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Malicious package

readmecoloramaPyPI

Advisory published Updated

readmecolorama is a confirmed malicious PyPI package (MAL-2025-5126) that steals credentials and exfiltrates sensitive data (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in readmecolorama (PyPI)

MAL-2025-5126
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall readmecolorama

What this malware does

Importing the module starts download and running a remote executable, identified as malware by AVs

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

Campaign: 2025-05-coloramashowtemp

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • malware

Malicious versions

1 flagged
0.1.0

Indicators of compromise (SHA-256)

7cad9d6c1364c940f087a52f3136ddbcd1e2e7e9118de880284237a1d839055f
c0f43da6669cf9a48e88ad211fe0d2db630c4e94668c3a1feb12d5fef4db7d53
55c2f9671efb3bc3772a29971fae2313022349abe5970a426c36e305e5c25538
4f74e374afe61cdaa52e0c651ae413abc94b50cd15de263a9d247de21bfc6fa1
f19060de81fafe38f1b4cb199a4b1e81561dfb03f5b7138a0bc48c6654f3c929
8c7bf735728e56da8fed531f236ac6f6b4cad05c269cd4591e9268f11c421e5c

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for readmecolorama (version 0.1.0).

  2. If you installed it — respond

    readmecolorama 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 readmecolorama 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. readmecolorama on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-03023RLUA-2025-036732025-05-coloramashowtempRLUA-2026-00690

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks readmecolorama-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

readmecolorama (PyPI) malicious package — MAL-2025-5126 | O3 Security