The package executes one or more commands associated with malicious behavior.

    References: https://www.npmjs.com/package/cryptoco-auth/v/1.0.3, https://www.npmjs.com/package/cryptoco-auth/v/1.0.8, https://www.npmjs.com/package/cryptoco-auth/v/1.0.0, https://www.npmjs.com/package/cryptoco-auth/v/1.0.4, https://www.npmjs.com/package/cryptoco-auth/v/1.0.1, https://www.npmjs.com/package/cryptoco-auth/v/1.0.7, https://www.npmjs.com/package/cryptoco-auth/v/1.0.6, https://www.npmjs.com/package/cryptoco-auth/v/1.0.2, https://www.npmjs.com/package/cryptoco-auth/v/1.0.5

    Affected packages

    Package

    Name: cryptoco-auth

    Purl: pkg:npm/cryptoco-auth

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.6
    1.0.3
    1.0.8
    1.0.0
    1.0.4
    1.0.1
    1.0.7
    1.0.2
    1.0.5