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Malicious package

quicolorPyPI

Advisory published Updated

quicolor is a confirmed malicious PyPI package (MAL-2025-3462) that steals credentials and exfiltrates sensitive data (malicious versions 9.7.3, 9.8.1, 10.0.0…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in quicolor (PyPI)

MAL-2025-3462
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall quicolor

What this malware does

Importing the module starts a code that exfiltrates data from local Telegram application

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

Campaign: 2025-03-quicolor

Reasons (based on the campaign):

  • exfiltration-generic

Malicious versions

10 flagged
9.7.39.8.110.0.010.0.110.0.210.0.310.0.410.0.510.0.610.0.9

Indicators of compromise (SHA-256)

6992e043da359299c0602007c4171c2812d8fb23710de6962240e111a677e7fe
672dc3cd0bf9a03396ecf3f2a881816efe7517f94912ccbf8aebda5579d66751
4b11a81f135d7d2ac414b7144af73523d15db7b0ce1a2757ba6ba95f50bf0be8
f942292de0d605b8134f722cc3b874a17340ae510ece7c2b942c6553ace9a4f8
5eae13e9042ef97b67fd708be79993f965f6d7eab5ee2881784d05c68ef14aab
fcc46d77ccf7d9617569b7c6468fcbb3aa8db7f7e112ed12bcf336937b94274c

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for quicolor (10 malicious versions).

  2. If you installed it — respond

    quicolor 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 quicolor 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. quicolor on PyPI has been identified as a malicious package (versions 9.7.3, 9.8.1, 10.0.0, 10.0.1, 10.0.2, 10.0.3, 10.0.4, 10.0.5, and 2 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-025262025-03-quicolorRLUA-2026-00680

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks quicolor-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

quicolor (PyPI) malicious package — MAL-2025-3462 | O3 Security