registry / Malware / signalledger-diagnostics

signalledger-diagnostics

A configurable, namespaced Animate.css integration for Tailwind CSS

This report shows the evidence for signalledger-diagnostics@2.0.6, the only known version.

OpenSSF/OSV Malicious Advisory

imported 3d ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-18076 confirms this npm version as malicious.

Advisory

MAL-2026-18076

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in signalledger-diagnostics (npm)

Details

signalledger-diagnostics (2.0.6) is a Tailwind CSS plugin from the fake job interview campaign behind MAL-2026-17665 and MAL-2026-17666: the same Animate.css integration template, README and description, published by scott-rogers on 2026-09-28. src/motion.js:5 requires the private scoped package @aaron205whitmore/postcss-animate-utils, which is not readable on the public registry and resolves only with the npm token committed in the lure repository's web/.npmrc, so the code it delivers runs when tailwind.config.js loads the plugin and the dev server starts. The published tarball contains no install scripts and no network code; the payload lives in the private dependency, which was not retrieved. Twenty-six such packages under seventeen accounts were published between 2026-07-28 and 2026-10-09.

References

OpenSSF/OSV advisory ADVISORY ADVISORY ADVISORY WEB

Independent LPM AI assessment

Manual Review

Independent AI assessment: manual_review. LPM AI review remains unresolved.

The inspected package source shows a Tailwind CSS plugin with no install lifecycle hook, but it imports an unresolved runtime dependency that is called as a PostCSS plugin. The dependency's behavior cannot be verified from the available source, so the package requires manual review without evidence of an attack.

Static reason

No blocking static signals were detected.

Trigger

Tailwind invokes the plugin callback to generate styles.

Impact

The unavailable dependency prevents a complete source-based assessment; the inspected package code does not establish malicious behavior.

Mechanism

The callback reaches a PostCSS plugin imported from an unavailable dependency, so its behavior could not be verified.

AI rationale

Evidence

package.jsonplugin.jssrc/motion.js

Independent scan evidence

public snapshot

AI called this Manual Review at 94.0% confidence as Unknown with medium false-positive risk.

AI review observations

package.json declares @aaron205whitmore/postcss-animate-utils as a runtime dependency.
src/motion.js imports that dependency and calls it as a PostCSS plugin.
The plugin builds animation styles through src/motion.js when Tailwind invokes its callback.

Evidence against

The inspected package manifest contains no install lifecycle hook; its scripts are lint and test.
The inspected plugin path uses the dependency to build and register CSS styles.

Behavioral surface

Source

Filesystem

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 5 file(s), 10.2 KB of source

Source & flagged code

4 flagged

package.jsonView file

Lines 12-49json

12 ],

13 "homepage": "https://envelopergit.github.io/signalledger-diagnostics/",

14 "repository": "https://github.com/envelopergit/signalledger-diagnostics/",

15 "author": "envelopergit",

16 "license": "MIT",

17 "keywords": [

18 "tailwindcss",

19 "tailwindcss-plugin",

20 "animate.css",

21 "animation",

22 "keyframes",

23 "motion"

24 ],

25 "scripts": {

26 "lint": "eslint . --ext .js",

27 "test": "node --test"

28 },

29 "dependencies": {

30 "animate.css": "^4.1.1",

31 "postcss": "^8.4.5",

32 "@aaron205whitmore/postcss-animate-utils": "^1.0.1",

33 "postcss-js": "^3.0.3",

34 "postcss-selector-parser": "^6.0.8"

35 },

36 "devDependencies": {

37 "eslint": "^8.5.0",

38 "eslint-config-airbnb-base": "15.0.0",

High

Suspicious Dependency Evidence

package.json declares @aaron205whitmore/postcss-animate-utils as a runtime dependency.

package.jsonView on unpkg · L32

39 "eslint-plugin-import": "^2.25.2",

40 "tailwindcss": "^3.0.7"

41 },

42 "peerDependencies": {

43 "tailwindcss": "^3"

44 },

45 "engines": {

46 "node": ">=18"

47 }

48}

src/motion.jsView file

Lines 1-34javascript

1'use strict';

3const postcss = require('postcss');

4const postcssJs = require('postcss-js');

5const

plugin.jsView file

Lines 1-22javascript

1'use strict';

3const tailwindPlugin = require('tailwindcss/plugin');

4const { loadCatalog } = require('./src/catalog');

5const

Source & flagged code

4 flagged · loading source

package.jsonView file

32"@aaron205whitmore/postcss-animate-utils": "^1.0.1", "postcss-js": "^3.0.3", "postcss-selector-parser": "^6.0.8" }, "devDependencies": { "eslint": "^8.5.0",

High

Suspicious Dependency Evidence

package.json declares @aaron205whitmore/postcss-animate-utils as a runtime dependency.

package.jsonView on unpkg · L32

src/motion.jsView file

5const postcssAnimateUtils = require('@aaron205whitmore/postcss-animate-utils'); function toPostcssOptions(config) { return { variables: { enabled: true, se

High

Suspicious Dependency Evidence

src/motion.js imports that dependency and calls it as a PostCSS plugin.

src/motion.jsView on unpkg · L5

28const processor = postcss([postcssAnimateUtils(toPostcssOptions(config))]); const result = processor.process('', { from: undefined }).sync(); return postcssJs.objectify(resul

High

Findings

4 High2 Low

HighSuspicious Dependency Evidencepackage.json

HighSuspicious Dependency Evidencesrc/motion.js

HighAi Review Evidenceplugin.js

LowScripts Present

LowFilesystem

Affected versions and remediation

This report applies to signalledger-diagnostics@2.0.6.

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

Avoid installing signalledger-diagnostics@2.0.6. 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: 2026-10-20 10:14:48.643Z (UTC).

Source advisory published: 2026-10-19 00:00:00.000Z (UTC).

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

Versions

1 known version

2.0.6latestshownMaliciousMalwareBlockPublishedSep 28, 2026, 9:54 AM

OpenSSF/OSV Malicious Advisory

Independent LPM AI assessment

Independent scan evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other malware packages

Behavioral surface

Related packages

Other malware packages

Source & flagged code