Package evidence

prefect-ob==3.7.2

Py Import Time 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: 3
First published: May 2026

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":["prefect-ob==3.7.2"],"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":["prefect-ob==3.7.2"],"fail_on":"high"}'

Publisherunknown

Artifact bytes13,864,506

Previous versionnone

Published2026-06-02T07:54:05

SHA-2563537abfa63389962bc9f52a338757917f59d4b586c90c47bdc9298000a718dcc

Why flagged

What the scanner saw

Py Import Time 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

11d agoLast checked

highRisk

160Score

3.7.2Version

Status history (1 event)

new → available11d ago · risk high · score 160 · status changed

Evidence

Static findings

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

Severity	Kind	Path	Detail	Points
high	Py Import Time Base64 Decode	prefect_ob-3.7.2/src/prefect/bundles/__init__.py	base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.	48
medium	Py Import Time Subprocess	prefect_ob-3.7.2/src/prefect/bundles/__init__.py	subprocess call — process spawning.	32
high	Py Runtime Base64 Decode	prefect_ob-3.7.2/src/prefect/server/api/server.py	base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.	30
medium	Py Import Time Eval Exec	prefect_ob-3.7.2/src/prefect/utilities/callables/__init__.py	Python eval()/exec() called on a string.	24

Show all 10 findings (low-signal and informational)

Severity	Kind	Path	Detail	Points
high	Py Import Time Base64 Decode	prefect_ob-3.7.2/src/prefect/bundles/__init__.py	base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.	48
medium	Py Import Time Subprocess	prefect_ob-3.7.2/src/prefect/bundles/__init__.py	subprocess call — process spawning.	32
high	Py Runtime Base64 Decode	prefect_ob-3.7.2/src/prefect/server/api/server.py	base64/hex decode combined with exec/subprocess — classic obfuscated payload pattern.	30
medium	Py Import Time Eval Exec	prefect_ob-3.7.2/src/prefect/utilities/callables/__init__.py	Python eval()/exec() called on a string.	24
low	Credential file access	prefect_ob-3.7.2/src/prefect/cli/_prompts.py	matched "aws_access_key"	5
low	Credential file access	prefect_ob-3.7.2/src/prefect/infrastructure/provisioners/ecs.py	matched "aws_access_key"	5
low	Credential file access	prefect_ob-3.7.2/src/prefect/server/database/_migrations/versions/postgresql/2022_07_06_152528_4cdc2ba709a4_migrates_block_schemas_with_new_secrets_.py	matched "aws_access_key"	5
low	Credential file access	prefect_ob-3.7.2/src/prefect/server/database/_migrations/versions/sqlite/2022_07_06_142824_e2dae764a603_migrates_block_schemas_with_new_secrets_.py	matched "aws_access_key"	5
low	Credential file access	prefect_ob-3.7.2/src/prefect/server/collection_blocks_data.json	matched "aws_access_key"	3
low	Credential file access	prefect_ob-3.7.2/src/prefect/server/api/collections_data/views/aggregate-worker-metadata.json	matched "aws_access_key"	3