Package evidence

mainsequence==4.2.25

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: 237Established · −30% score
First published: Sep 2025

Effective trust discount applied: −30% (max across signals — discounts don’t stack). New install-lifecycle deltas vs the previous release would clear the discount.

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":["mainsequence==4.2.25"],"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":["mainsequence==4.2.25"],"fail_on":"high"}'

Publisherunknown

Artifact bytes479,562

Previous versionnone

Published2026-06-03T21:40:06

SHA-256f59f9d5710161f4b0f757ceeefb7824f387c89d3f933b4c564d356d2d0e3e0a5

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

10h agoLast checked

highRisk

21Score

4.2.25Version

Status history (1 event)

new → available10h ago · risk high · score 21 · status changed

Evidence

Static findings

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

Severity	Kind	Path	Detail	Points
high	Py Runtime Base64 Decode	mainsequence-4.2.25/mainsequence/client/utils.py	base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.	30