MAL-2025-191671 Malicious code in aclient-sdk (PyPI)

Malicious package Published
Package
aclient-sdk
Registry
PyPI

What is MAL-2025-191671?

MAL-2025-191671 is a malicious package in aclient-sdk, published on 25 Feb 2025.

Official description

This campaign is built from two parts:

  1. packages named like time-check-server, snapshot-photo contain an innocent-looking code that sends "date" to a remote server,
  2. packages named like alicloud-client are clones of legit aliyun-python-sdk-core package, with a small change in the client.py code, where it imports the time-check-server and calls it, but instead of a date, the credentials to the cloud are exfiltrated. There are also variations with AWS clients

Apparently, the campaign started at least 2 years ago with the snapshot-photo package containing the same functionality as the newer time-check-server (see https://github.com/pypi-data/pypi-mirror-238/blob/code/packages/snapshot-photo/snapshot_photo-0.0.3-py3-none-any.whl/snapshot_photo/date_format.py).


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

Campaign: 2025-02-alicloud-client

Reasons (based on the campaign):

  • clones-real-package

  • action-hidden-in-lib-usage

  • The malicious code is intentionally included in a dependency of the package

  • exfiltration-cloud-tokens

What should I do about MAL-2025-191671?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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