Package evidence

fastcrest-tether==0.12.0

Py Runtime Base64 Decode: base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.

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.

Versions published: 1
First published: Jun 2026
Publisher: FastCrest

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.

Inspect tarball Add to CI gate

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":["fastcrest-tether==0.12.0"],"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":["fastcrest-tether==0.12.0"],"fail_on":"high"}'

PublisherFastCrest

Artifact bytes2,508,521

Previous versionnone

Published2026-06-10T07:47:36

SHA-2565b851a1e813d8ee7dabc75bbf8e3c905507ade304fe1ff5a368c63d66e716baf

Why flagged

What the scanner saw

Py Runtime Base64 Decode: base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.

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

Availability ledger

available

high

31h agoLast checked

highRisk

78Score

0.12.0Version

Status history (1 event)

new → available31h ago · risk high · score 78 · status changed

Evidence

Static findings

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

Severity	Kind	Path	Detail	Points
high	Py Runtime Base64 Decode	fastcrest_tether-0.12.0/scripts/modal_zmq_vs_http_ab.py	base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.	30
medium	Py Import Time Ctypes Load	fastcrest_tether-0.12.0/src/tether/__init__.py	ctypes.CDLL/cdll.LoadLibrary — loads native code into the process.	24
medium	Remote Payload	fastcrest_tether-0.12.0/infra/contribution-worker/deploy.sh	matched "curl "	12
medium	Remote Payload	fastcrest_tether-0.12.0/infra/license-worker/deploy.sh	matched "curl "	12