registry / Malware / fanduel

fanduel

This report shows the evidence for fanduel@100.5.0. 4 of 4 known versions are blocked or flagged. See all versions.

This package appears in our research on the dependency confusion probes at version 99 and above, with how it works, the full package list and what to do if you installed it.

OpenSSF/OSV Malicious Advisory

imported 4mo ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-3334 confirms this npm version as malicious.

Advisory

MAL-2026-3334

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in fanduel (npm)

Details

The package fanduel was found to contain malicious code. ## Source: ghsa-malware (031c1b526196f26d62b4ef54e450a2b85f88b3eab78f69f17e73c83f49ebabef) 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. ## Source: ossf-package-analysis (49d980743cd761f6fb629d32e14864e720d1269e4208ec9e0f075c5e9f6eb433) The OpenSSF Package Analysis project identified 'fanduel' @ 100.5.0 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity.

References

OpenSSF/OSV advisory ADVISORY

Independent scan evidence

public snapshot

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStrings

ManifestNo manifest risk signals triggered.

scanned 1 file(s), 14.0 KB of source

Source & flagged code

3 flagged

package.jsonView file

•scripts.preinstall = node index.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

index.jsView file

4const fs = require("fs"); L5: const { exec } = require("child_process"); L6: const crypto = require("crypto");

High

Child Process

Package source references child process execution.

index.jsView on unpkg · L4

1const https = require("https"); L2: const os = require("os"); ... L4: const fs = require("fs"); L5: const { exec } = require("child_process"); L6: const crypto = require("crypto"); ... L14: // Common CI variables L15: CI: process.env.CI || null, L16: GITHUB_ACTIONS: process.env.GITHUB_ACTIONS || null,

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

index.jsView on unpkg · L1

Source & flagged code

3 flagged · loading source

package.jsonView file

•scripts.preinstall = node index.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

index.jsView file

4const fs = require("fs"); L5: const { exec } = require("child_process"); L6: const crypto = require("crypto");

High

Child Process

Package source references child process execution.

index.jsView on unpkg · L4

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

index.jsView on unpkg · L1

Findings

3 High3 Medium3 Low

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processindex.js

HighSame File Env Network Executionindex.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

Affected versions and remediation

This report applies to fanduel@100.5.0.

The versions list below shows the verdict for each recorded version.

Avoid installing fanduel@100.5.0. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-08-17 05:00:14.539Z (UTC).

Source advisory published: 2026-05-04 21:55:51.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

4 known versions

100.5.0latestshownMaliciousMalwareBlockPublishedMay 4, 2026, 9:29 PM 100.4.0MaliciousMalwareBlockPublishedMay 4, 2026, 5:14 PM 100.2.0MaliciousMalwareBlockPublishedMay 4, 2026, 4:28 PM 100.0.0MaliciousMalwareBlockPublishedMay 4, 2026, 4:03 PM

OpenSSF/OSV Malicious Advisory

Independent scan evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other malware packages

Related packages

Other malware packages

Source & flagged code