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Malicious package

requtilsPyPI

Advisory published Updated

requtils is a confirmed malicious PyPI package (MAL-2025-191857) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1, 1.0.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in requtils (PyPI)

MAL-2025-191857
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall requtils

What this malware does

Package attempts to automatically exfiltrate API keys

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

Campaign: 2025-11-requtils

Reasons (based on the campaign):

  • exfiltration-credentials

Malicious versions

3 flagged
1.0.01.0.11.0.2

Indicators of compromise (SHA-256)

fe6a750c7905b4055bb50dd510881095279e4d4b8516d24f6be8366b4030d9cb
58a7ebfdccf4fd67fac4e6a3c3183918f4682e004468286a5675622ae6fc35c5
b59fcdda302a7ab5ee48d61ff27e907a0116b426f930ab8910a455ed611833f0
30f58750066fe3e80b742e5df55e3efffc40d36545e31f97d137b60ee31cf3f2
87815bb56ad05ee04b068c4b387e2b6e540bee2546c20cdc124e9b2601397835

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for requtils (3 malicious versions).

  2. If you installed it — respond

    requtils 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 requtils 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. requtils on PyPI has been identified as a malicious package (versions 1.0.0, 1.0.1, 1.0.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-11-requtilsRLMA-2025-06587RLUA-2026-00717

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks requtils-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

requtils (PyPI) malicious package — MAL-2025-191857 | O3 Security