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Malicious package

noteasonfnsourcePyPI

Advisory published Updated

noteasonfnsource is a confirmed malicious PyPI package (MAL-2026-1098) that steals credentials and exfiltrates sensitive data (malicious version 1.0.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in noteasonfnsource (PyPI)

MAL-2026-1098
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall noteasonfnsource

What this malware does

Code provides a Discord bot, which - once a generic command is called - performs malicious action against the Discord server: deletes all channels, renames the server, and then starts a loop that creates spamming channels and notifies everyone.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-02-old-noteasonfnsource

Reasons (based on the campaign):

  • abusing-3rd-api

  • other

Malicious versions

1 flagged
1.0.3

Indicators of compromise (SHA-256)

fa2242ec1849ffa55a55c85b7781623cdc7147b8568b3beaa5d2b3b956c04e17

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for noteasonfnsource (version 1.0.3).

  2. If you installed it — respond

    noteasonfnsource is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If noteasonfnsource was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. noteasonfnsource on PyPI has been identified as a malicious package (version 1.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-02-old-noteasonfnsource

References

Credits

  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks noteasonfnsource-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

noteasonfnsource (PyPI) malicious package — MAL-2026-1098 | O3 Security