MAL-2026-15935

    Dashboard / Malicious Package / MAL-2026-15935

    MAL-2026-15935

    Published: 5 Sept 2026Last Modified: 11 Sept 2026

    Summary: Malicious code in proxycer (PyPI)

    Details: Source: amazon-inspector (2286dac5be0a9e8cc2e7b1ff92253d4b09beb0c43d5e795b9b9ea1391e6f8764) The package's top-level __init__.py imports starts.py, which is a single-line loader that reverses a ~100KB string literal, base64-decodes it, marshal.loads the result into a code object, and exec()s it. All actual functionality is concealed behind reversal + base64 + marshal bytecode obfuscation, with an empty README and empty PKG-INFO description. The obfuscated code object runs automatically on `import proxycer`, so any behavior it contains (credential access, outbound network, filesystem writes, persistence) executes on the installer's host without source visibility. Source: kam193 (c7f54d8a442ae6b7c359629af5db210aafade4776e03f44895e67923bd464e29) The provided functionality hides code that exfiltrates files to a remote location. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-09-asti Reasons (based on the campaign): - files-exfiltration - action-hidden-in-lib-usage - target:android

    References: https://bad-packages.kam193.eu/pypi/package/proxycer, https://pypi.org/project/proxycer/0.1.0/

    Affected packages

    Package

    Name: proxycer

    Purl: pkg:pypi/proxycer

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    0.1.0