MAL-2026-3261

    Dashboard / Malicious Package / MAL-2026-3261

    MAL-2026-3261

    Published: 29 Apr 2026Last Modified: 12 May 2026Aliases: 
    GHSA-w76m-ffcr-5rfm

    Summary: Malicious code in internal-auth-provider (npm)

    Details: Dependency confusion and typosquatting campaign by threat actor "saif777". Packages use inflated version numbers (9999.9999.9999, 9999.9999.10000, 50.50.50, 7.66.5) to win version resolution in environments with private registries. All active packages execute a postinstall hook ("node index.js") that collects a system fingerprint — public IP (via api.ipify.org), username, hostname, CPU model, RAM, working directory, OS platform — and exfiltrates it as a Discord embed to a shared webhook (base64-obfuscated in source). Payloads include sandbox/bot detection: machines with ≤1 CPU or <2 GB RAM are flagged as sandbox/CI; real machines trigger a green embed. Targets organisations with a private internal-auth-provider package. The package description self-identifies as a 'security research package for dependency confusion audit', indicating deliberate deception. Source: amazon-inspector (76a6ba942ecf9ea05ab48effb39c99f4fab5f4e605b9acbd71c76d7a2f993318) The package internal-auth-provider was found to contain malicious code. Source: ghsa-malware (9b0b45d99f2f9fcef2b68ab24bfa6ca0d37a13f9ca343972df8541a59a0f4358) 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.

    Affected packages

    Package

    Name: internal-auth-provider

    Purl: pkg:npm/internal-auth-provider

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    50.50.50