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Malicious package

aoohttpPyPI

Advisory published Updated

aoohttp is a confirmed malicious PyPI package (MAL-2026-37) that steals credentials and exfiltrates sensitive data (malicious version 3.13.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in aoohttp (PyPI)

MAL-2026-37
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall aoohttp

What this malware does

Obfuscated code downloads an encrypted binary blob, which is malware finally starting cryptomining. After starting the malware, the Python package uninstall itself and installs the legitimate package, covering tracks of the infection.

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

Campaign: 2026-01-aiihttp

Reasons (based on the campaign):

  • typosquatting

  • Downloads and executes a remote executable.

  • malware

  • cryptominer

  • obfuscation

  • covering-tracks

Malicious versions

1 flagged
3.13.3

Indicators of compromise (SHA-256)

9d3438b2d065c0535b5ac80ce789201be4f8095642d0f10a20a7da13d46152f8

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for aoohttp (version 3.13.3).

  2. If you installed it — respond

    aoohttp 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 aoohttp 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. aoohttp on PyPI has been identified as a malicious package (version 3.13.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-01-aiihttp

References

Credits

  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks aoohttp-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

aoohttp (PyPI) malicious package — MAL-2026-37 | O3 Security