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Part of a larger attack: 2024-08-invokehttp published 9 malicious packages. See the full campaign →
Malicious package

asyncmodulesPyPI

Advisory published Updated

asyncmodules is a confirmed malicious PyPI package (MAL-2024-11533) that steals credentials and exfiltrates sensitive data (malicious version 2.3.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in asyncmodules (PyPI)

MAL-2024-11533
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall asyncmodules

What this malware does

In the invokehttp, the init.py contains obfuscated code attempting to download and run one of two executables. They are identified as malicious by VT and the tracks of Telegram URLs suggests attempting data exfiltration. The package itself looks like a copy of requests. In flophttp, using exactly the same obfuscation method, the infostealer is directly embeded into package code and exfiltrates data to a telegram channel.

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

Campaign: 2024-08-invokehttp

Reasons (based on the campaign):

  • infostealer

  • Downloads and executes a remote executable.

  • obfuscation

  • clones-real-package

Malicious versions

1 flagged
2.3.5

Indicators of compromise (SHA-256)

b2c1183899f718bc785b55c78cfac2b90945b16a7a16af8cd74677a89484dfd3
f584355fc4dd04444c8436f9e8458c3112198801fd43940322942c3005c7d255
4089e0f824ae366e1e3e128e2213a6700d6bddea0b9209fd426148a0792edd53
249cd96039a8f96f9bc8cb3a16afb5018ab0bf82cc769fcb02de8decc7a89bc8
b23c4b7bcffa6ce87e0442939063b4cd987455a2670617876eb6e4c5192e8a5f

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for asyncmodules (version 2.3.5).

  2. If you installed it — respond

    asyncmodules 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 asyncmodules 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. asyncmodules on PyPI has been identified as a malicious package (version 2.3.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-109772024-08-invokehttpRLUA-2026-00091

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks asyncmodules-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

asyncmodules (PyPI) malicious package — MAL-2024-11533 | O3 Security