PkgRadar

Package evidence

[email protected]

Webhook Exfil Endpoint: matched "webhook.site"

Trust signals

Why this verdict

PkgRadar discounts a release’s score when public reputation argues against novel malware. The verdict above already reflects these — the panel just explains what was applied.

Weekly downloads
186
Versions published
64
First published
Feb 2026
Publisher
prooflayer

Recommended action

Block this update

Static evidence trips multiple high-signal indicators. Quarantine the release until the publisher validates the change or you can rule out the indicators below.

Block this release in CIcurl · GitHub Actions

Fail the build when this package version is added or upgraded. Replace $PKGRADAR_TOKEN with a Pro / Team API key from your dashboard.

curl -fsS https://pkgradar.com/gate/npm \
  -H "Authorization: Bearer $PKGRADAR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"specs":["[email protected]"],"fail_on":"high"}'

GitHub Actions step:

- name: PkgRadar gate
  run: |
    curl -fsS https://pkgradar.com/gate/npm \
      -H "Authorization: Bearer ${{ secrets.PKGRADAR_TOKEN }}" \
      -H "Content-Type: application/json" \
      -d '{"specs":["[email protected]"],"fail_on":"high"}'
Publisherprooflayer
Artifact bytes9,512,865
Previous version4.4.1
Published2026-05-24T03:40:31.388Z
SHA-2566cbbf8e05922b5fc8af0e0e1b9f6607a0c767e98e676cfd9211dfd1fe96285d6

Why flagged

What the scanner saw

Webhook Exfil Endpoint: matched "webhook.site"

Not observed: package install, lifecycle script execution, or sandbox execution. PkgRadar only inspects on-disk artifacts.

Availability ledger

available

high
Last checked
highRisk
75Score
4.4.2Version
Status history (5 events)
  1. availableavailable · risk high · score 75 · status available -> available, risk high -> high, score 267 -> 75
  2. availableavailable · risk high · score 267 · status available -> available, risk high -> high, score 222 -> 267
  3. availableavailable · risk high · score 222 · status available -> available, risk high -> high, score 247 -> 222
  4. availableavailable · risk high · score 247 · status available -> available, risk high -> high, score 1299 -> 247
  5. newavailable · risk high · score 1299 · status changed

Related candidates

Linked campaigns and clusters

Repeated static TTPstale

Install-time lifecycle script — postinstall="node scripts/postinstall.js"

158 members · evidence strength 90
Repeated static TTPstale

Credential file access — matched "aws_secret_access_key"

11 members · evidence strength 90
Publisher / release actor burststale

prooflayer

2 members · evidence strength 64

Evidence

Static findings

10 static · 0 from release diff · showing high-signal first.

SeverityKindPathDetailPoints
highWebhook Exfil Endpointpackage/src/tools/scan-action.jsmatched "webhook.site"40
Show all 10 findings (low-signal and informational)
SeverityKindPathDetailPoints
highWebhook Exfil Endpointpackage/src/tools/scan-action.jsmatched "webhook.site"40
lowCredential file accesspackage/src/fix-patterns.jsmatched "AWS_ACCESS_KEY"5
lowCredential file accesspackage/src/tools/scan-skill.jsmatched ".npmrc"5
lowCredential file accesspackage/regex_fallback.pymatched "aws_secret_access_key"5
lowInstall-time lifecycle scriptpackage.jsonpostinstall="node scripts/postinstall.js"5
lowCredential file accesspackage/rules/agent-attacks.security.yamlmatched "id_rsa"3
lowCredential file accesspackage/rules/generic.secrets.yamlmatched "aws_secret_access_key"3
lowCredential file accesspackage/rules/python/boto3/security/hardcoded-token.yamlmatched "aws_access_key"3
lowCredential file accesspackage/rules/third-party/shopify/python/boto3/security/hardcoded-token.yamlmatched "aws_secret_access_key"3
lowCredential file accesspackage/rules/openclaw.security.yamlmatched "id_rsa"3

Manifest

Package metadata

Scripts6
  • benchmarkpython3 benchmarks/benchmark_runner.py --save --compare-latest
  • postinstallnode scripts/postinstall.js
  • startnode index.js
  • testvitest run
  • test:coveragevitest run --coverage
  • test:watchvitest
Dependencies4
  • @modelcontextprotocol/sdk^1.25.3
  • bloom-filters^3.0.4
  • tar^7.5.9
  • zod^4.3.6